/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/sum_invariant.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-18 14:06:21,930 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 14:06:21,932 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 14:06:21,995 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-18 14:06:22,031 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf [2022-01-18 14:06:22,052 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 14:06:22,053 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 14:06:22,053 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 14:06:22,053 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 14:06:22,054 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 14:06:22,054 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 14:06:22,054 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 14:06:22,054 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 14:06:22,054 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 14:06:22,054 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 14:06:22,055 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 14:06:22,055 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 14:06:22,055 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 14:06:22,055 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 14:06:22,055 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 14:06:22,055 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 14:06:22,055 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 14:06:22,055 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 14:06:22,055 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 14:06:22,056 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 14:06:22,056 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 14:06:22,056 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 14:06:22,056 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 14:06:22,056 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 14:06:22,057 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 14:06:22,057 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 14:06:22,057 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 14:06:22,057 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 14:06:22,057 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 14:06:22,057 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 14:06:22,057 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 14:06:22,057 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 14:06:22,057 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 14:06:22,058 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2022-01-18 14:06:22,058 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 14:06:22,219 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 14:06:22,235 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 14:06:22,237 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 14:06:22,238 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-01-18 14:06:22,239 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-01-18 14:06:22,239 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/sum_invariant.bpl [2022-01-18 14:06:22,240 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/sum_invariant.bpl' [2022-01-18 14:06:22,255 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 14:06:22,256 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-18 14:06:22,257 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 14:06:22,257 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 14:06:22,257 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 14:06:22,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sum_invariant.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 02:06:22" (1/1) ... [2022-01-18 14:06:22,269 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sum_invariant.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 02:06:22" (1/1) ... [2022-01-18 14:06:22,274 INFO L137 Inliner]: procedures = 2, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-01-18 14:06:22,275 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 14:06:22,276 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 14:06:22,276 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 14:06:22,276 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 14:06:22,281 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum_invariant.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 02:06:22" (1/1) ... [2022-01-18 14:06:22,282 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum_invariant.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 02:06:22" (1/1) ... [2022-01-18 14:06:22,283 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum_invariant.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 02:06:22" (1/1) ... [2022-01-18 14:06:22,283 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum_invariant.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 02:06:22" (1/1) ... [2022-01-18 14:06:22,284 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum_invariant.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 02:06:22" (1/1) ... [2022-01-18 14:06:22,284 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum_invariant.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 02:06:22" (1/1) ... [2022-01-18 14:06:22,286 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum_invariant.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 02:06:22" (1/1) ... [2022-01-18 14:06:22,286 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 14:06:22,287 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 14:06:22,287 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 14:06:22,287 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 14:06:22,288 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum_invariant.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 02:06:22" (1/1) ... [2022-01-18 14:06:22,293 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 14:06:22,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 14:06:22,312 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-18 14:06:22,319 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-18 14:06:22,333 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-01-18 14:06:22,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 14:06:22,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 14:06:22,334 INFO L124 BoogieDeclarations]: Specification and implementation of procedure Thread given in one single declaration [2022-01-18 14:06:22,334 INFO L130 BoogieDeclarations]: Found specification of procedure Thread [2022-01-18 14:06:22,334 INFO L138 BoogieDeclarations]: Found implementation of procedure Thread [2022-01-18 14:06:22,334 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-18 14:06:22,363 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 14:06:22,364 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 14:06:22,424 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 14:06:22,430 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 14:06:22,430 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-18 14:06:22,432 INFO L202 PluginConnector]: Adding new model sum_invariant.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 02:06:22 BoogieIcfgContainer [2022-01-18 14:06:22,432 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 14:06:22,434 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 14:06:22,434 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 14:06:22,436 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 14:06:22,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum_invariant.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 02:06:22" (1/2) ... [2022-01-18 14:06:22,438 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d9a4c78 and model type sum_invariant.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 02:06:22, skipping insertion in model container [2022-01-18 14:06:22,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum_invariant.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 02:06:22" (2/2) ... [2022-01-18 14:06:22,438 INFO L111 eAbstractionObserver]: Analyzing ICFG sum_invariant.bpl [2022-01-18 14:06:22,442 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 14:06:22,442 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 14:06:22,443 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 14:06:22,443 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 14:06:22,469 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 14:06:22,469 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 14:06:22,469 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 14:06:22,470 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 14:06:22,471 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 14:06:22,472 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 14:06:22,473 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 14:06:22,474 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 14:06:22,474 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 14:06:22,474 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 14:06:22,474 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 14:06:22,475 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 14:06:22,477 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 14:06:22,478 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 14:06:22,478 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 14:06:22,478 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 14:06:22,479 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 14:06:22,481 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 14:06:22,483 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 14:06:22,483 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 14:06:22,483 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 14:06:22,484 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 14:06:22,484 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 14:06:22,484 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 14:06:22,488 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 14:06:22,490 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 14:06:22,491 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 14:06:22,491 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 14:06:22,504 INFO L148 ThreadInstanceAdder]: Constructed 16 joinOtherThreadTransitions. [2022-01-18 14:06:22,551 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 14:06:22,559 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 14:06:22,559 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-18 14:06:22,569 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 45 places, 44 transitions, 156 flow [2022-01-18 14:06:22,685 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1454 states, 1453 states have (on average 3.318651066758431) internal successors, (4822), 1453 states have internal predecessors, (4822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:22,689 INFO L276 IsEmpty]: Start isEmpty. Operand has 1454 states, 1453 states have (on average 3.318651066758431) internal successors, (4822), 1453 states have internal predecessors, (4822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:22,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:22,711 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:22,711 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:22,712 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:22,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:22,715 INFO L85 PathProgramCache]: Analyzing trace with hash 121526397, now seen corresponding path program 1 times [2022-01-18 14:06:22,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:22,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90566435] [2022-01-18 14:06:22,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:22,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:22,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:22,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:22,884 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:22,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90566435] [2022-01-18 14:06:22,885 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90566435] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:22,885 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:22,885 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 14:06:22,886 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678846569] [2022-01-18 14:06:22,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:22,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 14:06:22,889 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:22,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 14:06:22,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 14:06:22,926 INFO L87 Difference]: Start difference. First operand has 1454 states, 1453 states have (on average 3.318651066758431) internal successors, (4822), 1453 states have internal predecessors, (4822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:23,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:23,027 INFO L93 Difference]: Finished difference Result 1329 states and 4322 transitions. [2022-01-18 14:06:23,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 14:06:23,032 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:23,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:23,058 INFO L225 Difference]: With dead ends: 1329 [2022-01-18 14:06:23,058 INFO L226 Difference]: Without dead ends: 1329 [2022-01-18 14:06:23,060 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 14:06:23,064 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 21 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:23,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 27 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 14:06:23,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1329 states. [2022-01-18 14:06:23,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1329 to 1329. [2022-01-18 14:06:23,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1329 states, 1328 states have (on average 3.2545180722891565) internal successors, (4322), 1328 states have internal predecessors, (4322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:23,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1329 states to 1329 states and 4322 transitions. [2022-01-18 14:06:23,188 INFO L78 Accepts]: Start accepts. Automaton has 1329 states and 4322 transitions. Word has length 26 [2022-01-18 14:06:23,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:23,188 INFO L470 AbstractCegarLoop]: Abstraction has 1329 states and 4322 transitions. [2022-01-18 14:06:23,188 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:23,188 INFO L276 IsEmpty]: Start isEmpty. Operand 1329 states and 4322 transitions. [2022-01-18 14:06:23,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:23,192 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:23,192 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:23,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 14:06:23,192 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:23,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:23,193 INFO L85 PathProgramCache]: Analyzing trace with hash -75910629, now seen corresponding path program 1 times [2022-01-18 14:06:23,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:23,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070794168] [2022-01-18 14:06:23,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:23,195 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:23,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:23,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:23,236 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:23,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070794168] [2022-01-18 14:06:23,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070794168] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:23,238 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:23,238 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 14:06:23,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062927176] [2022-01-18 14:06:23,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:23,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 14:06:23,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:23,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 14:06:23,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 14:06:23,241 INFO L87 Difference]: Start difference. First operand 1329 states and 4322 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:23,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:23,276 INFO L93 Difference]: Finished difference Result 1114 states and 3592 transitions. [2022-01-18 14:06:23,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 14:06:23,276 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:23,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:23,285 INFO L225 Difference]: With dead ends: 1114 [2022-01-18 14:06:23,285 INFO L226 Difference]: Without dead ends: 1114 [2022-01-18 14:06:23,285 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 14:06:23,286 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 18 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:23,286 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 43 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 14:06:23,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1114 states. [2022-01-18 14:06:23,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1114 to 1114. [2022-01-18 14:06:23,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1114 states, 1113 states have (on average 3.2273135669362083) internal successors, (3592), 1113 states have internal predecessors, (3592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:23,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1114 states to 1114 states and 3592 transitions. [2022-01-18 14:06:23,317 INFO L78 Accepts]: Start accepts. Automaton has 1114 states and 3592 transitions. Word has length 26 [2022-01-18 14:06:23,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:23,320 INFO L470 AbstractCegarLoop]: Abstraction has 1114 states and 3592 transitions. [2022-01-18 14:06:23,325 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:23,325 INFO L276 IsEmpty]: Start isEmpty. Operand 1114 states and 3592 transitions. [2022-01-18 14:06:23,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:23,327 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:23,327 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:23,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 14:06:23,328 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:23,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:23,328 INFO L85 PathProgramCache]: Analyzing trace with hash -65705739, now seen corresponding path program 1 times [2022-01-18 14:06:23,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:23,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87271158] [2022-01-18 14:06:23,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:23,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:23,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:23,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:23,467 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:23,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87271158] [2022-01-18 14:06:23,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87271158] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:23,467 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:23,467 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 14:06:23,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865836030] [2022-01-18 14:06:23,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:23,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 14:06:23,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:23,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 14:06:23,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-18 14:06:23,469 INFO L87 Difference]: Start difference. First operand 1114 states and 3592 transitions. Second operand has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:23,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:23,639 INFO L93 Difference]: Finished difference Result 1876 states and 5924 transitions. [2022-01-18 14:06:23,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 14:06:23,639 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:23,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:23,646 INFO L225 Difference]: With dead ends: 1876 [2022-01-18 14:06:23,646 INFO L226 Difference]: Without dead ends: 1614 [2022-01-18 14:06:23,647 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-18 14:06:23,647 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 51 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:23,648 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 149 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 14:06:23,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1614 states. [2022-01-18 14:06:23,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1614 to 1614. [2022-01-18 14:06:23,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1614 states, 1613 states have (on average 3.135771853688779) internal successors, (5058), 1613 states have internal predecessors, (5058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:23,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1614 states to 1614 states and 5058 transitions. [2022-01-18 14:06:23,680 INFO L78 Accepts]: Start accepts. Automaton has 1614 states and 5058 transitions. Word has length 26 [2022-01-18 14:06:23,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:23,681 INFO L470 AbstractCegarLoop]: Abstraction has 1614 states and 5058 transitions. [2022-01-18 14:06:23,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:23,681 INFO L276 IsEmpty]: Start isEmpty. Operand 1614 states and 5058 transitions. [2022-01-18 14:06:23,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:23,684 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:23,684 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:23,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 14:06:23,685 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:23,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:23,685 INFO L85 PathProgramCache]: Analyzing trace with hash 2112992439, now seen corresponding path program 2 times [2022-01-18 14:06:23,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:23,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532534219] [2022-01-18 14:06:23,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:23,685 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:23,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:23,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:23,770 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:23,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532534219] [2022-01-18 14:06:23,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532534219] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:23,771 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:23,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 14:06:23,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889316436] [2022-01-18 14:06:23,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:23,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 14:06:23,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:23,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 14:06:23,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-18 14:06:23,772 INFO L87 Difference]: Start difference. First operand 1614 states and 5058 transitions. Second operand has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:23,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:23,975 INFO L93 Difference]: Finished difference Result 1887 states and 5832 transitions. [2022-01-18 14:06:23,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 14:06:23,976 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:23,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:23,983 INFO L225 Difference]: With dead ends: 1887 [2022-01-18 14:06:23,983 INFO L226 Difference]: Without dead ends: 1628 [2022-01-18 14:06:23,983 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-18 14:06:23,989 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 57 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:23,992 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 195 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:23,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1628 states. [2022-01-18 14:06:24,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1628 to 1508. [2022-01-18 14:06:24,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1508 states, 1507 states have (on average 3.1360318513603187) internal successors, (4726), 1507 states have internal predecessors, (4726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:24,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1508 states to 1508 states and 4726 transitions. [2022-01-18 14:06:24,031 INFO L78 Accepts]: Start accepts. Automaton has 1508 states and 4726 transitions. Word has length 26 [2022-01-18 14:06:24,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:24,032 INFO L470 AbstractCegarLoop]: Abstraction has 1508 states and 4726 transitions. [2022-01-18 14:06:24,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:24,032 INFO L276 IsEmpty]: Start isEmpty. Operand 1508 states and 4726 transitions. [2022-01-18 14:06:24,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:24,036 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:24,036 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:24,036 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-18 14:06:24,037 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:24,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:24,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1975769485, now seen corresponding path program 3 times [2022-01-18 14:06:24,037 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:24,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609899069] [2022-01-18 14:06:24,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:24,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:24,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:24,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:24,163 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:24,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609899069] [2022-01-18 14:06:24,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609899069] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:24,163 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:24,163 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 14:06:24,163 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807713223] [2022-01-18 14:06:24,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:24,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 14:06:24,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:24,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 14:06:24,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-18 14:06:24,165 INFO L87 Difference]: Start difference. First operand 1508 states and 4726 transitions. Second operand has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:24,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:24,369 INFO L93 Difference]: Finished difference Result 1901 states and 5814 transitions. [2022-01-18 14:06:24,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 14:06:24,369 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:24,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:24,376 INFO L225 Difference]: With dead ends: 1901 [2022-01-18 14:06:24,376 INFO L226 Difference]: Without dead ends: 1646 [2022-01-18 14:06:24,377 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-18 14:06:24,380 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 57 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:24,380 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 195 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:24,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2022-01-18 14:06:24,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 1458. [2022-01-18 14:06:24,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1458 states, 1457 states have (on average 3.1256005490734386) internal successors, (4554), 1457 states have internal predecessors, (4554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:24,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1458 states to 1458 states and 4554 transitions. [2022-01-18 14:06:24,440 INFO L78 Accepts]: Start accepts. Automaton has 1458 states and 4554 transitions. Word has length 26 [2022-01-18 14:06:24,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:24,440 INFO L470 AbstractCegarLoop]: Abstraction has 1458 states and 4554 transitions. [2022-01-18 14:06:24,440 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:24,440 INFO L276 IsEmpty]: Start isEmpty. Operand 1458 states and 4554 transitions. [2022-01-18 14:06:24,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:24,443 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:24,443 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:24,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-18 14:06:24,443 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:24,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:24,444 INFO L85 PathProgramCache]: Analyzing trace with hash 202928693, now seen corresponding path program 4 times [2022-01-18 14:06:24,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:24,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015381086] [2022-01-18 14:06:24,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:24,444 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:24,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:24,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:24,543 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:24,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015381086] [2022-01-18 14:06:24,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015381086] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:24,543 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:24,543 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:06:24,543 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243930729] [2022-01-18 14:06:24,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:24,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:06:24,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:24,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:06:24,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:24,544 INFO L87 Difference]: Start difference. First operand 1458 states and 4554 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:24,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:24,766 INFO L93 Difference]: Finished difference Result 1678 states and 5178 transitions. [2022-01-18 14:06:24,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:06:24,766 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:24,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:24,773 INFO L225 Difference]: With dead ends: 1678 [2022-01-18 14:06:24,774 INFO L226 Difference]: Without dead ends: 1484 [2022-01-18 14:06:24,774 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:24,775 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 63 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:24,775 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 247 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:24,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1484 states. [2022-01-18 14:06:24,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1484 to 1406. [2022-01-18 14:06:24,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1406 states, 1405 states have (on average 3.1302491103202845) internal successors, (4398), 1405 states have internal predecessors, (4398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:24,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1406 states to 1406 states and 4398 transitions. [2022-01-18 14:06:24,803 INFO L78 Accepts]: Start accepts. Automaton has 1406 states and 4398 transitions. Word has length 26 [2022-01-18 14:06:24,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:24,804 INFO L470 AbstractCegarLoop]: Abstraction has 1406 states and 4398 transitions. [2022-01-18 14:06:24,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:24,804 INFO L276 IsEmpty]: Start isEmpty. Operand 1406 states and 4398 transitions. [2022-01-18 14:06:24,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:24,808 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:24,808 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:24,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-18 14:06:24,808 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:24,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:24,809 INFO L85 PathProgramCache]: Analyzing trace with hash 682573297, now seen corresponding path program 5 times [2022-01-18 14:06:24,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:24,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845551670] [2022-01-18 14:06:24,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:24,809 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:24,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:24,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:24,907 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:24,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845551670] [2022-01-18 14:06:24,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845551670] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:24,907 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:24,907 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 14:06:24,908 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930153422] [2022-01-18 14:06:24,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:24,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 14:06:24,908 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:24,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 14:06:24,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-18 14:06:24,908 INFO L87 Difference]: Start difference. First operand 1406 states and 4398 transitions. Second operand has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:25,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:25,088 INFO L93 Difference]: Finished difference Result 1788 states and 5480 transitions. [2022-01-18 14:06:25,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 14:06:25,088 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:25,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:25,095 INFO L225 Difference]: With dead ends: 1788 [2022-01-18 14:06:25,095 INFO L226 Difference]: Without dead ends: 1647 [2022-01-18 14:06:25,096 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-18 14:06:25,096 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 48 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:25,096 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 189 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:25,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1647 states. [2022-01-18 14:06:25,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1647 to 1463. [2022-01-18 14:06:25,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1463 states, 1462 states have (on average 3.1299589603283176) internal successors, (4576), 1462 states have internal predecessors, (4576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:25,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1463 states to 1463 states and 4576 transitions. [2022-01-18 14:06:25,126 INFO L78 Accepts]: Start accepts. Automaton has 1463 states and 4576 transitions. Word has length 26 [2022-01-18 14:06:25,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:25,126 INFO L470 AbstractCegarLoop]: Abstraction has 1463 states and 4576 transitions. [2022-01-18 14:06:25,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:25,126 INFO L276 IsEmpty]: Start isEmpty. Operand 1463 states and 4576 transitions. [2022-01-18 14:06:25,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:25,129 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:25,129 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:25,129 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-18 14:06:25,129 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:25,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:25,130 INFO L85 PathProgramCache]: Analyzing trace with hash -28751919, now seen corresponding path program 6 times [2022-01-18 14:06:25,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:25,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170670681] [2022-01-18 14:06:25,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:25,130 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:25,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:25,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:25,200 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:25,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170670681] [2022-01-18 14:06:25,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170670681] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:25,200 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:25,201 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:06:25,201 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976157103] [2022-01-18 14:06:25,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:25,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:06:25,201 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:25,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:06:25,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:25,202 INFO L87 Difference]: Start difference. First operand 1463 states and 4576 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:25,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:25,404 INFO L93 Difference]: Finished difference Result 1778 states and 5460 transitions. [2022-01-18 14:06:25,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:06:25,404 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:25,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:25,411 INFO L225 Difference]: With dead ends: 1778 [2022-01-18 14:06:25,411 INFO L226 Difference]: Without dead ends: 1649 [2022-01-18 14:06:25,412 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:25,412 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 51 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:25,412 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 223 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:25,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1649 states. [2022-01-18 14:06:25,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1649 to 1488. [2022-01-18 14:06:25,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1488 states, 1487 states have (on average 3.129791526563551) internal successors, (4654), 1487 states have internal predecessors, (4654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:25,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1488 states to 1488 states and 4654 transitions. [2022-01-18 14:06:25,442 INFO L78 Accepts]: Start accepts. Automaton has 1488 states and 4654 transitions. Word has length 26 [2022-01-18 14:06:25,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:25,442 INFO L470 AbstractCegarLoop]: Abstraction has 1488 states and 4654 transitions. [2022-01-18 14:06:25,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:25,442 INFO L276 IsEmpty]: Start isEmpty. Operand 1488 states and 4654 transitions. [2022-01-18 14:06:25,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:25,445 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:25,445 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:25,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-18 14:06:25,445 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:25,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:25,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1965052845, now seen corresponding path program 7 times [2022-01-18 14:06:25,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:25,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718869543] [2022-01-18 14:06:25,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:25,446 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:25,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:25,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:25,517 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:25,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718869543] [2022-01-18 14:06:25,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718869543] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:25,517 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:25,517 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:06:25,517 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658014298] [2022-01-18 14:06:25,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:25,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:06:25,518 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:25,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:06:25,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:25,518 INFO L87 Difference]: Start difference. First operand 1488 states and 4654 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:25,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:25,727 INFO L93 Difference]: Finished difference Result 1806 states and 5565 transitions. [2022-01-18 14:06:25,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:06:25,727 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:25,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:25,733 INFO L225 Difference]: With dead ends: 1806 [2022-01-18 14:06:25,734 INFO L226 Difference]: Without dead ends: 1647 [2022-01-18 14:06:25,734 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:25,734 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 56 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:25,734 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 225 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 581 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:25,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1647 states. [2022-01-18 14:06:25,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1647 to 1509. [2022-01-18 14:06:25,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1509 states, 1508 states have (on average 3.126657824933687) internal successors, (4715), 1508 states have internal predecessors, (4715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:25,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1509 states to 1509 states and 4715 transitions. [2022-01-18 14:06:25,775 INFO L78 Accepts]: Start accepts. Automaton has 1509 states and 4715 transitions. Word has length 26 [2022-01-18 14:06:25,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:25,775 INFO L470 AbstractCegarLoop]: Abstraction has 1509 states and 4715 transitions. [2022-01-18 14:06:25,775 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:25,776 INFO L276 IsEmpty]: Start isEmpty. Operand 1509 states and 4715 transitions. [2022-01-18 14:06:25,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:25,778 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:25,778 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:25,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-18 14:06:25,778 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:25,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:25,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1597680461, now seen corresponding path program 8 times [2022-01-18 14:06:25,779 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:25,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422915157] [2022-01-18 14:06:25,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:25,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:25,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:25,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:25,842 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:25,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422915157] [2022-01-18 14:06:25,843 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422915157] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:25,843 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:25,843 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:06:25,843 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711164814] [2022-01-18 14:06:25,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:25,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:06:25,843 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:25,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:06:25,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:25,844 INFO L87 Difference]: Start difference. First operand 1509 states and 4715 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:26,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:26,028 INFO L93 Difference]: Finished difference Result 1852 states and 5672 transitions. [2022-01-18 14:06:26,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:06:26,028 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:26,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:26,035 INFO L225 Difference]: With dead ends: 1852 [2022-01-18 14:06:26,035 INFO L226 Difference]: Without dead ends: 1713 [2022-01-18 14:06:26,036 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:26,036 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 50 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:26,036 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 225 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:26,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1713 states. [2022-01-18 14:06:26,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1713 to 1499. [2022-01-18 14:06:26,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1499 states, 1498 states have (on average 3.1275033377837116) internal successors, (4685), 1498 states have internal predecessors, (4685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:26,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1499 states to 1499 states and 4685 transitions. [2022-01-18 14:06:26,061 INFO L78 Accepts]: Start accepts. Automaton has 1499 states and 4685 transitions. Word has length 26 [2022-01-18 14:06:26,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:26,061 INFO L470 AbstractCegarLoop]: Abstraction has 1499 states and 4685 transitions. [2022-01-18 14:06:26,062 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:26,062 INFO L276 IsEmpty]: Start isEmpty. Operand 1499 states and 4685 transitions. [2022-01-18 14:06:26,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:26,065 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:26,065 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:26,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-18 14:06:26,065 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:26,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:26,065 INFO L85 PathProgramCache]: Analyzing trace with hash -637420907, now seen corresponding path program 9 times [2022-01-18 14:06:26,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:26,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018759581] [2022-01-18 14:06:26,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:26,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:26,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:26,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:26,125 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:26,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018759581] [2022-01-18 14:06:26,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018759581] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:26,125 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:26,125 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 14:06:26,125 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817366403] [2022-01-18 14:06:26,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:26,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 14:06:26,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:26,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 14:06:26,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-18 14:06:26,126 INFO L87 Difference]: Start difference. First operand 1499 states and 4685 transitions. Second operand has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:26,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:26,276 INFO L93 Difference]: Finished difference Result 1849 states and 5664 transitions. [2022-01-18 14:06:26,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 14:06:26,277 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:26,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:26,282 INFO L225 Difference]: With dead ends: 1849 [2022-01-18 14:06:26,282 INFO L226 Difference]: Without dead ends: 1708 [2022-01-18 14:06:26,282 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-18 14:06:26,283 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 48 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:26,283 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 189 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 14:06:26,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1708 states. [2022-01-18 14:06:26,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1708 to 1525. [2022-01-18 14:06:26,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1525 states, 1524 states have (on average 3.1266404199475066) internal successors, (4765), 1524 states have internal predecessors, (4765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:26,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1525 states to 1525 states and 4765 transitions. [2022-01-18 14:06:26,316 INFO L78 Accepts]: Start accepts. Automaton has 1525 states and 4765 transitions. Word has length 26 [2022-01-18 14:06:26,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:26,316 INFO L470 AbstractCegarLoop]: Abstraction has 1525 states and 4765 transitions. [2022-01-18 14:06:26,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:26,316 INFO L276 IsEmpty]: Start isEmpty. Operand 1525 states and 4765 transitions. [2022-01-18 14:06:26,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:26,319 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:26,319 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:26,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-18 14:06:26,319 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:26,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:26,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1721245463, now seen corresponding path program 10 times [2022-01-18 14:06:26,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:26,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102498103] [2022-01-18 14:06:26,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:26,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:26,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:26,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:26,402 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:26,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102498103] [2022-01-18 14:06:26,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102498103] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:26,402 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:26,402 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:06:26,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144347275] [2022-01-18 14:06:26,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:26,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:06:26,403 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:26,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:06:26,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:26,403 INFO L87 Difference]: Start difference. First operand 1525 states and 4765 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:26,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:26,608 INFO L93 Difference]: Finished difference Result 1932 states and 5906 transitions. [2022-01-18 14:06:26,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:06:26,608 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:26,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:26,613 INFO L225 Difference]: With dead ends: 1932 [2022-01-18 14:06:26,613 INFO L226 Difference]: Without dead ends: 1665 [2022-01-18 14:06:26,613 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:26,613 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 62 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:26,613 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 247 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 545 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:26,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1665 states. [2022-01-18 14:06:26,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1665 to 1415. [2022-01-18 14:06:26,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1415 states, 1414 states have (on average 3.0912305516265914) internal successors, (4371), 1414 states have internal predecessors, (4371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:26,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1415 states to 1415 states and 4371 transitions. [2022-01-18 14:06:26,640 INFO L78 Accepts]: Start accepts. Automaton has 1415 states and 4371 transitions. Word has length 26 [2022-01-18 14:06:26,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:26,641 INFO L470 AbstractCegarLoop]: Abstraction has 1415 states and 4371 transitions. [2022-01-18 14:06:26,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:26,641 INFO L276 IsEmpty]: Start isEmpty. Operand 1415 states and 4371 transitions. [2022-01-18 14:06:26,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:26,643 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:26,643 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:26,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-18 14:06:26,644 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:26,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:26,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1939805619, now seen corresponding path program 11 times [2022-01-18 14:06:26,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:26,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552489305] [2022-01-18 14:06:26,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:26,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:26,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:26,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:26,713 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:26,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552489305] [2022-01-18 14:06:26,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552489305] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:26,714 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:26,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:06:26,714 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220582491] [2022-01-18 14:06:26,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:26,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:06:26,714 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:26,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:06:26,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:26,715 INFO L87 Difference]: Start difference. First operand 1415 states and 4371 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:26,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:26,917 INFO L93 Difference]: Finished difference Result 1661 states and 5048 transitions. [2022-01-18 14:06:26,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:06:26,917 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:26,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:26,921 INFO L225 Difference]: With dead ends: 1661 [2022-01-18 14:06:26,921 INFO L226 Difference]: Without dead ends: 1528 [2022-01-18 14:06:26,921 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:26,922 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 50 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:26,922 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 225 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 518 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:26,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1528 states. [2022-01-18 14:06:26,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1528 to 1405. [2022-01-18 14:06:26,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1405 states, 1404 states have (on average 3.0868945868945867) internal successors, (4334), 1404 states have internal predecessors, (4334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:26,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1405 states to 1405 states and 4334 transitions. [2022-01-18 14:06:26,943 INFO L78 Accepts]: Start accepts. Automaton has 1405 states and 4334 transitions. Word has length 26 [2022-01-18 14:06:26,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:26,943 INFO L470 AbstractCegarLoop]: Abstraction has 1405 states and 4334 transitions. [2022-01-18 14:06:26,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:26,944 INFO L276 IsEmpty]: Start isEmpty. Operand 1405 states and 4334 transitions. [2022-01-18 14:06:26,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:26,946 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:26,946 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:26,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-18 14:06:26,946 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:26,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:26,947 INFO L85 PathProgramCache]: Analyzing trace with hash 3504693, now seen corresponding path program 12 times [2022-01-18 14:06:26,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:26,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364570514] [2022-01-18 14:06:26,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:26,947 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:26,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:27,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:27,009 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:27,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364570514] [2022-01-18 14:06:27,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364570514] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:27,009 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:27,009 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:06:27,009 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908316102] [2022-01-18 14:06:27,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:27,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:06:27,010 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:27,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:06:27,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:27,010 INFO L87 Difference]: Start difference. First operand 1405 states and 4334 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:27,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:27,213 INFO L93 Difference]: Finished difference Result 1871 states and 5674 transitions. [2022-01-18 14:06:27,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:06:27,214 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:27,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:27,218 INFO L225 Difference]: With dead ends: 1871 [2022-01-18 14:06:27,218 INFO L226 Difference]: Without dead ends: 1726 [2022-01-18 14:06:27,218 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:27,218 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 55 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:27,219 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 223 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 578 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:27,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1726 states. [2022-01-18 14:06:27,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1726 to 1433. [2022-01-18 14:06:27,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1433 states, 1432 states have (on average 3.0858938547486034) internal successors, (4419), 1432 states have internal predecessors, (4419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:27,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1433 states to 1433 states and 4419 transitions. [2022-01-18 14:06:27,242 INFO L78 Accepts]: Start accepts. Automaton has 1433 states and 4419 transitions. Word has length 26 [2022-01-18 14:06:27,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:27,243 INFO L470 AbstractCegarLoop]: Abstraction has 1433 states and 4419 transitions. [2022-01-18 14:06:27,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:27,243 INFO L276 IsEmpty]: Start isEmpty. Operand 1433 states and 4419 transitions. [2022-01-18 14:06:27,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:27,245 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:27,245 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:27,246 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-18 14:06:27,246 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:27,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:27,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1298986211, now seen corresponding path program 13 times [2022-01-18 14:06:27,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:27,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078411149] [2022-01-18 14:06:27,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:27,246 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:27,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:27,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:27,322 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:27,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078411149] [2022-01-18 14:06:27,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078411149] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:27,322 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:27,322 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:06:27,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139556286] [2022-01-18 14:06:27,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:27,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:06:27,322 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:27,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:06:27,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:27,323 INFO L87 Difference]: Start difference. First operand 1433 states and 4419 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:27,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:27,552 INFO L93 Difference]: Finished difference Result 1746 states and 5285 transitions. [2022-01-18 14:06:27,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:06:27,552 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:27,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:27,555 INFO L225 Difference]: With dead ends: 1746 [2022-01-18 14:06:27,556 INFO L226 Difference]: Without dead ends: 1561 [2022-01-18 14:06:27,557 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:27,557 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 55 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:27,557 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 225 Invalid, 582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:27,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1561 states. [2022-01-18 14:06:27,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1561 to 1389. [2022-01-18 14:06:27,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1389 states, 1388 states have (on average 3.0871757925072045) internal successors, (4285), 1388 states have internal predecessors, (4285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:27,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1389 states to 1389 states and 4285 transitions. [2022-01-18 14:06:27,578 INFO L78 Accepts]: Start accepts. Automaton has 1389 states and 4285 transitions. Word has length 26 [2022-01-18 14:06:27,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:27,579 INFO L470 AbstractCegarLoop]: Abstraction has 1389 states and 4285 transitions. [2022-01-18 14:06:27,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:27,579 INFO L276 IsEmpty]: Start isEmpty. Operand 1389 states and 4285 transitions. [2022-01-18 14:06:27,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:27,581 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:27,581 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:27,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-18 14:06:27,581 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:27,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:27,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1870208439, now seen corresponding path program 14 times [2022-01-18 14:06:27,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:27,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875048190] [2022-01-18 14:06:27,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:27,582 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:27,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:27,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:27,653 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:27,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875048190] [2022-01-18 14:06:27,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875048190] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:27,653 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:27,653 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:06:27,653 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988057627] [2022-01-18 14:06:27,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:27,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:06:27,653 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:27,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:06:27,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:27,654 INFO L87 Difference]: Start difference. First operand 1389 states and 4285 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:27,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:27,854 INFO L93 Difference]: Finished difference Result 1686 states and 5109 transitions. [2022-01-18 14:06:27,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:06:27,855 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:27,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:27,858 INFO L225 Difference]: With dead ends: 1686 [2022-01-18 14:06:27,858 INFO L226 Difference]: Without dead ends: 1511 [2022-01-18 14:06:27,858 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:27,859 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 62 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:27,859 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 248 Invalid, 574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 566 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:27,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1511 states. [2022-01-18 14:06:27,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1511 to 1339. [2022-01-18 14:06:27,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1339 states, 1338 states have (on average 3.0904334828101643) internal successors, (4135), 1338 states have internal predecessors, (4135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:27,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1339 states to 1339 states and 4135 transitions. [2022-01-18 14:06:27,879 INFO L78 Accepts]: Start accepts. Automaton has 1339 states and 4135 transitions. Word has length 26 [2022-01-18 14:06:27,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:27,879 INFO L470 AbstractCegarLoop]: Abstraction has 1339 states and 4135 transitions. [2022-01-18 14:06:27,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:27,879 INFO L276 IsEmpty]: Start isEmpty. Operand 1339 states and 4135 transitions. [2022-01-18 14:06:27,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:27,881 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:27,882 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:27,882 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-18 14:06:27,882 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:27,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:27,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1158883223, now seen corresponding path program 15 times [2022-01-18 14:06:27,882 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:27,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023830768] [2022-01-18 14:06:27,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:27,882 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:27,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:27,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:27,941 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:27,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023830768] [2022-01-18 14:06:27,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023830768] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:27,942 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:27,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:06:27,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678871869] [2022-01-18 14:06:27,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:27,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:06:27,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:27,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:06:27,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:27,942 INFO L87 Difference]: Start difference. First operand 1339 states and 4135 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:28,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:28,133 INFO L93 Difference]: Finished difference Result 1627 states and 4941 transitions. [2022-01-18 14:06:28,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:06:28,134 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:28,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:28,137 INFO L225 Difference]: With dead ends: 1627 [2022-01-18 14:06:28,137 INFO L226 Difference]: Without dead ends: 1462 [2022-01-18 14:06:28,137 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:28,137 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 54 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 569 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:28,137 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 227 Invalid, 577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 569 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:28,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1462 states. [2022-01-18 14:06:28,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1462 to 1322. [2022-01-18 14:06:28,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1322 states, 1321 states have (on average 3.093111279333838) internal successors, (4086), 1321 states have internal predecessors, (4086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:28,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1322 states to 1322 states and 4086 transitions. [2022-01-18 14:06:28,157 INFO L78 Accepts]: Start accepts. Automaton has 1322 states and 4086 transitions. Word has length 26 [2022-01-18 14:06:28,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:28,157 INFO L470 AbstractCegarLoop]: Abstraction has 1322 states and 4086 transitions. [2022-01-18 14:06:28,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:28,157 INFO L276 IsEmpty]: Start isEmpty. Operand 1322 states and 4086 transitions. [2022-01-18 14:06:28,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:28,159 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:28,159 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:28,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-18 14:06:28,159 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:28,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:28,160 INFO L85 PathProgramCache]: Analyzing trace with hash -410045319, now seen corresponding path program 16 times [2022-01-18 14:06:28,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:28,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386377006] [2022-01-18 14:06:28,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:28,160 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:28,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:28,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:28,217 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:28,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386377006] [2022-01-18 14:06:28,217 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386377006] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:28,217 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:28,217 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:06:28,217 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212879392] [2022-01-18 14:06:28,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:28,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:06:28,218 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:28,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:06:28,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:28,218 INFO L87 Difference]: Start difference. First operand 1322 states and 4086 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:28,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:28,424 INFO L93 Difference]: Finished difference Result 1728 states and 5256 transitions. [2022-01-18 14:06:28,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:06:28,424 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:28,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:28,427 INFO L225 Difference]: With dead ends: 1728 [2022-01-18 14:06:28,427 INFO L226 Difference]: Without dead ends: 1573 [2022-01-18 14:06:28,428 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:28,428 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 53 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:28,428 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 225 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 566 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:28,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1573 states. [2022-01-18 14:06:28,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1573 to 1301. [2022-01-18 14:06:28,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1301 states, 1300 states have (on average 3.0930769230769233) internal successors, (4021), 1300 states have internal predecessors, (4021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:28,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1301 states to 1301 states and 4021 transitions. [2022-01-18 14:06:28,449 INFO L78 Accepts]: Start accepts. Automaton has 1301 states and 4021 transitions. Word has length 26 [2022-01-18 14:06:28,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:28,449 INFO L470 AbstractCegarLoop]: Abstraction has 1301 states and 4021 transitions. [2022-01-18 14:06:28,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:28,449 INFO L276 IsEmpty]: Start isEmpty. Operand 1301 states and 4021 transitions. [2022-01-18 14:06:28,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:28,451 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:28,451 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:28,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-18 14:06:28,451 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:28,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:28,451 INFO L85 PathProgramCache]: Analyzing trace with hash -980053157, now seen corresponding path program 17 times [2022-01-18 14:06:28,451 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:28,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511130704] [2022-01-18 14:06:28,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:28,452 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:28,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:28,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:28,516 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:28,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511130704] [2022-01-18 14:06:28,516 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511130704] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:28,516 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:28,516 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:06:28,516 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631784406] [2022-01-18 14:06:28,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:28,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:06:28,516 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:28,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:06:28,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:28,516 INFO L87 Difference]: Start difference. First operand 1301 states and 4021 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:28,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:28,710 INFO L93 Difference]: Finished difference Result 1527 states and 4646 transitions. [2022-01-18 14:06:28,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:06:28,710 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:28,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:28,713 INFO L225 Difference]: With dead ends: 1527 [2022-01-18 14:06:28,713 INFO L226 Difference]: Without dead ends: 1316 [2022-01-18 14:06:28,713 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:28,714 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 53 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 562 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:28,714 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 227 Invalid, 570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 562 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:28,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1316 states. [2022-01-18 14:06:28,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1316 to 1138. [2022-01-18 14:06:28,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1138 states, 1137 states have (on average 3.1213720316622693) internal successors, (3549), 1137 states have internal predecessors, (3549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:28,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1138 states to 1138 states and 3549 transitions. [2022-01-18 14:06:28,731 INFO L78 Accepts]: Start accepts. Automaton has 1138 states and 3549 transitions. Word has length 26 [2022-01-18 14:06:28,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:28,731 INFO L470 AbstractCegarLoop]: Abstraction has 1138 states and 3549 transitions. [2022-01-18 14:06:28,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:28,731 INFO L276 IsEmpty]: Start isEmpty. Operand 1138 states and 3549 transitions. [2022-01-18 14:06:28,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:28,733 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:28,733 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:28,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-18 14:06:28,733 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:28,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:28,733 INFO L85 PathProgramCache]: Analyzing trace with hash -198491113, now seen corresponding path program 18 times [2022-01-18 14:06:28,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:28,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475416092] [2022-01-18 14:06:28,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:28,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:28,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:28,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:28,787 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:28,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475416092] [2022-01-18 14:06:28,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475416092] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:28,787 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:28,787 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 14:06:28,787 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057031748] [2022-01-18 14:06:28,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:28,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 14:06:28,787 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:28,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 14:06:28,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-18 14:06:28,788 INFO L87 Difference]: Start difference. First operand 1138 states and 3549 transitions. Second operand has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:28,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:28,938 INFO L93 Difference]: Finished difference Result 1698 states and 5175 transitions. [2022-01-18 14:06:28,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 14:06:28,938 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:28,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:28,941 INFO L225 Difference]: With dead ends: 1698 [2022-01-18 14:06:28,941 INFO L226 Difference]: Without dead ends: 1446 [2022-01-18 14:06:28,941 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-18 14:06:28,942 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 58 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:28,942 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 194 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 14:06:28,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1446 states. [2022-01-18 14:06:28,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1446 to 1252. [2022-01-18 14:06:28,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1252 states, 1251 states have (on average 3.079136690647482) internal successors, (3852), 1251 states have internal predecessors, (3852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:28,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1252 states to 1252 states and 3852 transitions. [2022-01-18 14:06:28,960 INFO L78 Accepts]: Start accepts. Automaton has 1252 states and 3852 transitions. Word has length 26 [2022-01-18 14:06:28,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:28,961 INFO L470 AbstractCegarLoop]: Abstraction has 1252 states and 3852 transitions. [2022-01-18 14:06:28,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:28,961 INFO L276 IsEmpty]: Start isEmpty. Operand 1252 states and 3852 transitions. [2022-01-18 14:06:28,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:28,963 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:28,963 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:28,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-18 14:06:28,963 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:28,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:28,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1980207065, now seen corresponding path program 19 times [2022-01-18 14:06:28,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:28,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421373513] [2022-01-18 14:06:28,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:28,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:28,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:29,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:29,019 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:29,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421373513] [2022-01-18 14:06:29,019 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421373513] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:29,019 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:29,019 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:06:29,020 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113778380] [2022-01-18 14:06:29,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:29,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:06:29,020 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:29,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:06:29,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:29,020 INFO L87 Difference]: Start difference. First operand 1252 states and 3852 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:29,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:29,221 INFO L93 Difference]: Finished difference Result 1559 states and 4705 transitions. [2022-01-18 14:06:29,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:06:29,221 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:29,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:29,224 INFO L225 Difference]: With dead ends: 1559 [2022-01-18 14:06:29,224 INFO L226 Difference]: Without dead ends: 1310 [2022-01-18 14:06:29,224 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:29,224 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 64 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 572 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:29,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 244 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 572 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:29,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1310 states. [2022-01-18 14:06:29,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1310 to 1106. [2022-01-18 14:06:29,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1106 states, 1105 states have (on average 3.08868778280543) internal successors, (3413), 1105 states have internal predecessors, (3413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:29,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1106 states to 1106 states and 3413 transitions. [2022-01-18 14:06:29,240 INFO L78 Accepts]: Start accepts. Automaton has 1106 states and 3413 transitions. Word has length 26 [2022-01-18 14:06:29,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:29,240 INFO L470 AbstractCegarLoop]: Abstraction has 1106 states and 3413 transitions. [2022-01-18 14:06:29,241 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:29,241 INFO L276 IsEmpty]: Start isEmpty. Operand 1106 states and 3413 transitions. [2022-01-18 14:06:29,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:29,242 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:29,242 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:29,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-18 14:06:29,242 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:29,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:29,243 INFO L85 PathProgramCache]: Analyzing trace with hash -2108554859, now seen corresponding path program 20 times [2022-01-18 14:06:29,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:29,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643778647] [2022-01-18 14:06:29,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:29,243 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:29,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:29,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:29,303 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:29,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643778647] [2022-01-18 14:06:29,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643778647] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:29,303 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:29,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:06:29,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474167258] [2022-01-18 14:06:29,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:29,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:06:29,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:29,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:06:29,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:29,304 INFO L87 Difference]: Start difference. First operand 1106 states and 3413 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:29,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:29,492 INFO L93 Difference]: Finished difference Result 1455 states and 4380 transitions. [2022-01-18 14:06:29,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:06:29,492 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:29,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:29,494 INFO L225 Difference]: With dead ends: 1455 [2022-01-18 14:06:29,494 INFO L226 Difference]: Without dead ends: 1268 [2022-01-18 14:06:29,494 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:29,495 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 64 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:29,495 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 247 Invalid, 586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 578 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:29,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1268 states. [2022-01-18 14:06:29,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1268 to 1116. [2022-01-18 14:06:29,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1116 states, 1115 states have (on average 3.077130044843049) internal successors, (3431), 1115 states have internal predecessors, (3431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:29,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 3431 transitions. [2022-01-18 14:06:29,510 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 3431 transitions. Word has length 26 [2022-01-18 14:06:29,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:29,510 INFO L470 AbstractCegarLoop]: Abstraction has 1116 states and 3431 transitions. [2022-01-18 14:06:29,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:29,510 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 3431 transitions. [2022-01-18 14:06:29,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:29,512 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:29,512 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:29,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-18 14:06:29,512 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:29,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:29,513 INFO L85 PathProgramCache]: Analyzing trace with hash 70143319, now seen corresponding path program 21 times [2022-01-18 14:06:29,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:29,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064657636] [2022-01-18 14:06:29,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:29,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:29,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:29,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:29,576 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:29,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064657636] [2022-01-18 14:06:29,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064657636] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:29,576 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:29,576 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:29,576 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043025002] [2022-01-18 14:06:29,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:29,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:29,577 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:29,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:29,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:29,577 INFO L87 Difference]: Start difference. First operand 1116 states and 3431 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:29,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:29,810 INFO L93 Difference]: Finished difference Result 1381 states and 4160 transitions. [2022-01-18 14:06:29,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:29,811 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:29,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:29,813 INFO L225 Difference]: With dead ends: 1381 [2022-01-18 14:06:29,813 INFO L226 Difference]: Without dead ends: 1226 [2022-01-18 14:06:29,813 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:29,814 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 69 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 708 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:29,814 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 303 Invalid, 720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 708 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:29,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1226 states. [2022-01-18 14:06:29,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1226 to 1090. [2022-01-18 14:06:29,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1090 states, 1089 states have (on average 3.0899908172635446) internal successors, (3365), 1089 states have internal predecessors, (3365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:29,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1090 states to 1090 states and 3365 transitions. [2022-01-18 14:06:29,829 INFO L78 Accepts]: Start accepts. Automaton has 1090 states and 3365 transitions. Word has length 26 [2022-01-18 14:06:29,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:29,829 INFO L470 AbstractCegarLoop]: Abstraction has 1090 states and 3365 transitions. [2022-01-18 14:06:29,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:29,829 INFO L276 IsEmpty]: Start isEmpty. Operand 1090 states and 3365 transitions. [2022-01-18 14:06:29,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:29,831 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:29,831 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:29,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-18 14:06:29,831 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:29,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:29,831 INFO L85 PathProgramCache]: Analyzing trace with hash 549787923, now seen corresponding path program 22 times [2022-01-18 14:06:29,831 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:29,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195976998] [2022-01-18 14:06:29,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:29,832 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:29,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:29,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:29,891 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:29,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195976998] [2022-01-18 14:06:29,891 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195976998] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:29,891 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:29,891 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:06:29,892 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662874677] [2022-01-18 14:06:29,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:29,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:06:29,892 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:29,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:06:29,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:29,892 INFO L87 Difference]: Start difference. First operand 1090 states and 3365 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:30,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:30,065 INFO L93 Difference]: Finished difference Result 1426 states and 4315 transitions. [2022-01-18 14:06:30,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:06:30,066 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:30,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:30,068 INFO L225 Difference]: With dead ends: 1426 [2022-01-18 14:06:30,068 INFO L226 Difference]: Without dead ends: 1303 [2022-01-18 14:06:30,069 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:30,069 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 55 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:30,069 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 241 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 514 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:30,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1303 states. [2022-01-18 14:06:30,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1303 to 1149. [2022-01-18 14:06:30,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1149 states, 1148 states have (on average 3.0888501742160277) internal successors, (3546), 1148 states have internal predecessors, (3546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:30,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1149 states to 1149 states and 3546 transitions. [2022-01-18 14:06:30,085 INFO L78 Accepts]: Start accepts. Automaton has 1149 states and 3546 transitions. Word has length 26 [2022-01-18 14:06:30,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:30,085 INFO L470 AbstractCegarLoop]: Abstraction has 1149 states and 3546 transitions. [2022-01-18 14:06:30,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:30,085 INFO L276 IsEmpty]: Start isEmpty. Operand 1149 states and 3546 transitions. [2022-01-18 14:06:30,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:30,086 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:30,087 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:30,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-18 14:06:30,087 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:30,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:30,087 INFO L85 PathProgramCache]: Analyzing trace with hash -161537293, now seen corresponding path program 23 times [2022-01-18 14:06:30,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:30,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850184260] [2022-01-18 14:06:30,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:30,087 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:30,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:30,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:30,155 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:30,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850184260] [2022-01-18 14:06:30,156 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850184260] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:30,156 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:30,156 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:30,156 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817026828] [2022-01-18 14:06:30,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:30,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:30,156 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:30,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:30,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:30,156 INFO L87 Difference]: Start difference. First operand 1149 states and 3546 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:30,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:30,371 INFO L93 Difference]: Finished difference Result 1438 states and 4359 transitions. [2022-01-18 14:06:30,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:30,371 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:30,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:30,373 INFO L225 Difference]: With dead ends: 1438 [2022-01-18 14:06:30,373 INFO L226 Difference]: Without dead ends: 1327 [2022-01-18 14:06:30,373 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:30,374 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 58 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:30,374 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 276 Invalid, 675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 665 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:30,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1327 states. [2022-01-18 14:06:30,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1327 to 1164. [2022-01-18 14:06:30,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1164 states, 1163 states have (on average 3.0885640584694753) internal successors, (3592), 1163 states have internal predecessors, (3592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:30,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1164 states to 1164 states and 3592 transitions. [2022-01-18 14:06:30,389 INFO L78 Accepts]: Start accepts. Automaton has 1164 states and 3592 transitions. Word has length 26 [2022-01-18 14:06:30,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:30,389 INFO L470 AbstractCegarLoop]: Abstraction has 1164 states and 3592 transitions. [2022-01-18 14:06:30,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:30,389 INFO L276 IsEmpty]: Start isEmpty. Operand 1164 states and 3592 transitions. [2022-01-18 14:06:30,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:30,391 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:30,391 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:30,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-18 14:06:30,391 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:30,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:30,392 INFO L85 PathProgramCache]: Analyzing trace with hash -2097838219, now seen corresponding path program 24 times [2022-01-18 14:06:30,392 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:30,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533814471] [2022-01-18 14:06:30,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:30,392 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:30,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:30,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:30,458 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:30,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533814471] [2022-01-18 14:06:30,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533814471] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:30,458 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:30,458 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:30,458 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574787821] [2022-01-18 14:06:30,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:30,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:30,458 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:30,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:30,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:30,459 INFO L87 Difference]: Start difference. First operand 1164 states and 3592 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:30,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:30,692 INFO L93 Difference]: Finished difference Result 1343 states and 4063 transitions. [2022-01-18 14:06:30,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:30,707 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:30,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:30,709 INFO L225 Difference]: With dead ends: 1343 [2022-01-18 14:06:30,709 INFO L226 Difference]: Without dead ends: 1209 [2022-01-18 14:06:30,710 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:30,711 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 63 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 725 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:30,713 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 278 Invalid, 737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 725 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:30,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1209 states. [2022-01-18 14:06:30,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1209 to 1153. [2022-01-18 14:06:30,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1153 states, 1152 states have (on average 3.087673611111111) internal successors, (3557), 1152 states have internal predecessors, (3557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:30,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1153 states to 1153 states and 3557 transitions. [2022-01-18 14:06:30,729 INFO L78 Accepts]: Start accepts. Automaton has 1153 states and 3557 transitions. Word has length 26 [2022-01-18 14:06:30,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:30,729 INFO L470 AbstractCegarLoop]: Abstraction has 1153 states and 3557 transitions. [2022-01-18 14:06:30,729 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:30,730 INFO L276 IsEmpty]: Start isEmpty. Operand 1153 states and 3557 transitions. [2022-01-18 14:06:30,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:30,731 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:30,731 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:30,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-18 14:06:30,732 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:30,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:30,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1730465835, now seen corresponding path program 25 times [2022-01-18 14:06:30,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:30,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000720687] [2022-01-18 14:06:30,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:30,732 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:30,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:30,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:30,809 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:30,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000720687] [2022-01-18 14:06:30,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000720687] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:30,810 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:30,810 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:30,810 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859461569] [2022-01-18 14:06:30,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:30,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:30,810 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:30,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:30,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:30,810 INFO L87 Difference]: Start difference. First operand 1153 states and 3557 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:31,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:31,021 INFO L93 Difference]: Finished difference Result 1431 states and 4320 transitions. [2022-01-18 14:06:31,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:31,021 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:31,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:31,026 INFO L225 Difference]: With dead ends: 1431 [2022-01-18 14:06:31,026 INFO L226 Difference]: Without dead ends: 1310 [2022-01-18 14:06:31,026 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:31,027 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 57 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:31,027 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 280 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 627 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:31,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1310 states. [2022-01-18 14:06:31,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1310 to 1143. [2022-01-18 14:06:31,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1143 states, 1142 states have (on average 3.088441330998249) internal successors, (3527), 1142 states have internal predecessors, (3527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:31,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1143 states to 1143 states and 3527 transitions. [2022-01-18 14:06:31,041 INFO L78 Accepts]: Start accepts. Automaton has 1143 states and 3527 transitions. Word has length 26 [2022-01-18 14:06:31,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:31,041 INFO L470 AbstractCegarLoop]: Abstraction has 1143 states and 3527 transitions. [2022-01-18 14:06:31,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:31,041 INFO L276 IsEmpty]: Start isEmpty. Operand 1143 states and 3527 transitions. [2022-01-18 14:06:31,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:31,043 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:31,043 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:31,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-18 14:06:31,043 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:31,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:31,043 INFO L85 PathProgramCache]: Analyzing trace with hash -770206281, now seen corresponding path program 26 times [2022-01-18 14:06:31,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:31,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739793777] [2022-01-18 14:06:31,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:31,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:31,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:31,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:31,100 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:31,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739793777] [2022-01-18 14:06:31,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739793777] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:31,100 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:31,100 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:06:31,100 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024048650] [2022-01-18 14:06:31,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:31,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:06:31,100 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:31,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:06:31,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:31,101 INFO L87 Difference]: Start difference. First operand 1143 states and 3527 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:31,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:31,285 INFO L93 Difference]: Finished difference Result 1389 states and 4203 transitions. [2022-01-18 14:06:31,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:06:31,285 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:31,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:31,287 INFO L225 Difference]: With dead ends: 1389 [2022-01-18 14:06:31,287 INFO L226 Difference]: Without dead ends: 1278 [2022-01-18 14:06:31,287 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:31,287 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 55 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:31,288 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 239 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 516 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:31,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1278 states. [2022-01-18 14:06:31,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1278 to 1180. [2022-01-18 14:06:31,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1180 states, 1179 states have (on average 3.082273112807464) internal successors, (3634), 1179 states have internal predecessors, (3634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:31,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1180 states to 1180 states and 3634 transitions. [2022-01-18 14:06:31,303 INFO L78 Accepts]: Start accepts. Automaton has 1180 states and 3634 transitions. Word has length 26 [2022-01-18 14:06:31,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:31,303 INFO L470 AbstractCegarLoop]: Abstraction has 1180 states and 3634 transitions. [2022-01-18 14:06:31,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:31,303 INFO L276 IsEmpty]: Start isEmpty. Operand 1180 states and 3634 transitions. [2022-01-18 14:06:31,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:31,305 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:31,305 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:31,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-18 14:06:31,305 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:31,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:31,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1588460089, now seen corresponding path program 27 times [2022-01-18 14:06:31,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:31,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795250622] [2022-01-18 14:06:31,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:31,305 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:31,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:31,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:31,368 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:31,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795250622] [2022-01-18 14:06:31,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795250622] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:31,368 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:31,368 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:31,368 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837260147] [2022-01-18 14:06:31,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:31,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:31,369 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:31,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:31,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:31,369 INFO L87 Difference]: Start difference. First operand 1180 states and 3634 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:31,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:31,583 INFO L93 Difference]: Finished difference Result 1506 states and 4529 transitions. [2022-01-18 14:06:31,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:31,584 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:31,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:31,586 INFO L225 Difference]: With dead ends: 1506 [2022-01-18 14:06:31,586 INFO L226 Difference]: Without dead ends: 1281 [2022-01-18 14:06:31,586 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:31,586 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 69 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 684 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:31,587 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 303 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 684 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:31,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1281 states. [2022-01-18 14:06:31,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1281 to 1143. [2022-01-18 14:06:31,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1143 states, 1142 states have (on average 3.0674255691768826) internal successors, (3503), 1142 states have internal predecessors, (3503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:31,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1143 states to 1143 states and 3503 transitions. [2022-01-18 14:06:31,601 INFO L78 Accepts]: Start accepts. Automaton has 1143 states and 3503 transitions. Word has length 26 [2022-01-18 14:06:31,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:31,601 INFO L470 AbstractCegarLoop]: Abstraction has 1143 states and 3503 transitions. [2022-01-18 14:06:31,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:31,601 INFO L276 IsEmpty]: Start isEmpty. Operand 1143 states and 3503 transitions. [2022-01-18 14:06:31,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:31,603 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:31,603 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:31,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-18 14:06:31,603 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:31,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:31,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1807020245, now seen corresponding path program 28 times [2022-01-18 14:06:31,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:31,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932388479] [2022-01-18 14:06:31,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:31,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:31,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:31,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:31,681 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:31,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932388479] [2022-01-18 14:06:31,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932388479] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:31,681 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:31,681 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:31,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204587817] [2022-01-18 14:06:31,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:31,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:31,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:31,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:31,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:31,682 INFO L87 Difference]: Start difference. First operand 1143 states and 3503 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:31,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:31,905 INFO L93 Difference]: Finished difference Result 1303 states and 3927 transitions. [2022-01-18 14:06:31,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:31,905 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:31,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:31,907 INFO L225 Difference]: With dead ends: 1303 [2022-01-18 14:06:31,907 INFO L226 Difference]: Without dead ends: 1192 [2022-01-18 14:06:31,907 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:31,908 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 57 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 653 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:31,908 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 278 Invalid, 665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 653 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:31,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1192 states. [2022-01-18 14:06:31,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1192 to 1154. [2022-01-18 14:06:31,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1154 states, 1153 states have (on average 3.065047701647875) internal successors, (3534), 1153 states have internal predecessors, (3534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:31,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1154 states to 1154 states and 3534 transitions. [2022-01-18 14:06:31,922 INFO L78 Accepts]: Start accepts. Automaton has 1154 states and 3534 transitions. Word has length 26 [2022-01-18 14:06:31,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:31,922 INFO L470 AbstractCegarLoop]: Abstraction has 1154 states and 3534 transitions. [2022-01-18 14:06:31,922 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:31,922 INFO L276 IsEmpty]: Start isEmpty. Operand 1154 states and 3534 transitions. [2022-01-18 14:06:31,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:31,924 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:31,924 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:31,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-18 14:06:31,924 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:31,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:31,924 INFO L85 PathProgramCache]: Analyzing trace with hash -129280681, now seen corresponding path program 29 times [2022-01-18 14:06:31,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:31,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932919792] [2022-01-18 14:06:31,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:31,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:31,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:31,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:31,988 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:31,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932919792] [2022-01-18 14:06:31,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932919792] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:31,988 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:31,988 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:31,988 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203204233] [2022-01-18 14:06:31,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:31,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:31,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:31,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:31,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:31,989 INFO L87 Difference]: Start difference. First operand 1154 states and 3534 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:32,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:32,213 INFO L93 Difference]: Finished difference Result 1496 states and 4503 transitions. [2022-01-18 14:06:32,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:32,214 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:32,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:32,216 INFO L225 Difference]: With dead ends: 1496 [2022-01-18 14:06:32,216 INFO L226 Difference]: Without dead ends: 1369 [2022-01-18 14:06:32,216 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:32,216 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 62 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 721 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:32,216 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 276 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 721 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:32,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1369 states. [2022-01-18 14:06:32,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1369 to 1143. [2022-01-18 14:06:32,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1143 states, 1142 states have (on average 3.0656742556917687) internal successors, (3501), 1142 states have internal predecessors, (3501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:32,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1143 states to 1143 states and 3501 transitions. [2022-01-18 14:06:32,231 INFO L78 Accepts]: Start accepts. Automaton has 1143 states and 3501 transitions. Word has length 26 [2022-01-18 14:06:32,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:32,231 INFO L470 AbstractCegarLoop]: Abstraction has 1143 states and 3501 transitions. [2022-01-18 14:06:32,231 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:32,231 INFO L276 IsEmpty]: Start isEmpty. Operand 1143 states and 3501 transitions. [2022-01-18 14:06:32,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:32,232 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:32,232 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:32,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-18 14:06:32,233 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:32,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:32,233 INFO L85 PathProgramCache]: Analyzing trace with hash -1431771585, now seen corresponding path program 30 times [2022-01-18 14:06:32,233 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:32,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513661481] [2022-01-18 14:06:32,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:32,233 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:32,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:32,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:32,307 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:32,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513661481] [2022-01-18 14:06:32,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513661481] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:32,308 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:32,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:32,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050775042] [2022-01-18 14:06:32,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:32,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:32,308 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:32,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:32,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:32,309 INFO L87 Difference]: Start difference. First operand 1143 states and 3501 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:32,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:32,549 INFO L93 Difference]: Finished difference Result 1406 states and 4227 transitions. [2022-01-18 14:06:32,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:32,549 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:32,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:32,551 INFO L225 Difference]: With dead ends: 1406 [2022-01-18 14:06:32,551 INFO L226 Difference]: Without dead ends: 1239 [2022-01-18 14:06:32,552 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:32,552 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 62 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 715 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 715 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:32,552 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 280 Invalid, 727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 715 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:32,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1239 states. [2022-01-18 14:06:32,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1239 to 1113. [2022-01-18 14:06:32,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1113 states, 1112 states have (on average 3.085431654676259) internal successors, (3431), 1112 states have internal predecessors, (3431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:32,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1113 states to 1113 states and 3431 transitions. [2022-01-18 14:06:32,567 INFO L78 Accepts]: Start accepts. Automaton has 1113 states and 3431 transitions. Word has length 26 [2022-01-18 14:06:32,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:32,568 INFO L470 AbstractCegarLoop]: Abstraction has 1113 states and 3431 transitions. [2022-01-18 14:06:32,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:32,571 INFO L276 IsEmpty]: Start isEmpty. Operand 1113 states and 3431 transitions. [2022-01-18 14:06:32,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:32,572 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:32,572 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:32,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-18 14:06:32,573 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:32,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:32,573 INFO L85 PathProgramCache]: Analyzing trace with hash -269593419, now seen corresponding path program 31 times [2022-01-18 14:06:32,573 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:32,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065037206] [2022-01-18 14:06:32,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:32,573 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:32,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:32,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:32,624 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:32,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065037206] [2022-01-18 14:06:32,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065037206] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:32,624 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:32,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 14:06:32,624 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448352739] [2022-01-18 14:06:32,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:32,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 14:06:32,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:32,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 14:06:32,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-18 14:06:32,625 INFO L87 Difference]: Start difference. First operand 1113 states and 3431 transitions. Second operand has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:32,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:32,784 INFO L93 Difference]: Finished difference Result 1453 states and 4359 transitions. [2022-01-18 14:06:32,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 14:06:32,784 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:32,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:32,786 INFO L225 Difference]: With dead ends: 1453 [2022-01-18 14:06:32,786 INFO L226 Difference]: Without dead ends: 1292 [2022-01-18 14:06:32,786 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-18 14:06:32,787 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 55 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:32,787 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 197 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:32,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1292 states. [2022-01-18 14:06:32,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1292 to 1206. [2022-01-18 14:06:32,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1206 states, 1205 states have (on average 3.0539419087136928) internal successors, (3680), 1205 states have internal predecessors, (3680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:32,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1206 states to 1206 states and 3680 transitions. [2022-01-18 14:06:32,814 INFO L78 Accepts]: Start accepts. Automaton has 1206 states and 3680 transitions. Word has length 26 [2022-01-18 14:06:32,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:32,814 INFO L470 AbstractCegarLoop]: Abstraction has 1206 states and 3680 transitions. [2022-01-18 14:06:32,814 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:32,814 INFO L276 IsEmpty]: Start isEmpty. Operand 1206 states and 3680 transitions. [2022-01-18 14:06:32,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:32,816 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:32,816 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:32,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-18 14:06:32,816 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:32,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:32,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1909104759, now seen corresponding path program 32 times [2022-01-18 14:06:32,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:32,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828542352] [2022-01-18 14:06:32,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:32,817 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:32,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:32,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:32,880 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:32,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828542352] [2022-01-18 14:06:32,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828542352] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:32,880 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:32,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:06:32,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185763990] [2022-01-18 14:06:32,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:32,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:06:32,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:32,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:06:32,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:32,881 INFO L87 Difference]: Start difference. First operand 1206 states and 3680 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:33,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:33,084 INFO L93 Difference]: Finished difference Result 1409 states and 4234 transitions. [2022-01-18 14:06:33,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:06:33,084 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:33,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:33,086 INFO L225 Difference]: With dead ends: 1409 [2022-01-18 14:06:33,086 INFO L226 Difference]: Without dead ends: 1286 [2022-01-18 14:06:33,086 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:33,087 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 59 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:33,087 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 248 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:33,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1286 states. [2022-01-18 14:06:33,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1286 to 1180. [2022-01-18 14:06:33,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1180 states, 1179 states have (on average 3.063613231552163) internal successors, (3612), 1179 states have internal predecessors, (3612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:33,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1180 states to 1180 states and 3612 transitions. [2022-01-18 14:06:33,101 INFO L78 Accepts]: Start accepts. Automaton has 1180 states and 3612 transitions. Word has length 26 [2022-01-18 14:06:33,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:33,102 INFO L470 AbstractCegarLoop]: Abstraction has 1180 states and 3612 transitions. [2022-01-18 14:06:33,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:33,102 INFO L276 IsEmpty]: Start isEmpty. Operand 1180 states and 3612 transitions. [2022-01-18 14:06:33,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:33,103 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:33,103 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:33,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-18 14:06:33,104 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:33,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:33,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1778640983, now seen corresponding path program 33 times [2022-01-18 14:06:33,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:33,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959631109] [2022-01-18 14:06:33,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:33,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:33,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:33,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:33,152 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:33,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959631109] [2022-01-18 14:06:33,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959631109] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:33,152 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:33,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 14:06:33,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669345504] [2022-01-18 14:06:33,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:33,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 14:06:33,153 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:33,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 14:06:33,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-18 14:06:33,153 INFO L87 Difference]: Start difference. First operand 1180 states and 3612 transitions. Second operand has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:33,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:33,289 INFO L93 Difference]: Finished difference Result 1516 states and 4589 transitions. [2022-01-18 14:06:33,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 14:06:33,289 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:33,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:33,291 INFO L225 Difference]: With dead ends: 1516 [2022-01-18 14:06:33,291 INFO L226 Difference]: Without dead ends: 1419 [2022-01-18 14:06:33,291 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-18 14:06:33,292 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 47 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:33,292 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 186 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 14:06:33,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1419 states. [2022-01-18 14:06:33,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1419 to 1247. [2022-01-18 14:06:33,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1247 states, 1246 states have (on average 3.0698234349919744) internal successors, (3825), 1246 states have internal predecessors, (3825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:33,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1247 states to 1247 states and 3825 transitions. [2022-01-18 14:06:33,306 INFO L78 Accepts]: Start accepts. Automaton has 1247 states and 3825 transitions. Word has length 26 [2022-01-18 14:06:33,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:33,306 INFO L470 AbstractCegarLoop]: Abstraction has 1247 states and 3825 transitions. [2022-01-18 14:06:33,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:33,306 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states and 3825 transitions. [2022-01-18 14:06:33,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:33,320 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:33,320 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:33,321 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-18 14:06:33,321 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:33,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:33,321 INFO L85 PathProgramCache]: Analyzing trace with hash -2016900199, now seen corresponding path program 34 times [2022-01-18 14:06:33,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:33,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122059551] [2022-01-18 14:06:33,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:33,321 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:33,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:33,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:33,381 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:33,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122059551] [2022-01-18 14:06:33,381 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122059551] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:33,381 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:33,381 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:06:33,381 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348813732] [2022-01-18 14:06:33,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:33,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:06:33,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:33,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:06:33,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:33,382 INFO L87 Difference]: Start difference. First operand 1247 states and 3825 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:33,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:33,573 INFO L93 Difference]: Finished difference Result 1463 states and 4440 transitions. [2022-01-18 14:06:33,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:06:33,573 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:33,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:33,575 INFO L225 Difference]: With dead ends: 1463 [2022-01-18 14:06:33,575 INFO L226 Difference]: Without dead ends: 1384 [2022-01-18 14:06:33,575 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:33,576 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 50 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 571 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:33,576 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 227 Invalid, 577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 571 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:33,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1384 states. [2022-01-18 14:06:33,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1384 to 1263. [2022-01-18 14:06:33,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1263 states, 1262 states have (on average 3.0705229793977815) internal successors, (3875), 1262 states have internal predecessors, (3875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:33,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1263 states to 1263 states and 3875 transitions. [2022-01-18 14:06:33,590 INFO L78 Accepts]: Start accepts. Automaton has 1263 states and 3875 transitions. Word has length 26 [2022-01-18 14:06:33,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:33,590 INFO L470 AbstractCegarLoop]: Abstraction has 1263 states and 3875 transitions. [2022-01-18 14:06:33,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:33,590 INFO L276 IsEmpty]: Start isEmpty. Operand 1263 states and 3875 transitions. [2022-01-18 14:06:33,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:33,592 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:33,592 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:33,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-18 14:06:33,593 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:33,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:33,593 INFO L85 PathProgramCache]: Analyzing trace with hash 566725593, now seen corresponding path program 35 times [2022-01-18 14:06:33,593 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:33,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672652690] [2022-01-18 14:06:33,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:33,593 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:33,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:33,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:33,647 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:33,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672652690] [2022-01-18 14:06:33,647 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672652690] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:33,647 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:33,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:06:33,647 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200248142] [2022-01-18 14:06:33,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:33,647 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:06:33,647 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:33,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:06:33,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:33,647 INFO L87 Difference]: Start difference. First operand 1263 states and 3875 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:33,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:33,845 INFO L93 Difference]: Finished difference Result 1486 states and 4488 transitions. [2022-01-18 14:06:33,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:06:33,845 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:33,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:33,848 INFO L225 Difference]: With dead ends: 1486 [2022-01-18 14:06:33,848 INFO L226 Difference]: Without dead ends: 1382 [2022-01-18 14:06:33,848 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:33,848 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 55 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:33,848 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 228 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 608 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:33,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1382 states. [2022-01-18 14:06:33,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1382 to 1252. [2022-01-18 14:06:33,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1252 states, 1251 states have (on average 3.0679456434852117) internal successors, (3838), 1251 states have internal predecessors, (3838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:33,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1252 states to 1252 states and 3838 transitions. [2022-01-18 14:06:33,862 INFO L78 Accepts]: Start accepts. Automaton has 1252 states and 3838 transitions. Word has length 26 [2022-01-18 14:06:33,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:33,863 INFO L470 AbstractCegarLoop]: Abstraction has 1252 states and 3838 transitions. [2022-01-18 14:06:33,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:33,863 INFO L276 IsEmpty]: Start isEmpty. Operand 1252 states and 3838 transitions. [2022-01-18 14:06:33,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:33,864 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:33,864 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:33,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-18 14:06:33,865 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:33,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:33,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1096324233, now seen corresponding path program 36 times [2022-01-18 14:06:33,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:33,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274108518] [2022-01-18 14:06:33,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:33,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:33,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:33,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:33,929 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:33,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274108518] [2022-01-18 14:06:33,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274108518] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:33,929 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:33,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:06:33,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813017085] [2022-01-18 14:06:33,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:33,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:06:33,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:33,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:06:33,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:33,931 INFO L87 Difference]: Start difference. First operand 1252 states and 3838 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:34,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:34,104 INFO L93 Difference]: Finished difference Result 1521 states and 4598 transitions. [2022-01-18 14:06:34,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:06:34,104 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:34,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:34,106 INFO L225 Difference]: With dead ends: 1521 [2022-01-18 14:06:34,106 INFO L226 Difference]: Without dead ends: 1427 [2022-01-18 14:06:34,106 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:34,107 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 50 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:34,107 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 222 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:34,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1427 states. [2022-01-18 14:06:34,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1427 to 1240. [2022-01-18 14:06:34,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1240 states, 1239 states have (on average 3.069410815173527) internal successors, (3803), 1239 states have internal predecessors, (3803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:34,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1240 states to 1240 states and 3803 transitions. [2022-01-18 14:06:34,122 INFO L78 Accepts]: Start accepts. Automaton has 1240 states and 3803 transitions. Word has length 26 [2022-01-18 14:06:34,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:34,122 INFO L470 AbstractCegarLoop]: Abstraction has 1240 states and 3803 transitions. [2022-01-18 14:06:34,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:34,122 INFO L276 IsEmpty]: Start isEmpty. Operand 1240 states and 3803 transitions. [2022-01-18 14:06:34,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:34,123 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:34,124 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:34,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-18 14:06:34,124 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:34,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:34,124 INFO L85 PathProgramCache]: Analyzing trace with hash 2138397041, now seen corresponding path program 37 times [2022-01-18 14:06:34,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:34,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768934664] [2022-01-18 14:06:34,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:34,124 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:34,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:34,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:34,171 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:34,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768934664] [2022-01-18 14:06:34,171 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768934664] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:34,171 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:34,171 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 14:06:34,171 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737846380] [2022-01-18 14:06:34,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:34,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 14:06:34,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:34,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 14:06:34,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-18 14:06:34,172 INFO L87 Difference]: Start difference. First operand 1240 states and 3803 transitions. Second operand has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:34,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:34,314 INFO L93 Difference]: Finished difference Result 1472 states and 4446 transitions. [2022-01-18 14:06:34,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 14:06:34,314 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:34,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:34,317 INFO L225 Difference]: With dead ends: 1472 [2022-01-18 14:06:34,317 INFO L226 Difference]: Without dead ends: 1393 [2022-01-18 14:06:34,317 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-18 14:06:34,317 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 45 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:34,317 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 184 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 14:06:34,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1393 states. [2022-01-18 14:06:34,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1393 to 1277. [2022-01-18 14:06:34,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1277 states, 1276 states have (on average 3.0642633228840124) internal successors, (3910), 1276 states have internal predecessors, (3910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:34,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1277 states to 1277 states and 3910 transitions. [2022-01-18 14:06:34,332 INFO L78 Accepts]: Start accepts. Automaton has 1277 states and 3910 transitions. Word has length 26 [2022-01-18 14:06:34,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:34,332 INFO L470 AbstractCegarLoop]: Abstraction has 1277 states and 3910 transitions. [2022-01-18 14:06:34,332 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:34,332 INFO L276 IsEmpty]: Start isEmpty. Operand 1277 states and 3910 transitions. [2022-01-18 14:06:34,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:34,341 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:34,341 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:34,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-18 14:06:34,342 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:34,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:34,342 INFO L85 PathProgramCache]: Analyzing trace with hash 427055537, now seen corresponding path program 38 times [2022-01-18 14:06:34,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:34,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800121834] [2022-01-18 14:06:34,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:34,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:34,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:34,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:34,415 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:34,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800121834] [2022-01-18 14:06:34,415 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800121834] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:34,415 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:34,415 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:06:34,415 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907229180] [2022-01-18 14:06:34,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:34,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:06:34,416 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:34,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:06:34,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:34,416 INFO L87 Difference]: Start difference. First operand 1277 states and 3910 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:34,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:34,608 INFO L93 Difference]: Finished difference Result 1553 states and 4668 transitions. [2022-01-18 14:06:34,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:06:34,608 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:34,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:34,610 INFO L225 Difference]: With dead ends: 1553 [2022-01-18 14:06:34,610 INFO L226 Difference]: Without dead ends: 1354 [2022-01-18 14:06:34,610 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:34,611 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 59 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:34,611 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 240 Invalid, 567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 559 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:34,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1354 states. [2022-01-18 14:06:34,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1354 to 1244. [2022-01-18 14:06:34,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1244 states, 1243 states have (on average 3.0402252614641996) internal successors, (3779), 1243 states have internal predecessors, (3779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:34,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1244 states to 1244 states and 3779 transitions. [2022-01-18 14:06:34,627 INFO L78 Accepts]: Start accepts. Automaton has 1244 states and 3779 transitions. Word has length 26 [2022-01-18 14:06:34,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:34,627 INFO L470 AbstractCegarLoop]: Abstraction has 1244 states and 3779 transitions. [2022-01-18 14:06:34,627 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:34,627 INFO L276 IsEmpty]: Start isEmpty. Operand 1244 states and 3779 transitions. [2022-01-18 14:06:34,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:34,629 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:34,629 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:34,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-18 14:06:34,629 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:34,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:34,629 INFO L85 PathProgramCache]: Analyzing trace with hash 600977811, now seen corresponding path program 39 times [2022-01-18 14:06:34,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:34,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523584949] [2022-01-18 14:06:34,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:34,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:34,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:34,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:34,718 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:34,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523584949] [2022-01-18 14:06:34,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523584949] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:34,718 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:34,718 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:06:34,718 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263241630] [2022-01-18 14:06:34,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:34,719 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:06:34,719 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:34,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:06:34,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:34,720 INFO L87 Difference]: Start difference. First operand 1244 states and 3779 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:34,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:34,901 INFO L93 Difference]: Finished difference Result 1430 states and 4297 transitions. [2022-01-18 14:06:34,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:06:34,901 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:34,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:34,904 INFO L225 Difference]: With dead ends: 1430 [2022-01-18 14:06:34,904 INFO L226 Difference]: Without dead ends: 1351 [2022-01-18 14:06:34,904 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:34,904 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 48 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:34,904 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 220 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 538 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:34,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1351 states. [2022-01-18 14:06:34,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1351 to 1255. [2022-01-18 14:06:34,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1255 states, 1254 states have (on average 3.0382775119617227) internal successors, (3810), 1254 states have internal predecessors, (3810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:34,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 3810 transitions. [2022-01-18 14:06:34,930 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 3810 transitions. Word has length 26 [2022-01-18 14:06:34,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:34,930 INFO L470 AbstractCegarLoop]: Abstraction has 1255 states and 3810 transitions. [2022-01-18 14:06:34,930 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:34,930 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 3810 transitions. [2022-01-18 14:06:34,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:34,932 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:34,932 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:34,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-01-18 14:06:34,932 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:34,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:34,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1110363693, now seen corresponding path program 40 times [2022-01-18 14:06:34,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:34,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254001814] [2022-01-18 14:06:34,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:34,933 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:34,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:34,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:34,992 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:34,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254001814] [2022-01-18 14:06:34,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254001814] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:34,993 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:34,993 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:06:34,993 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135029454] [2022-01-18 14:06:34,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:34,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:06:34,993 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:34,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:06:34,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:34,993 INFO L87 Difference]: Start difference. First operand 1255 states and 3810 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:35,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:35,180 INFO L93 Difference]: Finished difference Result 1537 states and 4623 transitions. [2022-01-18 14:06:35,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:06:35,180 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:35,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:35,182 INFO L225 Difference]: With dead ends: 1537 [2022-01-18 14:06:35,182 INFO L226 Difference]: Without dead ends: 1442 [2022-01-18 14:06:35,182 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:35,183 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 53 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:35,183 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 226 Invalid, 598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:35,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1442 states. [2022-01-18 14:06:35,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1442 to 1244. [2022-01-18 14:06:35,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1244 states, 1243 states have (on average 3.0378117457763474) internal successors, (3776), 1243 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:35,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1244 states to 1244 states and 3776 transitions. [2022-01-18 14:06:35,197 INFO L78 Accepts]: Start accepts. Automaton has 1244 states and 3776 transitions. Word has length 26 [2022-01-18 14:06:35,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:35,197 INFO L470 AbstractCegarLoop]: Abstraction has 1244 states and 3776 transitions. [2022-01-18 14:06:35,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:35,198 INFO L276 IsEmpty]: Start isEmpty. Operand 1244 states and 3776 transitions. [2022-01-18 14:06:35,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:35,199 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:35,199 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:35,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-01-18 14:06:35,200 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:35,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:35,200 INFO L85 PathProgramCache]: Analyzing trace with hash -681181457, now seen corresponding path program 41 times [2022-01-18 14:06:35,200 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:35,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739077156] [2022-01-18 14:06:35,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:35,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:35,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:35,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:35,254 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:35,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739077156] [2022-01-18 14:06:35,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739077156] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:35,254 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:35,254 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:06:35,254 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146013774] [2022-01-18 14:06:35,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:35,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:06:35,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:35,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:06:35,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:35,255 INFO L87 Difference]: Start difference. First operand 1244 states and 3776 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:35,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:35,469 INFO L93 Difference]: Finished difference Result 1525 states and 4571 transitions. [2022-01-18 14:06:35,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:06:35,470 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:35,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:35,472 INFO L225 Difference]: With dead ends: 1525 [2022-01-18 14:06:35,472 INFO L226 Difference]: Without dead ends: 1377 [2022-01-18 14:06:35,472 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:35,473 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 55 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:35,473 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 229 Invalid, 607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 599 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:35,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1377 states. [2022-01-18 14:06:35,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1377 to 1245. [2022-01-18 14:06:35,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1245 states, 1244 states have (on average 3.0434083601286175) internal successors, (3786), 1244 states have internal predecessors, (3786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:35,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1245 states to 1245 states and 3786 transitions. [2022-01-18 14:06:35,487 INFO L78 Accepts]: Start accepts. Automaton has 1245 states and 3786 transitions. Word has length 26 [2022-01-18 14:06:35,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:35,487 INFO L470 AbstractCegarLoop]: Abstraction has 1245 states and 3786 transitions. [2022-01-18 14:06:35,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:35,487 INFO L276 IsEmpty]: Start isEmpty. Operand 1245 states and 3786 transitions. [2022-01-18 14:06:35,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:35,489 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:35,489 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:35,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-01-18 14:06:35,489 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:35,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:35,489 INFO L85 PathProgramCache]: Analyzing trace with hash 2034862771, now seen corresponding path program 42 times [2022-01-18 14:06:35,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:35,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877232099] [2022-01-18 14:06:35,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:35,490 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:35,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:35,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:35,546 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:35,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877232099] [2022-01-18 14:06:35,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877232099] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:35,546 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:35,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:06:35,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636588841] [2022-01-18 14:06:35,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:35,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:06:35,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:35,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:06:35,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:35,547 INFO L87 Difference]: Start difference. First operand 1245 states and 3786 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:35,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:35,731 INFO L93 Difference]: Finished difference Result 1531 states and 4573 transitions. [2022-01-18 14:06:35,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:06:35,732 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:35,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:35,734 INFO L225 Difference]: With dead ends: 1531 [2022-01-18 14:06:35,734 INFO L226 Difference]: Without dead ends: 1401 [2022-01-18 14:06:35,734 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:35,734 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 56 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:35,734 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 233 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 593 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:35,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1401 states. [2022-01-18 14:06:35,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1401 to 1297. [2022-01-18 14:06:35,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1297 states, 1296 states have (on average 3.029320987654321) internal successors, (3926), 1296 states have internal predecessors, (3926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:35,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1297 states to 1297 states and 3926 transitions. [2022-01-18 14:06:35,748 INFO L78 Accepts]: Start accepts. Automaton has 1297 states and 3926 transitions. Word has length 26 [2022-01-18 14:06:35,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:35,749 INFO L470 AbstractCegarLoop]: Abstraction has 1297 states and 3926 transitions. [2022-01-18 14:06:35,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:35,749 INFO L276 IsEmpty]: Start isEmpty. Operand 1297 states and 3926 transitions. [2022-01-18 14:06:35,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:35,750 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:35,750 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:35,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-01-18 14:06:35,751 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:35,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:35,752 INFO L85 PathProgramCache]: Analyzing trace with hash -81406347, now seen corresponding path program 43 times [2022-01-18 14:06:35,752 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:35,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252846526] [2022-01-18 14:06:35,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:35,752 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:35,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:35,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:35,815 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:35,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252846526] [2022-01-18 14:06:35,815 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252846526] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:35,815 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:35,815 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:35,815 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50521245] [2022-01-18 14:06:35,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:35,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:35,816 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:35,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:35,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:35,816 INFO L87 Difference]: Start difference. First operand 1297 states and 3926 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:36,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:36,048 INFO L93 Difference]: Finished difference Result 1518 states and 4526 transitions. [2022-01-18 14:06:36,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:36,048 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:36,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:36,051 INFO L225 Difference]: With dead ends: 1518 [2022-01-18 14:06:36,051 INFO L226 Difference]: Without dead ends: 1395 [2022-01-18 14:06:36,051 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:36,051 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 62 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 732 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:36,051 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 287 Invalid, 742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 732 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:36,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1395 states. [2022-01-18 14:06:36,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1395 to 1271. [2022-01-18 14:06:36,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1271 states, 1270 states have (on average 3.0393700787401574) internal successors, (3860), 1270 states have internal predecessors, (3860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:36,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1271 states to 1271 states and 3860 transitions. [2022-01-18 14:06:36,066 INFO L78 Accepts]: Start accepts. Automaton has 1271 states and 3860 transitions. Word has length 26 [2022-01-18 14:06:36,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:36,066 INFO L470 AbstractCegarLoop]: Abstraction has 1271 states and 3860 transitions. [2022-01-18 14:06:36,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:36,066 INFO L276 IsEmpty]: Start isEmpty. Operand 1271 states and 3860 transitions. [2022-01-18 14:06:36,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:36,068 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:36,068 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:36,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-01-18 14:06:36,068 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:36,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:36,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1828054805, now seen corresponding path program 44 times [2022-01-18 14:06:36,069 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:36,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255831719] [2022-01-18 14:06:36,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:36,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:36,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:36,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:36,124 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:36,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255831719] [2022-01-18 14:06:36,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255831719] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:36,124 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:36,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:06:36,124 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668960849] [2022-01-18 14:06:36,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:36,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:06:36,124 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:36,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:06:36,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:36,125 INFO L87 Difference]: Start difference. First operand 1271 states and 3860 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:36,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:36,298 INFO L93 Difference]: Finished difference Result 1636 states and 4901 transitions. [2022-01-18 14:06:36,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:06:36,301 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:36,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:36,304 INFO L225 Difference]: With dead ends: 1636 [2022-01-18 14:06:36,304 INFO L226 Difference]: Without dead ends: 1496 [2022-01-18 14:06:36,304 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:36,304 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 53 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 543 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:36,304 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 233 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 543 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:36,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1496 states. [2022-01-18 14:06:36,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1496 to 1331. [2022-01-18 14:06:36,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1331 states, 1330 states have (on average 3.03609022556391) internal successors, (4038), 1330 states have internal predecessors, (4038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:36,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1331 states to 1331 states and 4038 transitions. [2022-01-18 14:06:36,319 INFO L78 Accepts]: Start accepts. Automaton has 1331 states and 4038 transitions. Word has length 26 [2022-01-18 14:06:36,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:36,319 INFO L470 AbstractCegarLoop]: Abstraction has 1331 states and 4038 transitions. [2022-01-18 14:06:36,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:36,319 INFO L276 IsEmpty]: Start isEmpty. Operand 1331 states and 4038 transitions. [2022-01-18 14:06:36,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:36,321 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:36,321 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:36,321 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-01-18 14:06:36,321 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:36,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:36,321 INFO L85 PathProgramCache]: Analyzing trace with hash 398238257, now seen corresponding path program 45 times [2022-01-18 14:06:36,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:36,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397915132] [2022-01-18 14:06:36,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:36,321 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:36,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:36,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:36,383 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:36,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397915132] [2022-01-18 14:06:36,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397915132] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:36,383 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:36,383 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:36,383 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039605951] [2022-01-18 14:06:36,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:36,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:36,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:36,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:36,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:36,384 INFO L87 Difference]: Start difference. First operand 1331 states and 4038 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:36,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:36,599 INFO L93 Difference]: Finished difference Result 1514 states and 4527 transitions. [2022-01-18 14:06:36,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:36,599 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:36,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:36,608 INFO L225 Difference]: With dead ends: 1514 [2022-01-18 14:06:36,608 INFO L226 Difference]: Without dead ends: 1403 [2022-01-18 14:06:36,608 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:36,611 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 58 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 666 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:36,611 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 289 Invalid, 678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 666 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:36,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1403 states. [2022-01-18 14:06:36,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1403 to 1295. [2022-01-18 14:06:36,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1295 states, 1294 states have (on average 3.030139103554869) internal successors, (3921), 1294 states have internal predecessors, (3921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:36,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1295 states to 1295 states and 3921 transitions. [2022-01-18 14:06:36,625 INFO L78 Accepts]: Start accepts. Automaton has 1295 states and 3921 transitions. Word has length 26 [2022-01-18 14:06:36,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:36,625 INFO L470 AbstractCegarLoop]: Abstraction has 1295 states and 3921 transitions. [2022-01-18 14:06:36,625 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:36,625 INFO L276 IsEmpty]: Start isEmpty. Operand 1295 states and 3921 transitions. [2022-01-18 14:06:36,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:36,627 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:36,627 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:36,627 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-01-18 14:06:36,627 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:36,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:36,628 INFO L85 PathProgramCache]: Analyzing trace with hash -313086959, now seen corresponding path program 46 times [2022-01-18 14:06:36,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:36,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303189605] [2022-01-18 14:06:36,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:36,628 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:36,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:36,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:36,702 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:36,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303189605] [2022-01-18 14:06:36,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303189605] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:36,702 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:36,702 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:36,702 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382612347] [2022-01-18 14:06:36,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:36,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:36,702 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:36,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:36,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:36,702 INFO L87 Difference]: Start difference. First operand 1295 states and 3921 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:36,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:36,918 INFO L93 Difference]: Finished difference Result 1453 states and 4342 transitions. [2022-01-18 14:06:36,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:36,918 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:36,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:36,920 INFO L225 Difference]: With dead ends: 1453 [2022-01-18 14:06:36,920 INFO L226 Difference]: Without dead ends: 1374 [2022-01-18 14:06:36,921 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:36,921 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 50 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 681 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:36,921 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 260 Invalid, 689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 681 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:36,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1374 states. [2022-01-18 14:06:36,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1374 to 1319. [2022-01-18 14:06:36,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1319 states, 1318 states have (on average 3.030349013657056) internal successors, (3994), 1318 states have internal predecessors, (3994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:36,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1319 states to 1319 states and 3994 transitions. [2022-01-18 14:06:36,936 INFO L78 Accepts]: Start accepts. Automaton has 1319 states and 3994 transitions. Word has length 26 [2022-01-18 14:06:36,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:36,936 INFO L470 AbstractCegarLoop]: Abstraction has 1319 states and 3994 transitions. [2022-01-18 14:06:36,936 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:36,936 INFO L276 IsEmpty]: Start isEmpty. Operand 1319 states and 3994 transitions. [2022-01-18 14:06:36,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:36,938 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:36,938 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:36,938 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-01-18 14:06:36,938 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:36,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:36,938 INFO L85 PathProgramCache]: Analyzing trace with hash 2045579411, now seen corresponding path program 47 times [2022-01-18 14:06:36,938 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:36,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635337119] [2022-01-18 14:06:36,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:36,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:36,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:37,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:37,002 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:37,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635337119] [2022-01-18 14:06:37,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635337119] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:37,003 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:37,003 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:37,003 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955826131] [2022-01-18 14:06:37,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:37,003 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:37,003 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:37,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:37,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:37,003 INFO L87 Difference]: Start difference. First operand 1319 states and 3994 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:37,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:37,233 INFO L93 Difference]: Finished difference Result 1550 states and 4630 transitions. [2022-01-18 14:06:37,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:37,233 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:37,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:37,235 INFO L225 Difference]: With dead ends: 1550 [2022-01-18 14:06:37,235 INFO L226 Difference]: Without dead ends: 1455 [2022-01-18 14:06:37,236 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:37,236 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 55 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 723 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:37,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 264 Invalid, 733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 723 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:37,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1455 states. [2022-01-18 14:06:37,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1455 to 1323. [2022-01-18 14:06:37,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1323 states, 1322 states have (on average 3.0310136157337366) internal successors, (4007), 1322 states have internal predecessors, (4007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:37,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1323 states to 1323 states and 4007 transitions. [2022-01-18 14:06:37,251 INFO L78 Accepts]: Start accepts. Automaton has 1323 states and 4007 transitions. Word has length 26 [2022-01-18 14:06:37,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:37,251 INFO L470 AbstractCegarLoop]: Abstraction has 1323 states and 4007 transitions. [2022-01-18 14:06:37,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:37,252 INFO L276 IsEmpty]: Start isEmpty. Operand 1323 states and 4007 transitions. [2022-01-18 14:06:37,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:37,253 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:37,253 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:37,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-01-18 14:06:37,253 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:37,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:37,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1882015501, now seen corresponding path program 48 times [2022-01-18 14:06:37,254 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:37,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616621006] [2022-01-18 14:06:37,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:37,254 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:37,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:37,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:37,321 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:37,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616621006] [2022-01-18 14:06:37,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616621006] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:37,322 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:37,322 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:37,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258310742] [2022-01-18 14:06:37,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:37,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:37,322 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:37,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:37,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:37,322 INFO L87 Difference]: Start difference. First operand 1323 states and 4007 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:37,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:37,526 INFO L93 Difference]: Finished difference Result 1551 states and 4630 transitions. [2022-01-18 14:06:37,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:37,527 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:37,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:37,529 INFO L225 Difference]: With dead ends: 1551 [2022-01-18 14:06:37,529 INFO L226 Difference]: Without dead ends: 1472 [2022-01-18 14:06:37,529 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:37,529 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 49 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 671 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:37,529 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 262 Invalid, 679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 671 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:37,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1472 states. [2022-01-18 14:06:37,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1472 to 1327. [2022-01-18 14:06:37,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1327 states, 1326 states have (on average 3.0279034690799396) internal successors, (4015), 1326 states have internal predecessors, (4015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:37,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1327 states to 1327 states and 4015 transitions. [2022-01-18 14:06:37,544 INFO L78 Accepts]: Start accepts. Automaton has 1327 states and 4015 transitions. Word has length 26 [2022-01-18 14:06:37,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:37,544 INFO L470 AbstractCegarLoop]: Abstraction has 1327 states and 4015 transitions. [2022-01-18 14:06:37,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:37,544 INFO L276 IsEmpty]: Start isEmpty. Operand 1327 states and 4015 transitions. [2022-01-18 14:06:37,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:37,546 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:37,546 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:37,546 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-01-18 14:06:37,546 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:37,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:37,546 INFO L85 PathProgramCache]: Analyzing trace with hash 97667705, now seen corresponding path program 49 times [2022-01-18 14:06:37,546 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:37,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890001197] [2022-01-18 14:06:37,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:37,546 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:37,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:37,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:37,607 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:37,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890001197] [2022-01-18 14:06:37,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890001197] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:37,608 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:37,608 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:37,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146890476] [2022-01-18 14:06:37,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:37,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:37,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:37,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:37,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:37,608 INFO L87 Difference]: Start difference. First operand 1327 states and 4015 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:37,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:37,822 INFO L93 Difference]: Finished difference Result 1593 states and 4759 transitions. [2022-01-18 14:06:37,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:37,823 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:37,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:37,825 INFO L225 Difference]: With dead ends: 1593 [2022-01-18 14:06:37,825 INFO L226 Difference]: Without dead ends: 1491 [2022-01-18 14:06:37,825 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:37,825 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 51 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 673 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:37,826 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 266 Invalid, 685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 673 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:37,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1491 states. [2022-01-18 14:06:37,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1491 to 1313. [2022-01-18 14:06:37,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1313 states, 1312 states have (on average 3.0373475609756095) internal successors, (3985), 1312 states have internal predecessors, (3985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:37,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1313 states to 1313 states and 3985 transitions. [2022-01-18 14:06:37,840 INFO L78 Accepts]: Start accepts. Automaton has 1313 states and 3985 transitions. Word has length 26 [2022-01-18 14:06:37,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:37,840 INFO L470 AbstractCegarLoop]: Abstraction has 1313 states and 3985 transitions. [2022-01-18 14:06:37,840 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:37,840 INFO L276 IsEmpty]: Start isEmpty. Operand 1313 states and 3985 transitions. [2022-01-18 14:06:37,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:37,842 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:37,842 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:37,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-01-18 14:06:37,842 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:37,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:37,842 INFO L85 PathProgramCache]: Analyzing trace with hash 860903061, now seen corresponding path program 50 times [2022-01-18 14:06:37,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:37,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021957270] [2022-01-18 14:06:37,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:37,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:37,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:37,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:37,919 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:37,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021957270] [2022-01-18 14:06:37,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021957270] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:37,919 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:37,919 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:06:37,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807642214] [2022-01-18 14:06:37,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:37,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:06:37,919 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:37,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:06:37,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:37,920 INFO L87 Difference]: Start difference. First operand 1313 states and 3985 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:38,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:38,110 INFO L93 Difference]: Finished difference Result 1603 states and 4787 transitions. [2022-01-18 14:06:38,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:06:38,111 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:38,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:38,113 INFO L225 Difference]: With dead ends: 1603 [2022-01-18 14:06:38,113 INFO L226 Difference]: Without dead ends: 1453 [2022-01-18 14:06:38,113 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:38,113 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 58 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:38,114 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 234 Invalid, 610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:38,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1453 states. [2022-01-18 14:06:38,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1453 to 1339. [2022-01-18 14:06:38,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1339 states, 1338 states have (on average 3.0336322869955157) internal successors, (4059), 1338 states have internal predecessors, (4059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:38,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1339 states to 1339 states and 4059 transitions. [2022-01-18 14:06:38,129 INFO L78 Accepts]: Start accepts. Automaton has 1339 states and 4059 transitions. Word has length 26 [2022-01-18 14:06:38,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:38,129 INFO L470 AbstractCegarLoop]: Abstraction has 1339 states and 4059 transitions. [2022-01-18 14:06:38,129 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:38,129 INFO L276 IsEmpty]: Start isEmpty. Operand 1339 states and 4059 transitions. [2022-01-18 14:06:38,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:38,131 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:38,131 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:38,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-01-18 14:06:38,131 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:38,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:38,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1255366057, now seen corresponding path program 51 times [2022-01-18 14:06:38,131 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:38,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788899208] [2022-01-18 14:06:38,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:38,131 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:38,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:38,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:38,192 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:38,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788899208] [2022-01-18 14:06:38,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788899208] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:38,192 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:38,192 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:38,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454890023] [2022-01-18 14:06:38,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:38,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:38,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:38,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:38,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:38,193 INFO L87 Difference]: Start difference. First operand 1339 states and 4059 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:38,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:38,420 INFO L93 Difference]: Finished difference Result 1564 states and 4681 transitions. [2022-01-18 14:06:38,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:38,420 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:38,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:38,422 INFO L225 Difference]: With dead ends: 1564 [2022-01-18 14:06:38,422 INFO L226 Difference]: Without dead ends: 1432 [2022-01-18 14:06:38,422 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:38,423 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 64 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 743 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:38,423 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 288 Invalid, 755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 743 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:38,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2022-01-18 14:06:38,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 1313. [2022-01-18 14:06:38,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1313 states, 1312 states have (on average 3.041920731707317) internal successors, (3991), 1312 states have internal predecessors, (3991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:38,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1313 states to 1313 states and 3991 transitions. [2022-01-18 14:06:38,437 INFO L78 Accepts]: Start accepts. Automaton has 1313 states and 3991 transitions. Word has length 26 [2022-01-18 14:06:38,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:38,437 INFO L470 AbstractCegarLoop]: Abstraction has 1313 states and 3991 transitions. [2022-01-18 14:06:38,437 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:38,438 INFO L276 IsEmpty]: Start isEmpty. Operand 1313 states and 3991 transitions. [2022-01-18 14:06:38,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:38,439 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:38,439 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:38,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-01-18 14:06:38,439 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:38,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:38,439 INFO L85 PathProgramCache]: Analyzing trace with hash 158416469, now seen corresponding path program 52 times [2022-01-18 14:06:38,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:38,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758251002] [2022-01-18 14:06:38,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:38,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:38,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:38,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:38,507 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:38,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758251002] [2022-01-18 14:06:38,507 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758251002] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:38,507 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:38,507 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:06:38,507 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060895309] [2022-01-18 14:06:38,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:38,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:06:38,507 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:38,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:06:38,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:38,508 INFO L87 Difference]: Start difference. First operand 1313 states and 3991 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:38,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:38,680 INFO L93 Difference]: Finished difference Result 1533 states and 4603 transitions. [2022-01-18 14:06:38,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:06:38,680 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:38,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:38,682 INFO L225 Difference]: With dead ends: 1533 [2022-01-18 14:06:38,682 INFO L226 Difference]: Without dead ends: 1436 [2022-01-18 14:06:38,682 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:38,682 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 50 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 551 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:38,682 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 220 Invalid, 559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 551 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:38,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1436 states. [2022-01-18 14:06:38,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1436 to 1330. [2022-01-18 14:06:38,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1330 states, 1329 states have (on average 3.0413844996237773) internal successors, (4042), 1329 states have internal predecessors, (4042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:38,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1330 states to 1330 states and 4042 transitions. [2022-01-18 14:06:38,697 INFO L78 Accepts]: Start accepts. Automaton has 1330 states and 4042 transitions. Word has length 26 [2022-01-18 14:06:38,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:38,697 INFO L470 AbstractCegarLoop]: Abstraction has 1330 states and 4042 transitions. [2022-01-18 14:06:38,697 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:38,698 INFO L276 IsEmpty]: Start isEmpty. Operand 1330 states and 4042 transitions. [2022-01-18 14:06:38,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:38,699 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:38,699 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:38,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-01-18 14:06:38,699 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:38,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:38,700 INFO L85 PathProgramCache]: Analyzing trace with hash 657842583, now seen corresponding path program 53 times [2022-01-18 14:06:38,700 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:38,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301198724] [2022-01-18 14:06:38,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:38,700 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:38,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:38,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:38,764 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:38,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301198724] [2022-01-18 14:06:38,764 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301198724] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:38,764 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:38,764 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:38,764 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582845291] [2022-01-18 14:06:38,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:38,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:38,765 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:38,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:38,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:38,765 INFO L87 Difference]: Start difference. First operand 1330 states and 4042 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:38,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:38,978 INFO L93 Difference]: Finished difference Result 1540 states and 4628 transitions. [2022-01-18 14:06:38,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:38,978 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:38,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:38,981 INFO L225 Difference]: With dead ends: 1540 [2022-01-18 14:06:38,981 INFO L226 Difference]: Without dead ends: 1461 [2022-01-18 14:06:38,981 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:38,981 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 53 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 699 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:38,981 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 264 Invalid, 709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 699 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:38,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1461 states. [2022-01-18 14:06:38,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1461 to 1342. [2022-01-18 14:06:38,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1342 states, 1341 states have (on average 3.0395227442207307) internal successors, (4076), 1341 states have internal predecessors, (4076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:38,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1342 states to 1342 states and 4076 transitions. [2022-01-18 14:06:38,996 INFO L78 Accepts]: Start accepts. Automaton has 1342 states and 4076 transitions. Word has length 26 [2022-01-18 14:06:38,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:38,996 INFO L470 AbstractCegarLoop]: Abstraction has 1342 states and 4076 transitions. [2022-01-18 14:06:38,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:38,996 INFO L276 IsEmpty]: Start isEmpty. Operand 1342 states and 4076 transitions. [2022-01-18 14:06:38,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:38,997 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:38,997 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:38,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-01-18 14:06:38,998 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:38,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:38,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1053498921, now seen corresponding path program 54 times [2022-01-18 14:06:38,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:38,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239895514] [2022-01-18 14:06:38,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:38,998 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:39,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:39,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:39,058 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:39,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239895514] [2022-01-18 14:06:39,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239895514] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:39,058 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:39,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:39,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152847706] [2022-01-18 14:06:39,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:39,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:39,058 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:39,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:39,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:39,059 INFO L87 Difference]: Start difference. First operand 1342 states and 4076 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:39,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:39,297 INFO L93 Difference]: Finished difference Result 1587 states and 4770 transitions. [2022-01-18 14:06:39,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:39,297 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:39,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:39,300 INFO L225 Difference]: With dead ends: 1587 [2022-01-18 14:06:39,300 INFO L226 Difference]: Without dead ends: 1474 [2022-01-18 14:06:39,300 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:39,300 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 58 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 740 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 740 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:39,300 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 267 Invalid, 752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 740 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:39,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2022-01-18 14:06:39,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1340. [2022-01-18 14:06:39,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1340 states, 1339 states have (on average 3.0403286034353996) internal successors, (4071), 1339 states have internal predecessors, (4071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:39,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1340 states to 1340 states and 4071 transitions. [2022-01-18 14:06:39,314 INFO L78 Accepts]: Start accepts. Automaton has 1340 states and 4071 transitions. Word has length 26 [2022-01-18 14:06:39,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:39,314 INFO L470 AbstractCegarLoop]: Abstraction has 1340 states and 4071 transitions. [2022-01-18 14:06:39,314 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:39,314 INFO L276 IsEmpty]: Start isEmpty. Operand 1340 states and 4071 transitions. [2022-01-18 14:06:39,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:39,316 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:39,316 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:39,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-01-18 14:06:39,316 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:39,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:39,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1578418549, now seen corresponding path program 55 times [2022-01-18 14:06:39,316 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:39,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341721749] [2022-01-18 14:06:39,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:39,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:39,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:39,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:39,388 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:39,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341721749] [2022-01-18 14:06:39,388 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341721749] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:39,388 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:39,388 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:39,388 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766137631] [2022-01-18 14:06:39,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:39,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:39,389 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:39,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:39,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:39,389 INFO L87 Difference]: Start difference. First operand 1340 states and 4071 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:39,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:39,598 INFO L93 Difference]: Finished difference Result 1550 states and 4655 transitions. [2022-01-18 14:06:39,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:39,598 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:39,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:39,600 INFO L225 Difference]: With dead ends: 1550 [2022-01-18 14:06:39,600 INFO L226 Difference]: Without dead ends: 1456 [2022-01-18 14:06:39,600 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:39,601 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 53 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 675 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:39,601 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 258 Invalid, 687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 675 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:39,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1456 states. [2022-01-18 14:06:39,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1456 to 1323. [2022-01-18 14:06:39,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1323 states, 1322 states have (on average 3.042360060514372) internal successors, (4022), 1322 states have internal predecessors, (4022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:39,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1323 states to 1323 states and 4022 transitions. [2022-01-18 14:06:39,614 INFO L78 Accepts]: Start accepts. Automaton has 1323 states and 4022 transitions. Word has length 26 [2022-01-18 14:06:39,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:39,614 INFO L470 AbstractCegarLoop]: Abstraction has 1323 states and 4022 transitions. [2022-01-18 14:06:39,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:39,615 INFO L276 IsEmpty]: Start isEmpty. Operand 1323 states and 4022 transitions. [2022-01-18 14:06:39,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:39,616 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:39,616 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:39,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-01-18 14:06:39,616 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:39,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:39,617 INFO L85 PathProgramCache]: Analyzing trace with hash -2044579279, now seen corresponding path program 56 times [2022-01-18 14:06:39,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:39,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224670520] [2022-01-18 14:06:39,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:39,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:39,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:39,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:39,675 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:39,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224670520] [2022-01-18 14:06:39,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224670520] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:39,675 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:39,675 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:06:39,675 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037903456] [2022-01-18 14:06:39,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:39,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:06:39,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:39,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:06:39,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:39,676 INFO L87 Difference]: Start difference. First operand 1323 states and 4022 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:39,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:39,853 INFO L93 Difference]: Finished difference Result 1614 states and 4865 transitions. [2022-01-18 14:06:39,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:06:39,853 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:39,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:39,856 INFO L225 Difference]: With dead ends: 1614 [2022-01-18 14:06:39,856 INFO L226 Difference]: Without dead ends: 1535 [2022-01-18 14:06:39,856 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:39,856 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 44 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:39,856 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 213 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 522 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:39,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1535 states. [2022-01-18 14:06:39,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1535 to 1344. [2022-01-18 14:06:39,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1344 states, 1343 states have (on average 3.040953090096798) internal successors, (4084), 1343 states have internal predecessors, (4084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:39,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1344 states to 1344 states and 4084 transitions. [2022-01-18 14:06:39,871 INFO L78 Accepts]: Start accepts. Automaton has 1344 states and 4084 transitions. Word has length 26 [2022-01-18 14:06:39,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:39,871 INFO L470 AbstractCegarLoop]: Abstraction has 1344 states and 4084 transitions. [2022-01-18 14:06:39,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:39,871 INFO L276 IsEmpty]: Start isEmpty. Operand 1344 states and 4084 transitions. [2022-01-18 14:06:39,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:39,872 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:39,872 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:39,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-01-18 14:06:39,873 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:39,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:39,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1708471687, now seen corresponding path program 57 times [2022-01-18 14:06:39,873 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:39,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774370246] [2022-01-18 14:06:39,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:39,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:39,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:39,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:39,932 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:39,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774370246] [2022-01-18 14:06:39,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774370246] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:39,933 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:39,933 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:06:39,933 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476083693] [2022-01-18 14:06:39,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:39,933 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:06:39,933 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:39,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:06:39,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:39,933 INFO L87 Difference]: Start difference. First operand 1344 states and 4084 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:40,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:40,115 INFO L93 Difference]: Finished difference Result 1680 states and 5059 transitions. [2022-01-18 14:06:40,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:06:40,115 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:40,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:40,118 INFO L225 Difference]: With dead ends: 1680 [2022-01-18 14:06:40,118 INFO L226 Difference]: Without dead ends: 1585 [2022-01-18 14:06:40,118 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:40,118 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 46 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:40,118 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 215 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 547 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:40,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1585 states. [2022-01-18 14:06:40,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1585 to 1362. [2022-01-18 14:06:40,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1362 states, 1361 states have (on average 3.044819985304923) internal successors, (4144), 1361 states have internal predecessors, (4144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:40,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1362 states to 1362 states and 4144 transitions. [2022-01-18 14:06:40,133 INFO L78 Accepts]: Start accepts. Automaton has 1362 states and 4144 transitions. Word has length 26 [2022-01-18 14:06:40,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:40,133 INFO L470 AbstractCegarLoop]: Abstraction has 1362 states and 4144 transitions. [2022-01-18 14:06:40,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:40,133 INFO L276 IsEmpty]: Start isEmpty. Operand 1362 states and 4144 transitions. [2022-01-18 14:06:40,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:40,135 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:40,135 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:40,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-01-18 14:06:40,135 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:40,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:40,135 INFO L85 PathProgramCache]: Analyzing trace with hash 681459475, now seen corresponding path program 58 times [2022-01-18 14:06:40,135 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:40,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703118453] [2022-01-18 14:06:40,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:40,136 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:40,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:40,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:40,196 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:40,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703118453] [2022-01-18 14:06:40,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703118453] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:40,196 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:40,196 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:06:40,196 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340287621] [2022-01-18 14:06:40,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:40,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:06:40,196 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:40,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:06:40,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:40,196 INFO L87 Difference]: Start difference. First operand 1362 states and 4144 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:40,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:40,378 INFO L93 Difference]: Finished difference Result 1581 states and 4769 transitions. [2022-01-18 14:06:40,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:06:40,378 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:40,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:40,381 INFO L225 Difference]: With dead ends: 1581 [2022-01-18 14:06:40,381 INFO L226 Difference]: Without dead ends: 1490 [2022-01-18 14:06:40,381 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:40,381 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 45 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:40,381 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 206 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:40,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1490 states. [2022-01-18 14:06:40,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1490 to 1345. [2022-01-18 14:06:40,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1345 states, 1344 states have (on average 3.044642857142857) internal successors, (4092), 1344 states have internal predecessors, (4092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:40,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1345 states to 1345 states and 4092 transitions. [2022-01-18 14:06:40,396 INFO L78 Accepts]: Start accepts. Automaton has 1345 states and 4092 transitions. Word has length 26 [2022-01-18 14:06:40,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:40,396 INFO L470 AbstractCegarLoop]: Abstraction has 1345 states and 4092 transitions. [2022-01-18 14:06:40,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:40,396 INFO L276 IsEmpty]: Start isEmpty. Operand 1345 states and 4092 transitions. [2022-01-18 14:06:40,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:40,398 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:40,398 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:40,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-01-18 14:06:40,398 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:40,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:40,398 INFO L85 PathProgramCache]: Analyzing trace with hash -1534854127, now seen corresponding path program 59 times [2022-01-18 14:06:40,398 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:40,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141446043] [2022-01-18 14:06:40,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:40,406 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:40,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:40,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:40,476 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:40,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141446043] [2022-01-18 14:06:40,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141446043] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:40,476 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:40,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:40,476 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511155391] [2022-01-18 14:06:40,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:40,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:40,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:40,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:40,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:40,476 INFO L87 Difference]: Start difference. First operand 1345 states and 4092 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:40,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:40,706 INFO L93 Difference]: Finished difference Result 1471 states and 4427 transitions. [2022-01-18 14:06:40,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:40,707 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:40,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:40,709 INFO L225 Difference]: With dead ends: 1471 [2022-01-18 14:06:40,709 INFO L226 Difference]: Without dead ends: 1392 [2022-01-18 14:06:40,709 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:40,709 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 44 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 667 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:40,709 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 226 Invalid, 675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 667 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:40,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1392 states. [2022-01-18 14:06:40,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1392 to 1357. [2022-01-18 14:06:40,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1357 states, 1356 states have (on average 3.0427728613569323) internal successors, (4126), 1356 states have internal predecessors, (4126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:40,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1357 states to 1357 states and 4126 transitions. [2022-01-18 14:06:40,724 INFO L78 Accepts]: Start accepts. Automaton has 1357 states and 4126 transitions. Word has length 26 [2022-01-18 14:06:40,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:40,724 INFO L470 AbstractCegarLoop]: Abstraction has 1357 states and 4126 transitions. [2022-01-18 14:06:40,724 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:40,724 INFO L276 IsEmpty]: Start isEmpty. Operand 1357 states and 4126 transitions. [2022-01-18 14:06:40,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:40,726 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:40,726 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:40,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-01-18 14:06:40,726 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:40,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:40,726 INFO L85 PathProgramCache]: Analyzing trace with hash 823812243, now seen corresponding path program 60 times [2022-01-18 14:06:40,727 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:40,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465307600] [2022-01-18 14:06:40,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:40,727 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:40,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:40,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:40,792 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:40,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465307600] [2022-01-18 14:06:40,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465307600] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:40,792 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:40,792 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:40,792 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792842523] [2022-01-18 14:06:40,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:40,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:40,793 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:40,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:40,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:40,793 INFO L87 Difference]: Start difference. First operand 1357 states and 4126 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:41,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:41,026 INFO L93 Difference]: Finished difference Result 1521 states and 4567 transitions. [2022-01-18 14:06:41,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:41,027 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:41,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:41,029 INFO L225 Difference]: With dead ends: 1521 [2022-01-18 14:06:41,029 INFO L226 Difference]: Without dead ends: 1426 [2022-01-18 14:06:41,029 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:41,030 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 49 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:41,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 228 Invalid, 721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:41,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1426 states. [2022-01-18 14:06:41,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1426 to 1365. [2022-01-18 14:06:41,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1365 states, 1364 states have (on average 3.0454545454545454) internal successors, (4154), 1364 states have internal predecessors, (4154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:41,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1365 states to 1365 states and 4154 transitions. [2022-01-18 14:06:41,044 INFO L78 Accepts]: Start accepts. Automaton has 1365 states and 4154 transitions. Word has length 26 [2022-01-18 14:06:41,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:41,045 INFO L470 AbstractCegarLoop]: Abstraction has 1365 states and 4154 transitions. [2022-01-18 14:06:41,045 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:41,045 INFO L276 IsEmpty]: Start isEmpty. Operand 1365 states and 4154 transitions. [2022-01-18 14:06:41,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:41,046 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:41,046 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:41,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-01-18 14:06:41,046 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:41,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:41,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1191184627, now seen corresponding path program 61 times [2022-01-18 14:06:41,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:41,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435279219] [2022-01-18 14:06:41,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:41,047 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:41,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:41,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:41,122 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:41,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435279219] [2022-01-18 14:06:41,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435279219] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:41,122 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:41,122 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:41,122 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947509090] [2022-01-18 14:06:41,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:41,122 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:41,123 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:41,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:41,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:41,123 INFO L87 Difference]: Start difference. First operand 1365 states and 4154 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:41,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:41,361 INFO L93 Difference]: Finished difference Result 1567 states and 4715 transitions. [2022-01-18 14:06:41,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:41,362 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:41,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:41,364 INFO L225 Difference]: With dead ends: 1567 [2022-01-18 14:06:41,364 INFO L226 Difference]: Without dead ends: 1488 [2022-01-18 14:06:41,364 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:41,365 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 43 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:41,365 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 228 Invalid, 665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 657 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:41,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1488 states. [2022-01-18 14:06:41,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1488 to 1372. [2022-01-18 14:06:41,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1372 states, 1371 states have (on average 3.0437636761487963) internal successors, (4173), 1371 states have internal predecessors, (4173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:41,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1372 states to 1372 states and 4173 transitions. [2022-01-18 14:06:41,379 INFO L78 Accepts]: Start accepts. Automaton has 1372 states and 4173 transitions. Word has length 26 [2022-01-18 14:06:41,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:41,379 INFO L470 AbstractCegarLoop]: Abstraction has 1372 states and 4173 transitions. [2022-01-18 14:06:41,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:41,380 INFO L276 IsEmpty]: Start isEmpty. Operand 1372 states and 4173 transitions. [2022-01-18 14:06:41,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:41,381 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:41,381 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:41,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-01-18 14:06:41,381 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:41,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:41,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1124099463, now seen corresponding path program 62 times [2022-01-18 14:06:41,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:41,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093829622] [2022-01-18 14:06:41,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:41,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:41,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:41,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:41,447 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:41,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093829622] [2022-01-18 14:06:41,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093829622] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:41,448 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:41,448 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:41,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205078583] [2022-01-18 14:06:41,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:41,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:41,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:41,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:41,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:41,448 INFO L87 Difference]: Start difference. First operand 1372 states and 4173 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:41,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:41,654 INFO L93 Difference]: Finished difference Result 1591 states and 4779 transitions. [2022-01-18 14:06:41,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:41,654 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:41,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:41,656 INFO L225 Difference]: With dead ends: 1591 [2022-01-18 14:06:41,657 INFO L226 Difference]: Without dead ends: 1496 [2022-01-18 14:06:41,657 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:41,657 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 45 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:41,657 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 230 Invalid, 673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 663 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:41,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1496 states. [2022-01-18 14:06:41,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1496 to 1377. [2022-01-18 14:06:41,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1377 states, 1376 states have (on average 3.0450581395348837) internal successors, (4190), 1376 states have internal predecessors, (4190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:41,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1377 states to 1377 states and 4190 transitions. [2022-01-18 14:06:41,672 INFO L78 Accepts]: Start accepts. Automaton has 1377 states and 4190 transitions. Word has length 26 [2022-01-18 14:06:41,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:41,672 INFO L470 AbstractCegarLoop]: Abstraction has 1377 states and 4190 transitions. [2022-01-18 14:06:41,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:41,672 INFO L276 IsEmpty]: Start isEmpty. Operand 1377 states and 4190 transitions. [2022-01-18 14:06:41,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:41,673 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:41,673 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:41,674 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-01-18 14:06:41,674 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:41,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:41,674 INFO L85 PathProgramCache]: Analyzing trace with hash -478678661, now seen corresponding path program 63 times [2022-01-18 14:06:41,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:41,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284065528] [2022-01-18 14:06:41,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:41,674 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:41,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:41,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:41,743 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:41,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284065528] [2022-01-18 14:06:41,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284065528] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:41,743 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:41,743 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:41,743 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722056666] [2022-01-18 14:06:41,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:41,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:41,743 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:41,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:41,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:41,743 INFO L87 Difference]: Start difference. First operand 1377 states and 4190 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:41,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:41,963 INFO L93 Difference]: Finished difference Result 1579 states and 4742 transitions. [2022-01-18 14:06:41,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:41,964 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:41,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:41,966 INFO L225 Difference]: With dead ends: 1579 [2022-01-18 14:06:41,966 INFO L226 Difference]: Without dead ends: 1491 [2022-01-18 14:06:41,966 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:41,966 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 49 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 707 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:41,966 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 232 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 707 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:41,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1491 states. [2022-01-18 14:06:41,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1491 to 1383. [2022-01-18 14:06:41,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1383 states, 1382 states have (on average 3.045586107091172) internal successors, (4209), 1382 states have internal predecessors, (4209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:41,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1383 states to 1383 states and 4209 transitions. [2022-01-18 14:06:41,981 INFO L78 Accepts]: Start accepts. Automaton has 1383 states and 4209 transitions. Word has length 26 [2022-01-18 14:06:41,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:41,981 INFO L470 AbstractCegarLoop]: Abstraction has 1383 states and 4209 transitions. [2022-01-18 14:06:41,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:41,981 INFO L276 IsEmpty]: Start isEmpty. Operand 1383 states and 4209 transitions. [2022-01-18 14:06:41,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:41,983 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:41,983 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:41,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-01-18 14:06:41,983 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:41,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:41,983 INFO L85 PathProgramCache]: Analyzing trace with hash -390741927, now seen corresponding path program 64 times [2022-01-18 14:06:41,983 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:41,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471880426] [2022-01-18 14:06:41,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:41,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:41,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:42,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:42,058 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:42,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471880426] [2022-01-18 14:06:42,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471880426] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:42,059 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:42,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:42,059 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407327397] [2022-01-18 14:06:42,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:42,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:42,059 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:42,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:42,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:42,059 INFO L87 Difference]: Start difference. First operand 1383 states and 4209 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:42,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:42,281 INFO L93 Difference]: Finished difference Result 1558 states and 4681 transitions. [2022-01-18 14:06:42,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:42,281 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:42,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:42,283 INFO L225 Difference]: With dead ends: 1558 [2022-01-18 14:06:42,283 INFO L226 Difference]: Without dead ends: 1464 [2022-01-18 14:06:42,283 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:42,283 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 46 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 667 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:42,284 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 232 Invalid, 679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 667 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:42,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1464 states. [2022-01-18 14:06:42,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1464 to 1385. [2022-01-18 14:06:42,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1385 states, 1384 states have (on average 3.046965317919075) internal successors, (4217), 1384 states have internal predecessors, (4217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:42,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1385 states to 1385 states and 4217 transitions. [2022-01-18 14:06:42,298 INFO L78 Accepts]: Start accepts. Automaton has 1385 states and 4217 transitions. Word has length 26 [2022-01-18 14:06:42,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:42,298 INFO L470 AbstractCegarLoop]: Abstraction has 1385 states and 4217 transitions. [2022-01-18 14:06:42,298 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:42,298 INFO L276 IsEmpty]: Start isEmpty. Operand 1385 states and 4217 transitions. [2022-01-18 14:06:42,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:42,300 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:42,300 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:42,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-01-18 14:06:42,300 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:42,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:42,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1741662093, now seen corresponding path program 65 times [2022-01-18 14:06:42,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:42,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757742313] [2022-01-18 14:06:42,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:42,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:42,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:42,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:42,362 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:42,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757742313] [2022-01-18 14:06:42,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757742313] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:42,362 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:42,362 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:42,362 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059246499] [2022-01-18 14:06:42,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:42,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:42,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:42,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:42,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:42,362 INFO L87 Difference]: Start difference. First operand 1385 states and 4217 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:42,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:42,567 INFO L93 Difference]: Finished difference Result 1534 states and 4620 transitions. [2022-01-18 14:06:42,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:42,568 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:42,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:42,570 INFO L225 Difference]: With dead ends: 1534 [2022-01-18 14:06:42,570 INFO L226 Difference]: Without dead ends: 1455 [2022-01-18 14:06:42,570 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:42,570 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 45 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 673 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:42,570 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 228 Invalid, 681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 673 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:42,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1455 states. [2022-01-18 14:06:42,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1455 to 1391. [2022-01-18 14:06:42,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1391 states, 1390 states have (on average 3.050359712230216) internal successors, (4240), 1390 states have internal predecessors, (4240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:42,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1391 states to 1391 states and 4240 transitions. [2022-01-18 14:06:42,601 INFO L78 Accepts]: Start accepts. Automaton has 1391 states and 4240 transitions. Word has length 26 [2022-01-18 14:06:42,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:42,601 INFO L470 AbstractCegarLoop]: Abstraction has 1391 states and 4240 transitions. [2022-01-18 14:06:42,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:42,601 INFO L276 IsEmpty]: Start isEmpty. Operand 1391 states and 4240 transitions. [2022-01-18 14:06:42,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:42,603 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:42,603 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:42,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-01-18 14:06:42,603 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:42,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:42,603 INFO L85 PathProgramCache]: Analyzing trace with hash 617004277, now seen corresponding path program 66 times [2022-01-18 14:06:42,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:42,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798531150] [2022-01-18 14:06:42,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:42,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:42,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:42,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:42,687 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:42,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798531150] [2022-01-18 14:06:42,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798531150] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:42,687 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:42,687 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:42,687 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818362173] [2022-01-18 14:06:42,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:42,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:42,687 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:42,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:42,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:42,687 INFO L87 Difference]: Start difference. First operand 1391 states and 4240 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:42,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:42,910 INFO L93 Difference]: Finished difference Result 1569 states and 4729 transitions. [2022-01-18 14:06:42,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:42,910 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:42,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:42,912 INFO L225 Difference]: With dead ends: 1569 [2022-01-18 14:06:42,912 INFO L226 Difference]: Without dead ends: 1474 [2022-01-18 14:06:42,912 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:42,913 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 50 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 719 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:42,913 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 230 Invalid, 727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 719 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:42,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2022-01-18 14:06:42,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1400. [2022-01-18 14:06:42,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1400 states, 1399 states have (on average 3.0528949249463904) internal successors, (4271), 1399 states have internal predecessors, (4271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:42,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1400 states to 1400 states and 4271 transitions. [2022-01-18 14:06:42,927 INFO L78 Accepts]: Start accepts. Automaton has 1400 states and 4271 transitions. Word has length 26 [2022-01-18 14:06:42,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:42,928 INFO L470 AbstractCegarLoop]: Abstraction has 1400 states and 4271 transitions. [2022-01-18 14:06:42,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:42,928 INFO L276 IsEmpty]: Start isEmpty. Operand 1400 states and 4271 transitions. [2022-01-18 14:06:42,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:42,929 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:42,929 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:42,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-01-18 14:06:42,929 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:42,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:42,930 INFO L85 PathProgramCache]: Analyzing trace with hash -40159245, now seen corresponding path program 67 times [2022-01-18 14:06:42,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:42,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47420321] [2022-01-18 14:06:42,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:42,930 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:42,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:42,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:42,992 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:42,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47420321] [2022-01-18 14:06:42,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47420321] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:42,993 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:42,993 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:42,993 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603472368] [2022-01-18 14:06:42,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:42,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:42,993 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:42,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:42,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:42,993 INFO L87 Difference]: Start difference. First operand 1400 states and 4271 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:43,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:43,197 INFO L93 Difference]: Finished difference Result 1559 states and 4705 transitions. [2022-01-18 14:06:43,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:43,198 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:43,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:43,200 INFO L225 Difference]: With dead ends: 1559 [2022-01-18 14:06:43,200 INFO L226 Difference]: Without dead ends: 1474 [2022-01-18 14:06:43,200 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:43,200 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 45 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 650 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:43,203 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 222 Invalid, 660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 650 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:43,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2022-01-18 14:06:43,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1404. [2022-01-18 14:06:43,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1404 states, 1403 states have (on average 3.050605844618674) internal successors, (4280), 1403 states have internal predecessors, (4280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:43,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 4280 transitions. [2022-01-18 14:06:43,218 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 4280 transitions. Word has length 26 [2022-01-18 14:06:43,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:43,218 INFO L470 AbstractCegarLoop]: Abstraction has 1404 states and 4280 transitions. [2022-01-18 14:06:43,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:43,218 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 4280 transitions. [2022-01-18 14:06:43,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:43,220 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:43,220 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:43,220 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-01-18 14:06:43,220 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:43,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:43,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1368725167, now seen corresponding path program 68 times [2022-01-18 14:06:43,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:43,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631471595] [2022-01-18 14:06:43,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:43,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:43,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:43,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:43,291 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:43,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631471595] [2022-01-18 14:06:43,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631471595] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:43,291 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:43,291 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:43,291 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206190461] [2022-01-18 14:06:43,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:43,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:43,291 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:43,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:43,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:43,292 INFO L87 Difference]: Start difference. First operand 1404 states and 4280 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:43,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:43,519 INFO L93 Difference]: Finished difference Result 1599 states and 4818 transitions. [2022-01-18 14:06:43,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:43,519 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:43,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:43,521 INFO L225 Difference]: With dead ends: 1599 [2022-01-18 14:06:43,521 INFO L226 Difference]: Without dead ends: 1496 [2022-01-18 14:06:43,522 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:43,522 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 52 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 724 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:43,522 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 235 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 724 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:43,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1496 states. [2022-01-18 14:06:43,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1496 to 1402. [2022-01-18 14:06:43,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1402 states, 1401 states have (on average 3.054960742326909) internal successors, (4280), 1401 states have internal predecessors, (4280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:43,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1402 states to 1402 states and 4280 transitions. [2022-01-18 14:06:43,536 INFO L78 Accepts]: Start accepts. Automaton has 1402 states and 4280 transitions. Word has length 26 [2022-01-18 14:06:43,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:43,536 INFO L470 AbstractCegarLoop]: Abstraction has 1402 states and 4280 transitions. [2022-01-18 14:06:43,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:43,536 INFO L276 IsEmpty]: Start isEmpty. Operand 1402 states and 4280 transitions. [2022-01-18 14:06:43,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:43,538 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:43,538 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:43,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-01-18 14:06:43,538 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:43,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:43,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1591364523, now seen corresponding path program 69 times [2022-01-18 14:06:43,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:43,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285743353] [2022-01-18 14:06:43,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:43,538 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:43,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:43,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:43,608 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:43,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285743353] [2022-01-18 14:06:43,609 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285743353] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:43,609 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:43,609 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:43,609 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3865732] [2022-01-18 14:06:43,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:43,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:43,609 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:43,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:43,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:43,609 INFO L87 Difference]: Start difference. First operand 1402 states and 4280 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:43,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:43,812 INFO L93 Difference]: Finished difference Result 1713 states and 5194 transitions. [2022-01-18 14:06:43,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:43,812 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:43,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:43,815 INFO L225 Difference]: With dead ends: 1713 [2022-01-18 14:06:43,815 INFO L226 Difference]: Without dead ends: 1634 [2022-01-18 14:06:43,815 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:43,815 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 44 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 635 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:43,815 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 232 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 635 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:43,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1634 states. [2022-01-18 14:06:43,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1634 to 1411. [2022-01-18 14:06:43,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1411 states, 1410 states have (on average 3.0602836879432624) internal successors, (4315), 1410 states have internal predecessors, (4315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:43,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1411 states to 1411 states and 4315 transitions. [2022-01-18 14:06:43,830 INFO L78 Accepts]: Start accepts. Automaton has 1411 states and 4315 transitions. Word has length 26 [2022-01-18 14:06:43,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:43,830 INFO L470 AbstractCegarLoop]: Abstraction has 1411 states and 4315 transitions. [2022-01-18 14:06:43,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:43,830 INFO L276 IsEmpty]: Start isEmpty. Operand 1411 states and 4315 transitions. [2022-01-18 14:06:43,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:43,832 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:43,832 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:43,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-01-18 14:06:43,832 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:43,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:43,832 INFO L85 PathProgramCache]: Analyzing trace with hash 388318683, now seen corresponding path program 70 times [2022-01-18 14:06:43,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:43,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56299996] [2022-01-18 14:06:43,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:43,832 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:43,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:43,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:43,898 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:43,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56299996] [2022-01-18 14:06:43,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56299996] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:43,898 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:43,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:43,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660228517] [2022-01-18 14:06:43,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:43,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:43,899 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:43,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:43,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:43,899 INFO L87 Difference]: Start difference. First operand 1411 states and 4315 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:44,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:44,105 INFO L93 Difference]: Finished difference Result 1734 states and 5229 transitions. [2022-01-18 14:06:44,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:44,106 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:44,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:44,108 INFO L225 Difference]: With dead ends: 1734 [2022-01-18 14:06:44,108 INFO L226 Difference]: Without dead ends: 1639 [2022-01-18 14:06:44,109 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:44,109 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 46 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:44,109 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 234 Invalid, 677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 665 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:44,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1639 states. [2022-01-18 14:06:44,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1639 to 1415. [2022-01-18 14:06:44,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1415 states, 1414 states have (on average 3.0594059405940595) internal successors, (4326), 1414 states have internal predecessors, (4326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:44,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1415 states to 1415 states and 4326 transitions. [2022-01-18 14:06:44,124 INFO L78 Accepts]: Start accepts. Automaton has 1415 states and 4326 transitions. Word has length 26 [2022-01-18 14:06:44,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:44,124 INFO L470 AbstractCegarLoop]: Abstraction has 1415 states and 4326 transitions. [2022-01-18 14:06:44,124 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:44,124 INFO L276 IsEmpty]: Start isEmpty. Operand 1415 states and 4326 transitions. [2022-01-18 14:06:44,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:44,126 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:44,126 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:44,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-01-18 14:06:44,126 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:44,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:44,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1311458227, now seen corresponding path program 71 times [2022-01-18 14:06:44,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:44,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669237435] [2022-01-18 14:06:44,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:44,127 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:44,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:44,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:44,187 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:44,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669237435] [2022-01-18 14:06:44,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669237435] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:44,187 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:44,187 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:44,187 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198971842] [2022-01-18 14:06:44,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:44,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:44,187 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:44,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:44,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:44,188 INFO L87 Difference]: Start difference. First operand 1415 states and 4326 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:44,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:44,388 INFO L93 Difference]: Finished difference Result 1641 states and 4975 transitions. [2022-01-18 14:06:44,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:44,388 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:44,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:44,391 INFO L225 Difference]: With dead ends: 1641 [2022-01-18 14:06:44,391 INFO L226 Difference]: Without dead ends: 1551 [2022-01-18 14:06:44,391 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:44,391 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 45 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 646 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:44,391 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 224 Invalid, 658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 646 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:44,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1551 states. [2022-01-18 14:06:44,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1551 to 1409. [2022-01-18 14:06:44,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1409 states, 1408 states have (on average 3.061789772727273) internal successors, (4311), 1408 states have internal predecessors, (4311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:44,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1409 states to 1409 states and 4311 transitions. [2022-01-18 14:06:44,406 INFO L78 Accepts]: Start accepts. Automaton has 1409 states and 4311 transitions. Word has length 26 [2022-01-18 14:06:44,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:44,406 INFO L470 AbstractCegarLoop]: Abstraction has 1409 states and 4311 transitions. [2022-01-18 14:06:44,406 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:44,406 INFO L276 IsEmpty]: Start isEmpty. Operand 1409 states and 4311 transitions. [2022-01-18 14:06:44,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:44,408 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:44,408 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:44,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-01-18 14:06:44,408 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:44,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:44,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1906106807, now seen corresponding path program 72 times [2022-01-18 14:06:44,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:44,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482190405] [2022-01-18 14:06:44,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:44,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:44,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:44,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:44,468 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:44,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482190405] [2022-01-18 14:06:44,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482190405] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:44,468 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:44,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:06:44,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83703777] [2022-01-18 14:06:44,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:44,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:06:44,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:44,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:06:44,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:44,468 INFO L87 Difference]: Start difference. First operand 1409 states and 4311 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:44,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:44,643 INFO L93 Difference]: Finished difference Result 1735 states and 5254 transitions. [2022-01-18 14:06:44,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:06:44,644 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:44,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:44,646 INFO L225 Difference]: With dead ends: 1735 [2022-01-18 14:06:44,646 INFO L226 Difference]: Without dead ends: 1656 [2022-01-18 14:06:44,646 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:44,646 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 47 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:44,647 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 227 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:44,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1656 states. [2022-01-18 14:06:44,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1656 to 1445. [2022-01-18 14:06:44,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1445 states, 1444 states have (on average 3.059556786703601) internal successors, (4418), 1444 states have internal predecessors, (4418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:44,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 4418 transitions. [2022-01-18 14:06:44,662 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 4418 transitions. Word has length 26 [2022-01-18 14:06:44,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:44,662 INFO L470 AbstractCegarLoop]: Abstraction has 1445 states and 4418 transitions. [2022-01-18 14:06:44,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:44,662 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 4418 transitions. [2022-01-18 14:06:44,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:44,664 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:44,664 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:44,664 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-01-18 14:06:44,664 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:44,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:44,664 INFO L85 PathProgramCache]: Analyzing trace with hash -30194119, now seen corresponding path program 73 times [2022-01-18 14:06:44,664 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:44,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595513020] [2022-01-18 14:06:44,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:44,664 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:44,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:44,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:44,741 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:44,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595513020] [2022-01-18 14:06:44,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595513020] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:44,741 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:44,741 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:44,741 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117786169] [2022-01-18 14:06:44,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:44,741 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:44,741 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:44,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:44,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:44,741 INFO L87 Difference]: Start difference. First operand 1445 states and 4418 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:44,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:44,971 INFO L93 Difference]: Finished difference Result 1792 states and 5392 transitions. [2022-01-18 14:06:44,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:44,971 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:44,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:44,973 INFO L225 Difference]: With dead ends: 1792 [2022-01-18 14:06:44,974 INFO L226 Difference]: Without dead ends: 1611 [2022-01-18 14:06:44,974 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:44,974 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 61 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:44,974 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 287 Invalid, 710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 700 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:44,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1611 states. [2022-01-18 14:06:44,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1611 to 1435. [2022-01-18 14:06:44,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1435 states, 1434 states have (on average 3.0641562064156207) internal successors, (4394), 1434 states have internal predecessors, (4394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:44,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1435 states to 1435 states and 4394 transitions. [2022-01-18 14:06:44,989 INFO L78 Accepts]: Start accepts. Automaton has 1435 states and 4394 transitions. Word has length 26 [2022-01-18 14:06:44,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:44,989 INFO L470 AbstractCegarLoop]: Abstraction has 1435 states and 4394 transitions. [2022-01-18 14:06:44,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:44,989 INFO L276 IsEmpty]: Start isEmpty. Operand 1435 states and 4394 transitions. [2022-01-18 14:06:44,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:44,991 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:44,991 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:44,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-01-18 14:06:44,991 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:44,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:44,991 INFO L85 PathProgramCache]: Analyzing trace with hash 188366037, now seen corresponding path program 74 times [2022-01-18 14:06:44,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:44,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868713744] [2022-01-18 14:06:44,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:44,992 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:44,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:45,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:45,067 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:45,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868713744] [2022-01-18 14:06:45,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868713744] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:45,067 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:45,067 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:45,068 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123240495] [2022-01-18 14:06:45,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:45,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:45,068 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:45,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:45,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:45,068 INFO L87 Difference]: Start difference. First operand 1435 states and 4394 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:45,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:45,282 INFO L93 Difference]: Finished difference Result 1663 states and 5025 transitions. [2022-01-18 14:06:45,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:45,282 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:45,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:45,284 INFO L225 Difference]: With dead ends: 1663 [2022-01-18 14:06:45,284 INFO L226 Difference]: Without dead ends: 1584 [2022-01-18 14:06:45,284 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:45,285 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 49 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 667 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:45,285 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 264 Invalid, 677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 667 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:45,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1584 states. [2022-01-18 14:06:45,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1584 to 1437. [2022-01-18 14:06:45,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1437 states, 1436 states have (on average 3.0647632311977717) internal successors, (4401), 1436 states have internal predecessors, (4401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:45,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1437 states to 1437 states and 4401 transitions. [2022-01-18 14:06:45,300 INFO L78 Accepts]: Start accepts. Automaton has 1437 states and 4401 transitions. Word has length 26 [2022-01-18 14:06:45,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:45,300 INFO L470 AbstractCegarLoop]: Abstraction has 1437 states and 4401 transitions. [2022-01-18 14:06:45,300 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:45,300 INFO L276 IsEmpty]: Start isEmpty. Operand 1437 states and 4401 transitions. [2022-01-18 14:06:45,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:45,302 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:45,302 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:45,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-01-18 14:06:45,302 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:45,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:45,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1747934889, now seen corresponding path program 75 times [2022-01-18 14:06:45,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:45,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405366006] [2022-01-18 14:06:45,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:45,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:45,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:45,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:45,367 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:45,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405366006] [2022-01-18 14:06:45,367 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405366006] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:45,367 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:45,367 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:45,367 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899131604] [2022-01-18 14:06:45,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:45,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:45,367 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:45,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:45,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:45,368 INFO L87 Difference]: Start difference. First operand 1437 states and 4401 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:45,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:45,599 INFO L93 Difference]: Finished difference Result 1626 states and 4884 transitions. [2022-01-18 14:06:45,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:45,600 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:45,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:45,602 INFO L225 Difference]: With dead ends: 1626 [2022-01-18 14:06:45,602 INFO L226 Difference]: Without dead ends: 1531 [2022-01-18 14:06:45,602 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:45,602 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 54 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 721 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:45,602 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 260 Invalid, 729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 721 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:45,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1531 states. [2022-01-18 14:06:45,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1531 to 1451. [2022-01-18 14:06:45,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1451 states, 1450 states have (on average 3.0606896551724136) internal successors, (4438), 1450 states have internal predecessors, (4438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:45,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1451 states to 1451 states and 4438 transitions. [2022-01-18 14:06:45,617 INFO L78 Accepts]: Start accepts. Automaton has 1451 states and 4438 transitions. Word has length 26 [2022-01-18 14:06:45,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:45,617 INFO L470 AbstractCegarLoop]: Abstraction has 1451 states and 4438 transitions. [2022-01-18 14:06:45,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:45,617 INFO L276 IsEmpty]: Start isEmpty. Operand 1451 states and 4438 transitions. [2022-01-18 14:06:45,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:45,619 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:45,619 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:45,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-01-18 14:06:45,619 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:45,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:45,619 INFO L85 PathProgramCache]: Analyzing trace with hash 599120701, now seen corresponding path program 76 times [2022-01-18 14:06:45,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:45,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411148499] [2022-01-18 14:06:45,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:45,620 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:45,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:45,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:45,679 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:45,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411148499] [2022-01-18 14:06:45,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411148499] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:45,679 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:45,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:06:45,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685167632] [2022-01-18 14:06:45,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:45,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:06:45,679 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:45,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:06:45,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:45,680 INFO L87 Difference]: Start difference. First operand 1451 states and 4438 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:45,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:45,847 INFO L93 Difference]: Finished difference Result 1742 states and 5269 transitions. [2022-01-18 14:06:45,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:06:45,848 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:45,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:45,850 INFO L225 Difference]: With dead ends: 1742 [2022-01-18 14:06:45,850 INFO L226 Difference]: Without dead ends: 1653 [2022-01-18 14:06:45,850 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:45,850 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 45 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:45,851 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 213 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:45,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1653 states. [2022-01-18 14:06:45,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1653 to 1461. [2022-01-18 14:06:45,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1461 states, 1460 states have (on average 3.0595890410958906) internal successors, (4467), 1460 states have internal predecessors, (4467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:45,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1461 states to 1461 states and 4467 transitions. [2022-01-18 14:06:45,866 INFO L78 Accepts]: Start accepts. Automaton has 1461 states and 4467 transitions. Word has length 26 [2022-01-18 14:06:45,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:45,866 INFO L470 AbstractCegarLoop]: Abstraction has 1461 states and 4467 transitions. [2022-01-18 14:06:45,866 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:45,866 INFO L276 IsEmpty]: Start isEmpty. Operand 1461 states and 4467 transitions. [2022-01-18 14:06:45,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:45,868 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:45,868 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:45,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-01-18 14:06:45,868 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:45,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:45,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1244541503, now seen corresponding path program 77 times [2022-01-18 14:06:45,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:45,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811854436] [2022-01-18 14:06:45,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:45,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:45,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:45,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:45,953 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:45,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811854436] [2022-01-18 14:06:45,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811854436] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:45,953 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:45,953 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:45,953 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258858461] [2022-01-18 14:06:45,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:45,953 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:45,953 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:45,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:45,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:45,954 INFO L87 Difference]: Start difference. First operand 1461 states and 4467 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:46,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:46,179 INFO L93 Difference]: Finished difference Result 1678 states and 5043 transitions. [2022-01-18 14:06:46,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:46,180 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:46,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:46,182 INFO L225 Difference]: With dead ends: 1678 [2022-01-18 14:06:46,182 INFO L226 Difference]: Without dead ends: 1590 [2022-01-18 14:06:46,182 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:46,183 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 54 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 719 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:46,183 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 262 Invalid, 727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 719 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:46,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1590 states. [2022-01-18 14:06:46,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1590 to 1461. [2022-01-18 14:06:46,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1461 states, 1460 states have (on average 3.0595890410958906) internal successors, (4467), 1460 states have internal predecessors, (4467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:46,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1461 states to 1461 states and 4467 transitions. [2022-01-18 14:06:46,198 INFO L78 Accepts]: Start accepts. Automaton has 1461 states and 4467 transitions. Word has length 26 [2022-01-18 14:06:46,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:46,198 INFO L470 AbstractCegarLoop]: Abstraction has 1461 states and 4467 transitions. [2022-01-18 14:06:46,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:46,198 INFO L276 IsEmpty]: Start isEmpty. Operand 1461 states and 4467 transitions. [2022-01-18 14:06:46,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:46,200 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:46,200 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:46,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-01-18 14:06:46,200 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:46,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:46,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1332478237, now seen corresponding path program 78 times [2022-01-18 14:06:46,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:46,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112028696] [2022-01-18 14:06:46,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:46,201 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:46,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:46,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:46,271 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:46,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112028696] [2022-01-18 14:06:46,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112028696] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:46,272 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:46,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:46,272 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429815826] [2022-01-18 14:06:46,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:46,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:46,272 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:46,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:46,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:46,272 INFO L87 Difference]: Start difference. First operand 1461 states and 4467 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:46,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:46,476 INFO L93 Difference]: Finished difference Result 1816 states and 5475 transitions. [2022-01-18 14:06:46,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:46,476 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:46,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:46,479 INFO L225 Difference]: With dead ends: 1816 [2022-01-18 14:06:46,479 INFO L226 Difference]: Without dead ends: 1722 [2022-01-18 14:06:46,479 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:46,479 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 51 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 649 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:46,479 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 266 Invalid, 661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 649 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:46,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1722 states. [2022-01-18 14:06:46,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1722 to 1485. [2022-01-18 14:06:46,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1485 states, 1484 states have (on average 3.0633423180592994) internal successors, (4546), 1484 states have internal predecessors, (4546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:46,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1485 states to 1485 states and 4546 transitions. [2022-01-18 14:06:46,504 INFO L78 Accepts]: Start accepts. Automaton has 1485 states and 4546 transitions. Word has length 26 [2022-01-18 14:06:46,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:46,504 INFO L470 AbstractCegarLoop]: Abstraction has 1485 states and 4546 transitions. [2022-01-18 14:06:46,504 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:46,504 INFO L276 IsEmpty]: Start isEmpty. Operand 1485 states and 4546 transitions. [2022-01-18 14:06:46,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:46,506 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:46,506 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:46,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-01-18 14:06:46,506 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:46,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:46,506 INFO L85 PathProgramCache]: Analyzing trace with hash -430758349, now seen corresponding path program 79 times [2022-01-18 14:06:46,506 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:46,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140919919] [2022-01-18 14:06:46,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:46,506 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:46,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:46,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:46,571 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:46,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140919919] [2022-01-18 14:06:46,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140919919] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:46,571 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:46,571 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:06:46,571 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728445839] [2022-01-18 14:06:46,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:46,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:06:46,572 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:46,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:06:46,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:46,572 INFO L87 Difference]: Start difference. First operand 1485 states and 4546 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:46,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:46,753 INFO L93 Difference]: Finished difference Result 1851 states and 5576 transitions. [2022-01-18 14:06:46,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:06:46,753 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:46,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:46,756 INFO L225 Difference]: With dead ends: 1851 [2022-01-18 14:06:46,756 INFO L226 Difference]: Without dead ends: 1679 [2022-01-18 14:06:46,756 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:46,756 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 57 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 571 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:46,756 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 233 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 571 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:46,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1679 states. [2022-01-18 14:06:46,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1679 to 1453. [2022-01-18 14:06:46,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1453 states, 1452 states have (on average 3.0550964187327825) internal successors, (4436), 1452 states have internal predecessors, (4436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:46,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1453 states to 1453 states and 4436 transitions. [2022-01-18 14:06:46,771 INFO L78 Accepts]: Start accepts. Automaton has 1453 states and 4436 transitions. Word has length 26 [2022-01-18 14:06:46,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:46,771 INFO L470 AbstractCegarLoop]: Abstraction has 1453 states and 4436 transitions. [2022-01-18 14:06:46,772 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:46,772 INFO L276 IsEmpty]: Start isEmpty. Operand 1453 states and 4436 transitions. [2022-01-18 14:06:46,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:46,773 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:46,773 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:46,773 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-01-18 14:06:46,773 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:46,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:46,774 INFO L85 PathProgramCache]: Analyzing trace with hash -2010189995, now seen corresponding path program 80 times [2022-01-18 14:06:46,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:46,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557696483] [2022-01-18 14:06:46,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:46,774 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:46,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:46,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:46,838 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:46,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557696483] [2022-01-18 14:06:46,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557696483] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:46,838 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:46,838 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:46,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055607306] [2022-01-18 14:06:46,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:46,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:46,838 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:46,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:46,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:46,839 INFO L87 Difference]: Start difference. First operand 1453 states and 4436 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:47,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:47,065 INFO L93 Difference]: Finished difference Result 1732 states and 5178 transitions. [2022-01-18 14:06:47,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:47,065 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:47,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:47,067 INFO L225 Difference]: With dead ends: 1732 [2022-01-18 14:06:47,067 INFO L226 Difference]: Without dead ends: 1593 [2022-01-18 14:06:47,067 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:47,068 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 63 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 730 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 730 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:47,068 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 289 Invalid, 742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 730 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:47,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1593 states. [2022-01-18 14:06:47,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1593 to 1443. [2022-01-18 14:06:47,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1443 states, 1442 states have (on average 3.0485436893203883) internal successors, (4396), 1442 states have internal predecessors, (4396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:47,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1443 states to 1443 states and 4396 transitions. [2022-01-18 14:06:47,082 INFO L78 Accepts]: Start accepts. Automaton has 1443 states and 4396 transitions. Word has length 26 [2022-01-18 14:06:47,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:47,083 INFO L470 AbstractCegarLoop]: Abstraction has 1443 states and 4396 transitions. [2022-01-18 14:06:47,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:47,083 INFO L276 IsEmpty]: Start isEmpty. Operand 1443 states and 4396 transitions. [2022-01-18 14:06:47,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:47,084 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:47,085 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:47,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-01-18 14:06:47,085 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:47,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:47,085 INFO L85 PathProgramCache]: Analyzing trace with hash -209972843, now seen corresponding path program 81 times [2022-01-18 14:06:47,085 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:47,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995235992] [2022-01-18 14:06:47,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:47,085 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:47,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:47,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:47,145 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:47,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995235992] [2022-01-18 14:06:47,146 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995235992] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:47,146 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:47,146 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:06:47,146 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113124684] [2022-01-18 14:06:47,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:47,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:06:47,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:47,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:06:47,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:47,146 INFO L87 Difference]: Start difference. First operand 1443 states and 4396 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:47,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:47,310 INFO L93 Difference]: Finished difference Result 1745 states and 5234 transitions. [2022-01-18 14:06:47,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:06:47,311 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:47,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:47,313 INFO L225 Difference]: With dead ends: 1745 [2022-01-18 14:06:47,313 INFO L226 Difference]: Without dead ends: 1660 [2022-01-18 14:06:47,313 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:47,313 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 48 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:47,313 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 220 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 516 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:47,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1660 states. [2022-01-18 14:06:47,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1660 to 1481. [2022-01-18 14:06:47,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1481 states, 1480 states have (on average 3.050675675675676) internal successors, (4515), 1480 states have internal predecessors, (4515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:47,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1481 states to 1481 states and 4515 transitions. [2022-01-18 14:06:47,329 INFO L78 Accepts]: Start accepts. Automaton has 1481 states and 4515 transitions. Word has length 26 [2022-01-18 14:06:47,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:47,329 INFO L470 AbstractCegarLoop]: Abstraction has 1481 states and 4515 transitions. [2022-01-18 14:06:47,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:47,329 INFO L276 IsEmpty]: Start isEmpty. Operand 1481 states and 4515 transitions. [2022-01-18 14:06:47,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:47,331 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:47,331 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:47,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-01-18 14:06:47,331 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:47,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:47,331 INFO L85 PathProgramCache]: Analyzing trace with hash -2146273769, now seen corresponding path program 82 times [2022-01-18 14:06:47,331 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:47,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132672900] [2022-01-18 14:06:47,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:47,331 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:47,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:47,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:47,405 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:47,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132672900] [2022-01-18 14:06:47,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132672900] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:47,405 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:47,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:47,405 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259892297] [2022-01-18 14:06:47,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:47,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:47,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:47,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:47,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:47,406 INFO L87 Difference]: Start difference. First operand 1481 states and 4515 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:47,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:47,638 INFO L93 Difference]: Finished difference Result 1788 states and 5355 transitions. [2022-01-18 14:06:47,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:47,639 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:47,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:47,641 INFO L225 Difference]: With dead ends: 1788 [2022-01-18 14:06:47,641 INFO L226 Difference]: Without dead ends: 1595 [2022-01-18 14:06:47,642 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:47,642 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 62 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:47,642 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 279 Invalid, 698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 686 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:47,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1595 states. [2022-01-18 14:06:47,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1595 to 1441. [2022-01-18 14:06:47,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1441 states, 1440 states have (on average 3.0479166666666666) internal successors, (4389), 1440 states have internal predecessors, (4389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:47,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1441 states to 1441 states and 4389 transitions. [2022-01-18 14:06:47,659 INFO L78 Accepts]: Start accepts. Automaton has 1441 states and 4389 transitions. Word has length 26 [2022-01-18 14:06:47,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:47,659 INFO L470 AbstractCegarLoop]: Abstraction has 1441 states and 4389 transitions. [2022-01-18 14:06:47,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:47,659 INFO L276 IsEmpty]: Start isEmpty. Operand 1441 states and 4389 transitions. [2022-01-18 14:06:47,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:47,661 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:47,661 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:47,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-01-18 14:06:47,661 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:47,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:47,661 INFO L85 PathProgramCache]: Analyzing trace with hash 671411669, now seen corresponding path program 83 times [2022-01-18 14:06:47,661 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:47,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595152201] [2022-01-18 14:06:47,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:47,661 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:47,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:47,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:47,729 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:47,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595152201] [2022-01-18 14:06:47,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595152201] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:47,730 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:47,730 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:47,730 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171310638] [2022-01-18 14:06:47,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:47,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:47,730 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:47,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:47,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:47,730 INFO L87 Difference]: Start difference. First operand 1441 states and 4389 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:47,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:47,935 INFO L93 Difference]: Finished difference Result 1658 states and 4979 transitions. [2022-01-18 14:06:47,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:47,935 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:47,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:47,937 INFO L225 Difference]: With dead ends: 1658 [2022-01-18 14:06:47,937 INFO L226 Difference]: Without dead ends: 1573 [2022-01-18 14:06:47,938 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:47,938 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 51 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 660 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 660 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:47,938 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 258 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 660 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:47,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1573 states. [2022-01-18 14:06:47,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1573 to 1444. [2022-01-18 14:06:47,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1444 states, 1443 states have (on average 3.047124047124047) internal successors, (4397), 1443 states have internal predecessors, (4397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:47,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 4397 transitions. [2022-01-18 14:06:47,952 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 4397 transitions. Word has length 26 [2022-01-18 14:06:47,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:47,953 INFO L470 AbstractCegarLoop]: Abstraction has 1444 states and 4397 transitions. [2022-01-18 14:06:47,953 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:47,953 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 4397 transitions. [2022-01-18 14:06:47,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:47,954 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:47,954 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:47,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-01-18 14:06:47,954 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:47,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:47,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1264889257, now seen corresponding path program 84 times [2022-01-18 14:06:47,955 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:47,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144483784] [2022-01-18 14:06:47,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:47,955 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:47,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:48,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:48,021 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:48,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144483784] [2022-01-18 14:06:48,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144483784] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:48,022 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:48,022 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:48,022 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224705761] [2022-01-18 14:06:48,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:48,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:48,022 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:48,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:48,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:48,022 INFO L87 Difference]: Start difference. First operand 1444 states and 4397 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:48,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:48,247 INFO L93 Difference]: Finished difference Result 1729 states and 5190 transitions. [2022-01-18 14:06:48,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:48,248 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:48,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:48,251 INFO L225 Difference]: With dead ends: 1729 [2022-01-18 14:06:48,251 INFO L226 Difference]: Without dead ends: 1634 [2022-01-18 14:06:48,251 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:48,252 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 56 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 723 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:48,252 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 263 Invalid, 733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 723 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:48,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1634 states. [2022-01-18 14:06:48,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1634 to 1464. [2022-01-18 14:06:48,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1464 states, 1463 states have (on average 3.0457963089542037) internal successors, (4456), 1463 states have internal predecessors, (4456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:48,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1464 states to 1464 states and 4456 transitions. [2022-01-18 14:06:48,268 INFO L78 Accepts]: Start accepts. Automaton has 1464 states and 4456 transitions. Word has length 26 [2022-01-18 14:06:48,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:48,268 INFO L470 AbstractCegarLoop]: Abstraction has 1464 states and 4456 transitions. [2022-01-18 14:06:48,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:48,268 INFO L276 IsEmpty]: Start isEmpty. Operand 1464 states and 4456 transitions. [2022-01-18 14:06:48,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:48,270 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:48,270 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:48,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-01-18 14:06:48,270 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:48,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:48,270 INFO L85 PathProgramCache]: Analyzing trace with hash 2110896917, now seen corresponding path program 85 times [2022-01-18 14:06:48,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:48,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357105613] [2022-01-18 14:06:48,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:48,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:48,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:48,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:48,341 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:48,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357105613] [2022-01-18 14:06:48,341 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357105613] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:48,341 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:48,341 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:48,341 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718114295] [2022-01-18 14:06:48,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:48,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:48,341 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:48,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:48,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:48,342 INFO L87 Difference]: Start difference. First operand 1464 states and 4456 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:48,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:48,583 INFO L93 Difference]: Finished difference Result 1739 states and 5230 transitions. [2022-01-18 14:06:48,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:48,584 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:48,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:48,586 INFO L225 Difference]: With dead ends: 1739 [2022-01-18 14:06:48,586 INFO L226 Difference]: Without dead ends: 1609 [2022-01-18 14:06:48,586 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:48,586 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 58 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 732 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:48,586 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 266 Invalid, 744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 732 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:48,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1609 states. [2022-01-18 14:06:48,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1609 to 1469. [2022-01-18 14:06:48,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1469 states, 1468 states have (on average 3.034059945504087) internal successors, (4454), 1468 states have internal predecessors, (4454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:48,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1469 states to 1469 states and 4454 transitions. [2022-01-18 14:06:48,602 INFO L78 Accepts]: Start accepts. Automaton has 1469 states and 4454 transitions. Word has length 26 [2022-01-18 14:06:48,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:48,602 INFO L470 AbstractCegarLoop]: Abstraction has 1469 states and 4454 transitions. [2022-01-18 14:06:48,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:48,602 INFO L276 IsEmpty]: Start isEmpty. Operand 1469 states and 4454 transitions. [2022-01-18 14:06:48,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:48,603 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:48,603 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:48,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-01-18 14:06:48,604 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:48,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:48,604 INFO L85 PathProgramCache]: Analyzing trace with hash 463329651, now seen corresponding path program 86 times [2022-01-18 14:06:48,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:48,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872922547] [2022-01-18 14:06:48,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:48,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:48,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:48,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:48,681 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:48,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872922547] [2022-01-18 14:06:48,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872922547] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:48,681 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:48,681 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:48,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371654315] [2022-01-18 14:06:48,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:48,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:48,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:48,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:48,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:48,682 INFO L87 Difference]: Start difference. First operand 1469 states and 4454 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:48,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:48,921 INFO L93 Difference]: Finished difference Result 1598 states and 4788 transitions. [2022-01-18 14:06:48,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:48,921 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:48,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:48,924 INFO L225 Difference]: With dead ends: 1598 [2022-01-18 14:06:48,924 INFO L226 Difference]: Without dead ends: 1519 [2022-01-18 14:06:48,924 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:48,924 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 44 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:48,924 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 228 Invalid, 673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 665 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:48,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1519 states. [2022-01-18 14:06:48,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1519 to 1469. [2022-01-18 14:06:48,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1469 states, 1468 states have (on average 3.034059945504087) internal successors, (4454), 1468 states have internal predecessors, (4454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:48,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1469 states to 1469 states and 4454 transitions. [2022-01-18 14:06:48,939 INFO L78 Accepts]: Start accepts. Automaton has 1469 states and 4454 transitions. Word has length 26 [2022-01-18 14:06:48,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:48,939 INFO L470 AbstractCegarLoop]: Abstraction has 1469 states and 4454 transitions. [2022-01-18 14:06:48,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:48,939 INFO L276 IsEmpty]: Start isEmpty. Operand 1469 states and 4454 transitions. [2022-01-18 14:06:48,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:48,941 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:48,941 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:48,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-01-18 14:06:48,941 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:48,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:48,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1472971275, now seen corresponding path program 87 times [2022-01-18 14:06:48,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:48,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112402541] [2022-01-18 14:06:48,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:48,942 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:48,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:49,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:49,007 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:49,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112402541] [2022-01-18 14:06:49,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112402541] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:49,007 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:49,007 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:49,008 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33393743] [2022-01-18 14:06:49,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:49,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:49,008 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:49,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:49,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:49,008 INFO L87 Difference]: Start difference. First operand 1469 states and 4454 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:49,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:49,226 INFO L93 Difference]: Finished difference Result 1617 states and 4837 transitions. [2022-01-18 14:06:49,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:49,226 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:49,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:49,229 INFO L225 Difference]: With dead ends: 1617 [2022-01-18 14:06:49,229 INFO L226 Difference]: Without dead ends: 1522 [2022-01-18 14:06:49,229 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:49,229 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 49 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 715 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 715 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:49,229 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 226 Invalid, 723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 715 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:49,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1522 states. [2022-01-18 14:06:49,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1522 to 1471. [2022-01-18 14:06:49,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1471 states, 1470 states have (on average 3.033333333333333) internal successors, (4459), 1470 states have internal predecessors, (4459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:49,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1471 states to 1471 states and 4459 transitions. [2022-01-18 14:06:49,244 INFO L78 Accepts]: Start accepts. Automaton has 1471 states and 4459 transitions. Word has length 26 [2022-01-18 14:06:49,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:49,244 INFO L470 AbstractCegarLoop]: Abstraction has 1471 states and 4459 transitions. [2022-01-18 14:06:49,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:49,244 INFO L276 IsEmpty]: Start isEmpty. Operand 1471 states and 4459 transitions. [2022-01-18 14:06:49,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:49,246 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:49,246 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:49,246 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-01-18 14:06:49,246 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:49,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:49,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1105598891, now seen corresponding path program 88 times [2022-01-18 14:06:49,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:49,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093312815] [2022-01-18 14:06:49,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:49,246 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:49,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:49,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:49,317 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:49,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093312815] [2022-01-18 14:06:49,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093312815] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:49,317 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:49,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:49,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534722868] [2022-01-18 14:06:49,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:49,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:49,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:49,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:49,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:49,318 INFO L87 Difference]: Start difference. First operand 1471 states and 4459 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:49,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:49,524 INFO L93 Difference]: Finished difference Result 1682 states and 5045 transitions. [2022-01-18 14:06:49,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:49,524 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:49,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:49,526 INFO L225 Difference]: With dead ends: 1682 [2022-01-18 14:06:49,526 INFO L226 Difference]: Without dead ends: 1603 [2022-01-18 14:06:49,527 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:49,527 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 43 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:49,527 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 232 Invalid, 661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 651 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:49,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1603 states. [2022-01-18 14:06:49,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1603 to 1470. [2022-01-18 14:06:49,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1470 states, 1469 states have (on average 3.0326752893124573) internal successors, (4455), 1469 states have internal predecessors, (4455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:49,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 4455 transitions. [2022-01-18 14:06:49,542 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 4455 transitions. Word has length 26 [2022-01-18 14:06:49,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:49,542 INFO L470 AbstractCegarLoop]: Abstraction has 1470 states and 4455 transitions. [2022-01-18 14:06:49,542 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:49,542 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 4455 transitions. [2022-01-18 14:06:49,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:49,544 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:49,544 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:49,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-01-18 14:06:49,544 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:49,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:49,544 INFO L85 PathProgramCache]: Analyzing trace with hash 874084315, now seen corresponding path program 89 times [2022-01-18 14:06:49,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:49,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257185807] [2022-01-18 14:06:49,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:49,545 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:49,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:49,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:49,605 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:49,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257185807] [2022-01-18 14:06:49,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257185807] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:49,606 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:49,606 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:49,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591676031] [2022-01-18 14:06:49,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:49,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:49,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:49,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:49,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:49,606 INFO L87 Difference]: Start difference. First operand 1470 states and 4455 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:49,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:49,814 INFO L93 Difference]: Finished difference Result 1669 states and 5007 transitions. [2022-01-18 14:06:49,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:49,814 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:49,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:49,816 INFO L225 Difference]: With dead ends: 1669 [2022-01-18 14:06:49,816 INFO L226 Difference]: Without dead ends: 1580 [2022-01-18 14:06:49,817 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:49,817 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 45 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:49,817 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 232 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:49,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1580 states. [2022-01-18 14:06:49,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1580 to 1469. [2022-01-18 14:06:49,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1469 states, 1468 states have (on average 3.0306539509536785) internal successors, (4449), 1468 states have internal predecessors, (4449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:49,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1469 states to 1469 states and 4449 transitions. [2022-01-18 14:06:49,832 INFO L78 Accepts]: Start accepts. Automaton has 1469 states and 4449 transitions. Word has length 26 [2022-01-18 14:06:49,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:49,832 INFO L470 AbstractCegarLoop]: Abstraction has 1469 states and 4449 transitions. [2022-01-18 14:06:49,832 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:49,832 INFO L276 IsEmpty]: Start isEmpty. Operand 1469 states and 4449 transitions. [2022-01-18 14:06:49,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:49,833 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:49,833 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:49,833 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-01-18 14:06:49,834 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:49,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:49,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1519505117, now seen corresponding path program 90 times [2022-01-18 14:06:49,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:49,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853440538] [2022-01-18 14:06:49,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:49,834 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:49,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:49,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:49,914 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:49,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853440538] [2022-01-18 14:06:49,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853440538] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:49,914 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:49,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:49,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404777895] [2022-01-18 14:06:49,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:49,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:49,915 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:49,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:49,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:49,915 INFO L87 Difference]: Start difference. First operand 1469 states and 4449 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:50,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:50,143 INFO L93 Difference]: Finished difference Result 1654 states and 4951 transitions. [2022-01-18 14:06:50,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:50,144 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:50,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:50,146 INFO L225 Difference]: With dead ends: 1654 [2022-01-18 14:06:50,146 INFO L226 Difference]: Without dead ends: 1566 [2022-01-18 14:06:50,146 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:50,146 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 49 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:50,146 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 228 Invalid, 721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:50,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1566 states. [2022-01-18 14:06:50,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1566 to 1470. [2022-01-18 14:06:50,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1470 states, 1469 states have (on average 3.0313138189244384) internal successors, (4453), 1469 states have internal predecessors, (4453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:50,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 4453 transitions. [2022-01-18 14:06:50,161 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 4453 transitions. Word has length 26 [2022-01-18 14:06:50,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:50,161 INFO L470 AbstractCegarLoop]: Abstraction has 1470 states and 4453 transitions. [2022-01-18 14:06:50,161 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:50,161 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 4453 transitions. [2022-01-18 14:06:50,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:50,163 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:50,163 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:50,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-01-18 14:06:50,163 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:50,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:50,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1607441851, now seen corresponding path program 91 times [2022-01-18 14:06:50,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:50,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800715340] [2022-01-18 14:06:50,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:50,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:50,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:50,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:50,245 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:50,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800715340] [2022-01-18 14:06:50,245 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800715340] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:50,245 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:50,245 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:50,245 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172400764] [2022-01-18 14:06:50,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:50,245 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:50,246 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:50,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:50,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:50,246 INFO L87 Difference]: Start difference. First operand 1470 states and 4453 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:50,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:50,475 INFO L93 Difference]: Finished difference Result 1673 states and 4993 transitions. [2022-01-18 14:06:50,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:50,475 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:50,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:50,478 INFO L225 Difference]: With dead ends: 1673 [2022-01-18 14:06:50,478 INFO L226 Difference]: Without dead ends: 1579 [2022-01-18 14:06:50,478 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:50,478 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 46 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 671 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:50,478 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 230 Invalid, 681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 671 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:50,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1579 states. [2022-01-18 14:06:50,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1579 to 1475. [2022-01-18 14:06:50,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1475 states, 1474 states have (on average 3.03527815468114) internal successors, (4474), 1474 states have internal predecessors, (4474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:50,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1475 states to 1475 states and 4474 transitions. [2022-01-18 14:06:50,493 INFO L78 Accepts]: Start accepts. Automaton has 1475 states and 4474 transitions. Word has length 26 [2022-01-18 14:06:50,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:50,493 INFO L470 AbstractCegarLoop]: Abstraction has 1475 states and 4474 transitions. [2022-01-18 14:06:50,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:50,493 INFO L276 IsEmpty]: Start isEmpty. Operand 1475 states and 4474 transitions. [2022-01-18 14:06:50,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:50,495 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:50,495 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:50,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-01-18 14:06:50,495 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:50,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:50,495 INFO L85 PathProgramCache]: Analyzing trace with hash 256521685, now seen corresponding path program 92 times [2022-01-18 14:06:50,495 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:50,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976782227] [2022-01-18 14:06:50,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:50,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:50,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:50,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:50,571 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:50,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976782227] [2022-01-18 14:06:50,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976782227] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:50,572 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:50,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:50,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13370543] [2022-01-18 14:06:50,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:50,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:50,572 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:50,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:50,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:50,572 INFO L87 Difference]: Start difference. First operand 1475 states and 4474 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:50,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:50,829 INFO L93 Difference]: Finished difference Result 1627 states and 4876 transitions. [2022-01-18 14:06:50,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:50,829 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:50,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:50,832 INFO L225 Difference]: With dead ends: 1627 [2022-01-18 14:06:50,832 INFO L226 Difference]: Without dead ends: 1548 [2022-01-18 14:06:50,832 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:50,832 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 45 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 671 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:50,832 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 230 Invalid, 679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 671 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:50,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1548 states. [2022-01-18 14:06:50,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1548 to 1475. [2022-01-18 14:06:50,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1475 states, 1474 states have (on average 3.03527815468114) internal successors, (4474), 1474 states have internal predecessors, (4474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:50,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1475 states to 1475 states and 4474 transitions. [2022-01-18 14:06:50,847 INFO L78 Accepts]: Start accepts. Automaton has 1475 states and 4474 transitions. Word has length 26 [2022-01-18 14:06:50,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:50,847 INFO L470 AbstractCegarLoop]: Abstraction has 1475 states and 4474 transitions. [2022-01-18 14:06:50,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:50,848 INFO L276 IsEmpty]: Start isEmpty. Operand 1475 states and 4474 transitions. [2022-01-18 14:06:50,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:50,849 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:50,849 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:50,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-01-18 14:06:50,849 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:50,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:50,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1679779241, now seen corresponding path program 93 times [2022-01-18 14:06:50,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:50,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901956621] [2022-01-18 14:06:50,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:50,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:50,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:50,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:50,928 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:50,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901956621] [2022-01-18 14:06:50,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901956621] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:50,929 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:50,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:50,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11061892] [2022-01-18 14:06:50,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:50,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:50,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:50,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:50,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:50,929 INFO L87 Difference]: Start difference. First operand 1475 states and 4474 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:51,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:51,162 INFO L93 Difference]: Finished difference Result 1646 states and 4929 transitions. [2022-01-18 14:06:51,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:51,163 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:51,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:51,165 INFO L225 Difference]: With dead ends: 1646 [2022-01-18 14:06:51,165 INFO L226 Difference]: Without dead ends: 1551 [2022-01-18 14:06:51,165 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:51,166 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 50 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 721 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:51,166 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 228 Invalid, 729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 721 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:51,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1551 states. [2022-01-18 14:06:51,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1551 to 1478. [2022-01-18 14:06:51,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1478 states, 1477 states have (on average 3.034529451591063) internal successors, (4482), 1477 states have internal predecessors, (4482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:51,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1478 states to 1478 states and 4482 transitions. [2022-01-18 14:06:51,181 INFO L78 Accepts]: Start accepts. Automaton has 1478 states and 4482 transitions. Word has length 26 [2022-01-18 14:06:51,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:51,181 INFO L470 AbstractCegarLoop]: Abstraction has 1478 states and 4482 transitions. [2022-01-18 14:06:51,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:51,181 INFO L276 IsEmpty]: Start isEmpty. Operand 1478 states and 4482 transitions. [2022-01-18 14:06:51,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:51,183 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:51,183 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:51,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-01-18 14:06:51,183 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:51,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:51,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1958024533, now seen corresponding path program 94 times [2022-01-18 14:06:51,183 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:51,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686993283] [2022-01-18 14:06:51,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:51,184 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:51,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:51,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:51,247 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:51,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686993283] [2022-01-18 14:06:51,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686993283] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:51,248 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:51,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:51,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144565207] [2022-01-18 14:06:51,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:51,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:51,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:51,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:51,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:51,248 INFO L87 Difference]: Start difference. First operand 1478 states and 4482 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:51,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:51,451 INFO L93 Difference]: Finished difference Result 1664 states and 4981 transitions. [2022-01-18 14:06:51,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:51,452 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:51,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:51,454 INFO L225 Difference]: With dead ends: 1664 [2022-01-18 14:06:51,454 INFO L226 Difference]: Without dead ends: 1579 [2022-01-18 14:06:51,454 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:51,454 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 45 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 644 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:51,454 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 226 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 644 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:51,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1579 states. [2022-01-18 14:06:51,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1579 to 1477. [2022-01-18 14:06:51,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1477 states, 1476 states have (on average 3.0318428184281845) internal successors, (4475), 1476 states have internal predecessors, (4475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:51,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1477 states to 1477 states and 4475 transitions. [2022-01-18 14:06:51,469 INFO L78 Accepts]: Start accepts. Automaton has 1477 states and 4475 transitions. Word has length 26 [2022-01-18 14:06:51,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:51,470 INFO L470 AbstractCegarLoop]: Abstraction has 1477 states and 4475 transitions. [2022-01-18 14:06:51,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:51,470 INFO L276 IsEmpty]: Start isEmpty. Operand 1477 states and 4475 transitions. [2022-01-18 14:06:51,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:51,471 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:51,471 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:51,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-01-18 14:06:51,471 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:51,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:51,472 INFO L85 PathProgramCache]: Analyzing trace with hash 629458611, now seen corresponding path program 95 times [2022-01-18 14:06:51,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:51,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405357821] [2022-01-18 14:06:51,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:51,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:51,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:51,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:51,532 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:51,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405357821] [2022-01-18 14:06:51,532 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405357821] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:51,532 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:51,532 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:51,532 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260239515] [2022-01-18 14:06:51,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:51,532 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:51,532 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:51,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:51,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:51,533 INFO L87 Difference]: Start difference. First operand 1477 states and 4475 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:51,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:51,756 INFO L93 Difference]: Finished difference Result 1654 states and 4965 transitions. [2022-01-18 14:06:51,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:51,756 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:51,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:51,759 INFO L225 Difference]: With dead ends: 1654 [2022-01-18 14:06:51,759 INFO L226 Difference]: Without dead ends: 1554 [2022-01-18 14:06:51,759 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:51,759 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 52 mSDsluCounter, 475 mSDsCounter, 0 mSdLazyCounter, 730 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 730 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:51,759 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 231 Invalid, 740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 730 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:51,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1554 states. [2022-01-18 14:06:51,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1554 to 1475. [2022-01-18 14:06:51,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1475 states, 1474 states have (on average 3.0345997286295794) internal successors, (4473), 1474 states have internal predecessors, (4473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:51,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1475 states to 1475 states and 4473 transitions. [2022-01-18 14:06:51,774 INFO L78 Accepts]: Start accepts. Automaton has 1475 states and 4473 transitions. Word has length 26 [2022-01-18 14:06:51,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:51,774 INFO L470 AbstractCegarLoop]: Abstraction has 1475 states and 4473 transitions. [2022-01-18 14:06:51,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:51,774 INFO L276 IsEmpty]: Start isEmpty. Operand 1475 states and 4473 transitions. [2022-01-18 14:06:51,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:51,776 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:51,776 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:51,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-01-18 14:06:51,776 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:51,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:51,776 INFO L85 PathProgramCache]: Analyzing trace with hash 456182079, now seen corresponding path program 96 times [2022-01-18 14:06:51,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:51,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825515243] [2022-01-18 14:06:51,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:51,777 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:51,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:51,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:51,848 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:51,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825515243] [2022-01-18 14:06:51,848 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825515243] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:51,848 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:51,848 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:51,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404426306] [2022-01-18 14:06:51,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:51,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:51,848 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:51,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:51,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:51,848 INFO L87 Difference]: Start difference. First operand 1475 states and 4473 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:52,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:52,071 INFO L93 Difference]: Finished difference Result 1649 states and 4952 transitions. [2022-01-18 14:06:52,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:52,071 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:52,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:52,074 INFO L225 Difference]: With dead ends: 1649 [2022-01-18 14:06:52,074 INFO L226 Difference]: Without dead ends: 1561 [2022-01-18 14:06:52,074 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:52,074 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 50 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 715 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 715 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:52,074 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 232 Invalid, 725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 715 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:52,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1561 states. [2022-01-18 14:06:52,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1561 to 1481. [2022-01-18 14:06:52,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1481 states, 1480 states have (on average 3.0344594594594594) internal successors, (4491), 1480 states have internal predecessors, (4491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:52,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1481 states to 1481 states and 4491 transitions. [2022-01-18 14:06:52,089 INFO L78 Accepts]: Start accepts. Automaton has 1481 states and 4491 transitions. Word has length 26 [2022-01-18 14:06:52,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:52,089 INFO L470 AbstractCegarLoop]: Abstraction has 1481 states and 4491 transitions. [2022-01-18 14:06:52,089 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:52,089 INFO L276 IsEmpty]: Start isEmpty. Operand 1481 states and 4491 transitions. [2022-01-18 14:06:52,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:52,091 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:52,091 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:52,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-01-18 14:06:52,091 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:52,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:52,091 INFO L85 PathProgramCache]: Analyzing trace with hash 544118813, now seen corresponding path program 97 times [2022-01-18 14:06:52,092 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:52,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515816133] [2022-01-18 14:06:52,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:52,092 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:52,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:52,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:52,153 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:52,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515816133] [2022-01-18 14:06:52,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515816133] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:52,153 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:52,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:52,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108371902] [2022-01-18 14:06:52,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:52,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:52,154 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:52,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:52,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:52,154 INFO L87 Difference]: Start difference. First operand 1481 states and 4491 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:52,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:52,365 INFO L93 Difference]: Finished difference Result 1675 states and 4997 transitions. [2022-01-18 14:06:52,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:52,365 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:52,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:52,368 INFO L225 Difference]: With dead ends: 1675 [2022-01-18 14:06:52,368 INFO L226 Difference]: Without dead ends: 1583 [2022-01-18 14:06:52,368 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:52,368 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 47 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 673 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:52,368 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 234 Invalid, 685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 673 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:52,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1583 states. [2022-01-18 14:06:52,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1583 to 1479. [2022-01-18 14:06:52,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1479 states, 1478 states have (on average 3.031123139377537) internal successors, (4480), 1478 states have internal predecessors, (4480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:52,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1479 states to 1479 states and 4480 transitions. [2022-01-18 14:06:52,394 INFO L78 Accepts]: Start accepts. Automaton has 1479 states and 4480 transitions. Word has length 26 [2022-01-18 14:06:52,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:52,394 INFO L470 AbstractCegarLoop]: Abstraction has 1479 states and 4480 transitions. [2022-01-18 14:06:52,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:52,394 INFO L276 IsEmpty]: Start isEmpty. Operand 1479 states and 4480 transitions. [2022-01-18 14:06:52,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:52,396 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:52,396 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:52,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2022-01-18 14:06:52,396 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:52,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:52,396 INFO L85 PathProgramCache]: Analyzing trace with hash -935962467, now seen corresponding path program 98 times [2022-01-18 14:06:52,396 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:52,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621531266] [2022-01-18 14:06:52,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:52,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:52,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:52,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:52,459 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:52,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621531266] [2022-01-18 14:06:52,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621531266] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:52,459 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:52,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:52,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017163589] [2022-01-18 14:06:52,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:52,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:52,460 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:52,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:52,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:52,460 INFO L87 Difference]: Start difference. First operand 1479 states and 4480 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:52,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:52,684 INFO L93 Difference]: Finished difference Result 1599 states and 4788 transitions. [2022-01-18 14:06:52,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:52,684 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:52,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:52,687 INFO L225 Difference]: With dead ends: 1599 [2022-01-18 14:06:52,687 INFO L226 Difference]: Without dead ends: 1480 [2022-01-18 14:06:52,687 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:52,687 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 52 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 726 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:52,687 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 233 Invalid, 738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 726 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:52,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1480 states. [2022-01-18 14:06:52,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1480 to 1444. [2022-01-18 14:06:52,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1444 states, 1443 states have (on average 3.044352044352044) internal successors, (4393), 1443 states have internal predecessors, (4393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:52,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 4393 transitions. [2022-01-18 14:06:52,702 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 4393 transitions. Word has length 26 [2022-01-18 14:06:52,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:52,702 INFO L470 AbstractCegarLoop]: Abstraction has 1444 states and 4393 transitions. [2022-01-18 14:06:52,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:52,702 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 4393 transitions. [2022-01-18 14:06:52,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:52,704 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:52,704 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:52,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-01-18 14:06:52,704 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:52,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:52,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1375996709, now seen corresponding path program 99 times [2022-01-18 14:06:52,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:52,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901837903] [2022-01-18 14:06:52,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:52,705 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:52,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:52,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:52,750 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:52,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901837903] [2022-01-18 14:06:52,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901837903] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:52,750 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:52,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 14:06:52,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567618326] [2022-01-18 14:06:52,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:52,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 14:06:52,751 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:52,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 14:06:52,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-18 14:06:52,751 INFO L87 Difference]: Start difference. First operand 1444 states and 4393 transitions. Second operand has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:52,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:52,903 INFO L93 Difference]: Finished difference Result 1798 states and 5382 transitions. [2022-01-18 14:06:52,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 14:06:52,904 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:52,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:52,906 INFO L225 Difference]: With dead ends: 1798 [2022-01-18 14:06:52,906 INFO L226 Difference]: Without dead ends: 1641 [2022-01-18 14:06:52,906 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-18 14:06:52,907 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 54 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:52,907 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 197 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 14:06:52,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1641 states. [2022-01-18 14:06:52,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1641 to 1518. [2022-01-18 14:06:52,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1518 states, 1517 states have (on average 3.03955174686882) internal successors, (4611), 1517 states have internal predecessors, (4611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:52,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1518 states to 1518 states and 4611 transitions. [2022-01-18 14:06:52,923 INFO L78 Accepts]: Start accepts. Automaton has 1518 states and 4611 transitions. Word has length 26 [2022-01-18 14:06:52,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:52,923 INFO L470 AbstractCegarLoop]: Abstraction has 1518 states and 4611 transitions. [2022-01-18 14:06:52,923 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:52,923 INFO L276 IsEmpty]: Start isEmpty. Operand 1518 states and 4611 transitions. [2022-01-18 14:06:52,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:52,924 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:52,924 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:52,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2022-01-18 14:06:52,925 INFO L402 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:52,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:52,925 INFO L85 PathProgramCache]: Analyzing trace with hash 802701469, now seen corresponding path program 100 times [2022-01-18 14:06:52,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:52,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624524728] [2022-01-18 14:06:52,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:52,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:52,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:52,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:52,975 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:52,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624524728] [2022-01-18 14:06:52,976 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624524728] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:52,976 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:52,976 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:06:52,976 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569859717] [2022-01-18 14:06:52,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:52,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:06:52,976 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:52,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:06:52,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:52,976 INFO L87 Difference]: Start difference. First operand 1518 states and 4611 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:53,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:53,178 INFO L93 Difference]: Finished difference Result 1800 states and 5385 transitions. [2022-01-18 14:06:53,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:06:53,178 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:53,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:53,181 INFO L225 Difference]: With dead ends: 1800 [2022-01-18 14:06:53,181 INFO L226 Difference]: Without dead ends: 1650 [2022-01-18 14:06:53,181 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:53,182 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 60 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 600 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:53,182 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 250 Invalid, 608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 600 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:53,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1650 states. [2022-01-18 14:06:53,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1650 to 1502. [2022-01-18 14:06:53,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1502 states, 1501 states have (on average 3.0439706862091938) internal successors, (4569), 1501 states have internal predecessors, (4569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:53,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1502 states to 1502 states and 4569 transitions. [2022-01-18 14:06:53,200 INFO L78 Accepts]: Start accepts. Automaton has 1502 states and 4569 transitions. Word has length 26 [2022-01-18 14:06:53,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:53,200 INFO L470 AbstractCegarLoop]: Abstraction has 1502 states and 4569 transitions. [2022-01-18 14:06:53,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:53,201 INFO L276 IsEmpty]: Start isEmpty. Operand 1502 states and 4569 transitions. [2022-01-18 14:06:53,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:53,203 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:53,203 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:53,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2022-01-18 14:06:53,203 INFO L402 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:53,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:53,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1582804675, now seen corresponding path program 101 times [2022-01-18 14:06:53,203 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:53,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941317500] [2022-01-18 14:06:53,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:53,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:53,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:53,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:53,257 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:53,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941317500] [2022-01-18 14:06:53,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941317500] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:53,257 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:53,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:06:53,259 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682622565] [2022-01-18 14:06:53,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:53,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:06:53,259 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:53,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:06:53,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:53,259 INFO L87 Difference]: Start difference. First operand 1502 states and 4569 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:53,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:53,443 INFO L93 Difference]: Finished difference Result 1960 states and 5843 transitions. [2022-01-18 14:06:53,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:06:53,444 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:53,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:53,446 INFO L225 Difference]: With dead ends: 1960 [2022-01-18 14:06:53,446 INFO L226 Difference]: Without dead ends: 1674 [2022-01-18 14:06:53,446 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:53,446 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 65 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:53,446 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 255 Invalid, 600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:53,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1674 states. [2022-01-18 14:06:53,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1674 to 1624. [2022-01-18 14:06:53,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1624 states, 1623 states have (on average 2.9981515711645104) internal successors, (4866), 1623 states have internal predecessors, (4866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:53,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1624 states to 1624 states and 4866 transitions. [2022-01-18 14:06:53,463 INFO L78 Accepts]: Start accepts. Automaton has 1624 states and 4866 transitions. Word has length 26 [2022-01-18 14:06:53,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:53,463 INFO L470 AbstractCegarLoop]: Abstraction has 1624 states and 4866 transitions. [2022-01-18 14:06:53,463 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:53,463 INFO L276 IsEmpty]: Start isEmpty. Operand 1624 states and 4866 transitions. [2022-01-18 14:06:53,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:53,465 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:53,465 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:53,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2022-01-18 14:06:53,466 INFO L402 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:53,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:53,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1282346073, now seen corresponding path program 102 times [2022-01-18 14:06:53,466 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:53,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032126363] [2022-01-18 14:06:53,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:53,466 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:53,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:53,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:53,522 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:53,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032126363] [2022-01-18 14:06:53,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032126363] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:53,522 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:53,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:53,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734173081] [2022-01-18 14:06:53,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:53,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:53,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:53,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:53,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:53,523 INFO L87 Difference]: Start difference. First operand 1624 states and 4866 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:53,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:53,743 INFO L93 Difference]: Finished difference Result 1845 states and 5416 transitions. [2022-01-18 14:06:53,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:53,744 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:53,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:53,746 INFO L225 Difference]: With dead ends: 1845 [2022-01-18 14:06:53,746 INFO L226 Difference]: Without dead ends: 1600 [2022-01-18 14:06:53,746 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:53,746 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 69 mSDsluCounter, 560 mSDsCounter, 0 mSdLazyCounter, 716 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:53,746 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 312 Invalid, 728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 716 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:53,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1600 states. [2022-01-18 14:06:53,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1600 to 1516. [2022-01-18 14:06:53,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1516 states, 1515 states have (on average 2.9584158415841584) internal successors, (4482), 1515 states have internal predecessors, (4482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:53,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1516 states to 1516 states and 4482 transitions. [2022-01-18 14:06:53,761 INFO L78 Accepts]: Start accepts. Automaton has 1516 states and 4482 transitions. Word has length 26 [2022-01-18 14:06:53,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:53,761 INFO L470 AbstractCegarLoop]: Abstraction has 1516 states and 4482 transitions. [2022-01-18 14:06:53,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:53,761 INFO L276 IsEmpty]: Start isEmpty. Operand 1516 states and 4482 transitions. [2022-01-18 14:06:53,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:53,763 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:53,763 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:53,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2022-01-18 14:06:53,763 INFO L402 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:53,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:53,763 INFO L85 PathProgramCache]: Analyzing trace with hash 571020857, now seen corresponding path program 103 times [2022-01-18 14:06:53,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:53,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983297238] [2022-01-18 14:06:53,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:53,764 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:53,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:53,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:53,825 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:53,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983297238] [2022-01-18 14:06:53,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983297238] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:53,825 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:53,825 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:53,825 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180788162] [2022-01-18 14:06:53,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:53,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:53,826 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:53,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:53,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:53,826 INFO L87 Difference]: Start difference. First operand 1516 states and 4482 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:54,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:54,050 INFO L93 Difference]: Finished difference Result 1776 states and 5183 transitions. [2022-01-18 14:06:54,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:54,050 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:54,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:54,052 INFO L225 Difference]: With dead ends: 1776 [2022-01-18 14:06:54,053 INFO L226 Difference]: Without dead ends: 1640 [2022-01-18 14:06:54,053 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:54,053 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 62 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 725 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:54,053 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 290 Invalid, 737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 725 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:54,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1640 states. [2022-01-18 14:06:54,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1640 to 1518. [2022-01-18 14:06:54,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1518 states, 1517 states have (on average 2.95385629531971) internal successors, (4481), 1517 states have internal predecessors, (4481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:54,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1518 states to 1518 states and 4481 transitions. [2022-01-18 14:06:54,068 INFO L78 Accepts]: Start accepts. Automaton has 1518 states and 4481 transitions. Word has length 26 [2022-01-18 14:06:54,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:54,068 INFO L470 AbstractCegarLoop]: Abstraction has 1518 states and 4481 transitions. [2022-01-18 14:06:54,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:54,068 INFO L276 IsEmpty]: Start isEmpty. Operand 1518 states and 4481 transitions. [2022-01-18 14:06:54,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:54,070 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:54,070 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:54,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2022-01-18 14:06:54,070 INFO L402 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:54,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:54,070 INFO L85 PathProgramCache]: Analyzing trace with hash -997907685, now seen corresponding path program 104 times [2022-01-18 14:06:54,070 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:54,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128787600] [2022-01-18 14:06:54,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:54,070 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:54,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:54,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:54,140 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:54,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128787600] [2022-01-18 14:06:54,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128787600] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:54,140 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:54,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:54,141 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064759380] [2022-01-18 14:06:54,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:54,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:54,141 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:54,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:54,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:54,141 INFO L87 Difference]: Start difference. First operand 1518 states and 4481 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:54,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:54,380 INFO L93 Difference]: Finished difference Result 1746 states and 5066 transitions. [2022-01-18 14:06:54,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:54,380 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:54,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:54,383 INFO L225 Difference]: With dead ends: 1746 [2022-01-18 14:06:54,383 INFO L226 Difference]: Without dead ends: 1617 [2022-01-18 14:06:54,383 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:54,383 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 61 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 723 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:54,383 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 286 Invalid, 733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 723 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:54,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1617 states. [2022-01-18 14:06:54,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1617 to 1514. [2022-01-18 14:06:54,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1514 states, 1513 states have (on average 2.9543952412425645) internal successors, (4470), 1513 states have internal predecessors, (4470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:54,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1514 states to 1514 states and 4470 transitions. [2022-01-18 14:06:54,398 INFO L78 Accepts]: Start accepts. Automaton has 1514 states and 4470 transitions. Word has length 26 [2022-01-18 14:06:54,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:54,398 INFO L470 AbstractCegarLoop]: Abstraction has 1514 states and 4470 transitions. [2022-01-18 14:06:54,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:54,398 INFO L276 IsEmpty]: Start isEmpty. Operand 1514 states and 4470 transitions. [2022-01-18 14:06:54,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:54,399 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:54,399 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:54,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2022-01-18 14:06:54,400 INFO L402 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:54,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:54,400 INFO L85 PathProgramCache]: Analyzing trace with hash 981775521, now seen corresponding path program 105 times [2022-01-18 14:06:54,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:54,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008521439] [2022-01-18 14:06:54,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:54,400 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:54,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:54,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:54,478 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:54,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008521439] [2022-01-18 14:06:54,478 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008521439] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:54,478 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:54,478 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:54,478 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641154059] [2022-01-18 14:06:54,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:54,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:54,478 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:54,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:54,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:54,479 INFO L87 Difference]: Start difference. First operand 1514 states and 4470 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:54,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:54,712 INFO L93 Difference]: Finished difference Result 1698 states and 4924 transitions. [2022-01-18 14:06:54,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:54,712 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:54,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:54,715 INFO L225 Difference]: With dead ends: 1698 [2022-01-18 14:06:54,715 INFO L226 Difference]: Without dead ends: 1552 [2022-01-18 14:06:54,715 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:54,715 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 63 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:54,715 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 287 Invalid, 746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 734 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:54,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1552 states. [2022-01-18 14:06:54,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1552 to 1502. [2022-01-18 14:06:54,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1502 states, 1501 states have (on average 2.9573617588274486) internal successors, (4439), 1501 states have internal predecessors, (4439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:54,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1502 states to 1502 states and 4439 transitions. [2022-01-18 14:06:54,732 INFO L78 Accepts]: Start accepts. Automaton has 1502 states and 4439 transitions. Word has length 26 [2022-01-18 14:06:54,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:54,732 INFO L470 AbstractCegarLoop]: Abstraction has 1502 states and 4439 transitions. [2022-01-18 14:06:54,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:54,732 INFO L276 IsEmpty]: Start isEmpty. Operand 1502 states and 4439 transitions. [2022-01-18 14:06:54,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:54,733 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:54,733 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:54,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2022-01-18 14:06:54,734 INFO L402 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:54,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:54,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1567915523, now seen corresponding path program 106 times [2022-01-18 14:06:54,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:54,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494897256] [2022-01-18 14:06:54,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:54,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:54,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:54,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:54,805 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:54,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494897256] [2022-01-18 14:06:54,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494897256] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:54,805 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:54,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:54,805 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610210699] [2022-01-18 14:06:54,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:54,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:54,805 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:54,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:54,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:54,806 INFO L87 Difference]: Start difference. First operand 1502 states and 4439 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:55,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:55,024 INFO L93 Difference]: Finished difference Result 1727 states and 5036 transitions. [2022-01-18 14:06:55,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:55,024 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:55,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:55,027 INFO L225 Difference]: With dead ends: 1727 [2022-01-18 14:06:55,027 INFO L226 Difference]: Without dead ends: 1598 [2022-01-18 14:06:55,027 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:55,027 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 60 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 711 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 711 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:55,027 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 288 Invalid, 723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 711 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:55,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1598 states. [2022-01-18 14:06:55,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1598 to 1526. [2022-01-18 14:06:55,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1526 states, 1525 states have (on average 2.954098360655738) internal successors, (4505), 1525 states have internal predecessors, (4505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:55,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1526 states to 1526 states and 4505 transitions. [2022-01-18 14:06:55,042 INFO L78 Accepts]: Start accepts. Automaton has 1526 states and 4505 transitions. Word has length 26 [2022-01-18 14:06:55,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:55,042 INFO L470 AbstractCegarLoop]: Abstraction has 1526 states and 4505 transitions. [2022-01-18 14:06:55,042 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:55,042 INFO L276 IsEmpty]: Start isEmpty. Operand 1526 states and 4505 transitions. [2022-01-18 14:06:55,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:55,044 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:55,044 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:55,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2022-01-18 14:06:55,044 INFO L402 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:55,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:55,044 INFO L85 PathProgramCache]: Analyzing trace with hash 411767683, now seen corresponding path program 107 times [2022-01-18 14:06:55,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:55,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946004318] [2022-01-18 14:06:55,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:55,045 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:55,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:55,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:55,115 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:55,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946004318] [2022-01-18 14:06:55,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946004318] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:55,115 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:55,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:55,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998310297] [2022-01-18 14:06:55,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:55,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:55,116 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:55,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:55,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:55,116 INFO L87 Difference]: Start difference. First operand 1526 states and 4505 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:55,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:55,344 INFO L93 Difference]: Finished difference Result 1850 states and 5404 transitions. [2022-01-18 14:06:55,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:55,344 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:55,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:55,346 INFO L225 Difference]: With dead ends: 1850 [2022-01-18 14:06:55,347 INFO L226 Difference]: Without dead ends: 1689 [2022-01-18 14:06:55,347 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:55,347 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 63 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 738 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:55,347 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 285 Invalid, 748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 738 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:55,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1689 states. [2022-01-18 14:06:55,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1689 to 1590. [2022-01-18 14:06:55,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1590 states, 1589 states have (on average 2.947136563876652) internal successors, (4683), 1589 states have internal predecessors, (4683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:55,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1590 states to 1590 states and 4683 transitions. [2022-01-18 14:06:55,363 INFO L78 Accepts]: Start accepts. Automaton has 1590 states and 4683 transitions. Word has length 26 [2022-01-18 14:06:55,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:55,363 INFO L470 AbstractCegarLoop]: Abstraction has 1590 states and 4683 transitions. [2022-01-18 14:06:55,363 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:55,363 INFO L276 IsEmpty]: Start isEmpty. Operand 1590 states and 4683 transitions. [2022-01-18 14:06:55,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:55,365 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:55,365 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:55,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2022-01-18 14:06:55,365 INFO L402 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:55,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:55,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1145125219, now seen corresponding path program 108 times [2022-01-18 14:06:55,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:55,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188580959] [2022-01-18 14:06:55,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:55,365 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:55,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:55,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:55,431 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:55,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188580959] [2022-01-18 14:06:55,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188580959] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:55,432 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:55,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:55,432 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726101120] [2022-01-18 14:06:55,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:55,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:55,432 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:55,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:55,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:55,432 INFO L87 Difference]: Start difference. First operand 1590 states and 4683 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:55,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:55,656 INFO L93 Difference]: Finished difference Result 1788 states and 5178 transitions. [2022-01-18 14:06:55,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:55,656 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:55,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:55,659 INFO L225 Difference]: With dead ends: 1788 [2022-01-18 14:06:55,659 INFO L226 Difference]: Without dead ends: 1636 [2022-01-18 14:06:55,659 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:55,659 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 64 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 740 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 740 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:55,659 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 289 Invalid, 752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 740 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:55,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1636 states. [2022-01-18 14:06:55,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1636 to 1524. [2022-01-18 14:06:55,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1524 states, 1523 states have (on average 2.9507550886408405) internal successors, (4494), 1523 states have internal predecessors, (4494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:55,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1524 states to 1524 states and 4494 transitions. [2022-01-18 14:06:55,674 INFO L78 Accepts]: Start accepts. Automaton has 1524 states and 4494 transitions. Word has length 26 [2022-01-18 14:06:55,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:55,674 INFO L470 AbstractCegarLoop]: Abstraction has 1524 states and 4494 transitions. [2022-01-18 14:06:55,674 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:55,674 INFO L276 IsEmpty]: Start isEmpty. Operand 1524 states and 4494 transitions. [2022-01-18 14:06:55,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:55,676 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:55,676 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:55,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2022-01-18 14:06:55,676 INFO L402 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:55,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:55,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1452003481, now seen corresponding path program 109 times [2022-01-18 14:06:55,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:55,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984529488] [2022-01-18 14:06:55,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:55,677 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:55,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:55,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:55,743 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:55,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984529488] [2022-01-18 14:06:55,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984529488] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:55,743 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:55,744 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:55,744 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491541802] [2022-01-18 14:06:55,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:55,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:55,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:55,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:55,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:55,744 INFO L87 Difference]: Start difference. First operand 1524 states and 4494 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:55,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:55,971 INFO L93 Difference]: Finished difference Result 1802 states and 5245 transitions. [2022-01-18 14:06:55,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:55,971 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:55,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:55,974 INFO L225 Difference]: With dead ends: 1802 [2022-01-18 14:06:55,974 INFO L226 Difference]: Without dead ends: 1586 [2022-01-18 14:06:55,974 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:55,974 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 70 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 740 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 740 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:55,974 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 312 Invalid, 752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 740 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:55,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1586 states. [2022-01-18 14:06:55,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1586 to 1464. [2022-01-18 14:06:55,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1464 states, 1463 states have (on average 2.9514695830485302) internal successors, (4318), 1463 states have internal predecessors, (4318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:55,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1464 states to 1464 states and 4318 transitions. [2022-01-18 14:06:55,988 INFO L78 Accepts]: Start accepts. Automaton has 1464 states and 4318 transitions. Word has length 26 [2022-01-18 14:06:55,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:55,989 INFO L470 AbstractCegarLoop]: Abstraction has 1464 states and 4318 transitions. [2022-01-18 14:06:55,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:55,989 INFO L276 IsEmpty]: Start isEmpty. Operand 1464 states and 4318 transitions. [2022-01-18 14:06:55,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:55,990 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:55,990 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:55,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2022-01-18 14:06:55,990 INFO L402 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:55,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:55,991 INFO L85 PathProgramCache]: Analyzing trace with hash 890933497, now seen corresponding path program 110 times [2022-01-18 14:06:55,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:55,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605617743] [2022-01-18 14:06:55,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:55,991 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:55,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:56,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:56,059 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:56,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605617743] [2022-01-18 14:06:56,060 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605617743] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:56,060 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:56,060 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:06:56,060 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317662786] [2022-01-18 14:06:56,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:56,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:06:56,060 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:56,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:06:56,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:56,060 INFO L87 Difference]: Start difference. First operand 1464 states and 4318 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:56,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:56,246 INFO L93 Difference]: Finished difference Result 1765 states and 5135 transitions. [2022-01-18 14:06:56,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:06:56,246 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:56,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:56,249 INFO L225 Difference]: With dead ends: 1765 [2022-01-18 14:06:56,249 INFO L226 Difference]: Without dead ends: 1626 [2022-01-18 14:06:56,249 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:56,249 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 57 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:56,249 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 234 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:56,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1626 states. [2022-01-18 14:06:56,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1626 to 1511. [2022-01-18 14:06:56,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1511 states, 1510 states have (on average 2.9377483443708607) internal successors, (4436), 1510 states have internal predecessors, (4436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:56,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1511 states to 1511 states and 4436 transitions. [2022-01-18 14:06:56,297 INFO L78 Accepts]: Start accepts. Automaton has 1511 states and 4436 transitions. Word has length 26 [2022-01-18 14:06:56,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:56,297 INFO L470 AbstractCegarLoop]: Abstraction has 1511 states and 4436 transitions. [2022-01-18 14:06:56,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:56,297 INFO L276 IsEmpty]: Start isEmpty. Operand 1511 states and 4436 transitions. [2022-01-18 14:06:56,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:56,299 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:56,299 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:56,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2022-01-18 14:06:56,299 INFO L402 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:56,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:56,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1225335621, now seen corresponding path program 111 times [2022-01-18 14:06:56,299 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:56,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365816737] [2022-01-18 14:06:56,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:56,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:56,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:56,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:56,361 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:56,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365816737] [2022-01-18 14:06:56,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365816737] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:56,362 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:56,362 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:56,362 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123811273] [2022-01-18 14:06:56,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:56,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:56,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:56,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:56,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:56,362 INFO L87 Difference]: Start difference. First operand 1511 states and 4436 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:56,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:56,590 INFO L93 Difference]: Finished difference Result 1727 states and 5019 transitions. [2022-01-18 14:06:56,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:56,591 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:56,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:56,593 INFO L225 Difference]: With dead ends: 1727 [2022-01-18 14:06:56,593 INFO L226 Difference]: Without dead ends: 1595 [2022-01-18 14:06:56,593 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:56,593 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 63 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 733 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:56,593 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 290 Invalid, 745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 733 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:56,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1595 states. [2022-01-18 14:06:56,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1595 to 1473. [2022-01-18 14:06:56,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1473 states, 1472 states have (on average 2.942934782608696) internal successors, (4332), 1472 states have internal predecessors, (4332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:56,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1473 states to 1473 states and 4332 transitions. [2022-01-18 14:06:56,608 INFO L78 Accepts]: Start accepts. Automaton has 1473 states and 4332 transitions. Word has length 26 [2022-01-18 14:06:56,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:56,608 INFO L470 AbstractCegarLoop]: Abstraction has 1473 states and 4332 transitions. [2022-01-18 14:06:56,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:56,608 INFO L276 IsEmpty]: Start isEmpty. Operand 1473 states and 4332 transitions. [2022-01-18 14:06:56,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:56,610 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:56,610 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:56,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2022-01-18 14:06:56,610 INFO L402 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:56,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:56,611 INFO L85 PathProgramCache]: Analyzing trace with hash 684125531, now seen corresponding path program 112 times [2022-01-18 14:06:56,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:56,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901797699] [2022-01-18 14:06:56,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:56,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:56,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:56,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:56,667 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:56,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901797699] [2022-01-18 14:06:56,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901797699] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:56,667 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:56,667 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:06:56,667 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263119512] [2022-01-18 14:06:56,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:56,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:06:56,667 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:56,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:06:56,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:56,667 INFO L87 Difference]: Start difference. First operand 1473 states and 4332 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:56,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:56,844 INFO L93 Difference]: Finished difference Result 1775 states and 5127 transitions. [2022-01-18 14:06:56,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:06:56,844 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:56,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:56,846 INFO L225 Difference]: With dead ends: 1775 [2022-01-18 14:06:56,846 INFO L226 Difference]: Without dead ends: 1647 [2022-01-18 14:06:56,847 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:56,847 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 54 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:56,847 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 232 Invalid, 576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:56,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1647 states. [2022-01-18 14:06:56,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1647 to 1525. [2022-01-18 14:06:56,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1525 states, 1524 states have (on average 2.927165354330709) internal successors, (4461), 1524 states have internal predecessors, (4461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:56,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1525 states to 1525 states and 4461 transitions. [2022-01-18 14:06:56,862 INFO L78 Accepts]: Start accepts. Automaton has 1525 states and 4461 transitions. Word has length 26 [2022-01-18 14:06:56,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:56,862 INFO L470 AbstractCegarLoop]: Abstraction has 1525 states and 4461 transitions. [2022-01-18 14:06:56,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:56,862 INFO L276 IsEmpty]: Start isEmpty. Operand 1525 states and 4461 transitions. [2022-01-18 14:06:56,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:56,863 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:56,863 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:56,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2022-01-18 14:06:56,864 INFO L402 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:56,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:56,864 INFO L85 PathProgramCache]: Analyzing trace with hash -745691017, now seen corresponding path program 113 times [2022-01-18 14:06:56,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:56,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529165270] [2022-01-18 14:06:56,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:56,864 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:56,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:56,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:56,933 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:56,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529165270] [2022-01-18 14:06:56,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529165270] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:56,934 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:56,934 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:56,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492019709] [2022-01-18 14:06:56,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:56,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:56,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:56,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:56,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:56,934 INFO L87 Difference]: Start difference. First operand 1525 states and 4461 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:57,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:57,149 INFO L93 Difference]: Finished difference Result 1738 states and 5008 transitions. [2022-01-18 14:06:57,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:57,150 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:57,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:57,152 INFO L225 Difference]: With dead ends: 1738 [2022-01-18 14:06:57,152 INFO L226 Difference]: Without dead ends: 1633 [2022-01-18 14:06:57,152 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:57,152 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 59 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:57,152 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 286 Invalid, 708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 698 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:57,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1633 states. [2022-01-18 14:06:57,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1633 to 1501. [2022-01-18 14:06:57,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1501 states, 1500 states have (on average 2.9326666666666665) internal successors, (4399), 1500 states have internal predecessors, (4399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:57,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1501 states to 1501 states and 4399 transitions. [2022-01-18 14:06:57,167 INFO L78 Accepts]: Start accepts. Automaton has 1501 states and 4399 transitions. Word has length 26 [2022-01-18 14:06:57,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:57,167 INFO L470 AbstractCegarLoop]: Abstraction has 1501 states and 4399 transitions. [2022-01-18 14:06:57,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:57,168 INFO L276 IsEmpty]: Start isEmpty. Operand 1501 states and 4399 transitions. [2022-01-18 14:06:57,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:57,169 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:57,169 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:57,169 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2022-01-18 14:06:57,169 INFO L402 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:57,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:57,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1457016233, now seen corresponding path program 114 times [2022-01-18 14:06:57,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:57,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352482499] [2022-01-18 14:06:57,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:57,170 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:57,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:57,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:57,238 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:57,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352482499] [2022-01-18 14:06:57,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352482499] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:57,238 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:57,238 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:57,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773978271] [2022-01-18 14:06:57,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:57,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:57,238 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:57,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:57,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:57,238 INFO L87 Difference]: Start difference. First operand 1501 states and 4399 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:57,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:57,463 INFO L93 Difference]: Finished difference Result 1652 states and 4785 transitions. [2022-01-18 14:06:57,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:57,463 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:57,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:57,465 INFO L225 Difference]: With dead ends: 1652 [2022-01-18 14:06:57,465 INFO L226 Difference]: Without dead ends: 1573 [2022-01-18 14:06:57,466 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:57,466 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 51 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 687 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:57,466 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 262 Invalid, 695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 687 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:57,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1573 states. [2022-01-18 14:06:57,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1573 to 1507. [2022-01-18 14:06:57,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1507 states, 1506 states have (on average 2.9276228419654715) internal successors, (4409), 1506 states have internal predecessors, (4409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:57,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 4409 transitions. [2022-01-18 14:06:57,480 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 4409 transitions. Word has length 26 [2022-01-18 14:06:57,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:57,480 INFO L470 AbstractCegarLoop]: Abstraction has 1507 states and 4409 transitions. [2022-01-18 14:06:57,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:57,481 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 4409 transitions. [2022-01-18 14:06:57,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:57,482 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:57,482 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:57,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2022-01-18 14:06:57,482 INFO L402 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:57,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:57,482 INFO L85 PathProgramCache]: Analyzing trace with hash 901650137, now seen corresponding path program 115 times [2022-01-18 14:06:57,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:57,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476671964] [2022-01-18 14:06:57,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:57,483 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:57,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:57,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:57,546 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:57,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476671964] [2022-01-18 14:06:57,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476671964] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:57,546 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:57,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:57,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788029680] [2022-01-18 14:06:57,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:57,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:57,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:57,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:57,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:57,546 INFO L87 Difference]: Start difference. First operand 1507 states and 4409 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:57,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:57,769 INFO L93 Difference]: Finished difference Result 1745 states and 5047 transitions. [2022-01-18 14:06:57,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:57,769 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:57,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:57,772 INFO L225 Difference]: With dead ends: 1745 [2022-01-18 14:06:57,772 INFO L226 Difference]: Without dead ends: 1641 [2022-01-18 14:06:57,772 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:57,772 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 56 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 724 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:57,772 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 267 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 724 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:57,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1641 states. [2022-01-18 14:06:57,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1641 to 1499. [2022-01-18 14:06:57,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1499 states, 1498 states have (on average 2.9332443257676903) internal successors, (4394), 1498 states have internal predecessors, (4394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:57,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1499 states to 1499 states and 4394 transitions. [2022-01-18 14:06:57,787 INFO L78 Accepts]: Start accepts. Automaton has 1499 states and 4394 transitions. Word has length 26 [2022-01-18 14:06:57,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:57,787 INFO L470 AbstractCegarLoop]: Abstraction has 1499 states and 4394 transitions. [2022-01-18 14:06:57,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:57,787 INFO L276 IsEmpty]: Start isEmpty. Operand 1499 states and 4394 transitions. [2022-01-18 14:06:57,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:57,789 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:57,789 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:57,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2022-01-18 14:06:57,789 INFO L402 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:57,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:57,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1269022521, now seen corresponding path program 116 times [2022-01-18 14:06:57,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:57,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618513246] [2022-01-18 14:06:57,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:57,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:57,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:57,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:57,859 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:57,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618513246] [2022-01-18 14:06:57,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618513246] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:57,859 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:57,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:57,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099150696] [2022-01-18 14:06:57,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:57,859 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:57,859 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:57,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:57,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:57,859 INFO L87 Difference]: Start difference. First operand 1499 states and 4394 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:58,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:58,071 INFO L93 Difference]: Finished difference Result 1652 states and 4784 transitions. [2022-01-18 14:06:58,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:58,071 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:58,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:58,074 INFO L225 Difference]: With dead ends: 1652 [2022-01-18 14:06:58,074 INFO L226 Difference]: Without dead ends: 1573 [2022-01-18 14:06:58,074 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:58,074 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 50 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 681 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:58,074 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 260 Invalid, 689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 681 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:58,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1573 states. [2022-01-18 14:06:58,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1573 to 1493. [2022-01-18 14:06:58,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1493 states, 1492 states have (on average 2.9383378016085793) internal successors, (4384), 1492 states have internal predecessors, (4384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:58,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1493 states to 1493 states and 4384 transitions. [2022-01-18 14:06:58,089 INFO L78 Accepts]: Start accepts. Automaton has 1493 states and 4384 transitions. Word has length 26 [2022-01-18 14:06:58,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:58,089 INFO L470 AbstractCegarLoop]: Abstraction has 1493 states and 4384 transitions. [2022-01-18 14:06:58,089 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:58,089 INFO L276 IsEmpty]: Start isEmpty. Operand 1493 states and 4384 transitions. [2022-01-18 14:06:58,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:58,090 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:58,091 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:58,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2022-01-18 14:06:58,091 INFO L402 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:58,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:58,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1046261569, now seen corresponding path program 117 times [2022-01-18 14:06:58,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:58,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996072922] [2022-01-18 14:06:58,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:58,091 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:58,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:58,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:58,167 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:58,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996072922] [2022-01-18 14:06:58,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996072922] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:58,167 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:58,167 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:58,167 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220816732] [2022-01-18 14:06:58,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:58,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:58,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:58,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:58,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:58,168 INFO L87 Difference]: Start difference. First operand 1493 states and 4384 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:58,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:58,401 INFO L93 Difference]: Finished difference Result 1700 states and 4918 transitions. [2022-01-18 14:06:58,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:58,402 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:58,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:58,404 INFO L225 Difference]: With dead ends: 1700 [2022-01-18 14:06:58,404 INFO L226 Difference]: Without dead ends: 1604 [2022-01-18 14:06:58,404 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:58,405 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 52 mSDsluCounter, 468 mSDsCounter, 0 mSdLazyCounter, 690 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:58,405 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 263 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 690 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:58,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2022-01-18 14:06:58,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 1481. [2022-01-18 14:06:58,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1481 states, 1480 states have (on average 2.9466216216216217) internal successors, (4361), 1480 states have internal predecessors, (4361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:58,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1481 states to 1481 states and 4361 transitions. [2022-01-18 14:06:58,419 INFO L78 Accepts]: Start accepts. Automaton has 1481 states and 4361 transitions. Word has length 26 [2022-01-18 14:06:58,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:58,420 INFO L470 AbstractCegarLoop]: Abstraction has 1481 states and 4361 transitions. [2022-01-18 14:06:58,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:58,420 INFO L276 IsEmpty]: Start isEmpty. Operand 1481 states and 4361 transitions. [2022-01-18 14:06:58,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:58,421 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:58,421 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:58,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2022-01-18 14:06:58,421 INFO L402 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:58,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:58,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1875949507, now seen corresponding path program 118 times [2022-01-18 14:06:58,422 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:58,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309736189] [2022-01-18 14:06:58,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:58,422 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:58,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:58,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:58,515 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:58,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309736189] [2022-01-18 14:06:58,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309736189] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:58,515 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:58,515 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:06:58,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823529237] [2022-01-18 14:06:58,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:58,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:06:58,516 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:58,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:06:58,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:58,516 INFO L87 Difference]: Start difference. First operand 1481 states and 4361 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:58,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:58,695 INFO L93 Difference]: Finished difference Result 1724 states and 4976 transitions. [2022-01-18 14:06:58,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:06:58,695 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:58,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:58,698 INFO L225 Difference]: With dead ends: 1724 [2022-01-18 14:06:58,698 INFO L226 Difference]: Without dead ends: 1560 [2022-01-18 14:06:58,698 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:06:58,698 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 55 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 571 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:58,698 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 233 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 571 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:58,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1560 states. [2022-01-18 14:06:58,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1560 to 1470. [2022-01-18 14:06:58,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1470 states, 1469 states have (on average 2.933287950987066) internal successors, (4309), 1469 states have internal predecessors, (4309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:58,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 4309 transitions. [2022-01-18 14:06:58,712 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 4309 transitions. Word has length 26 [2022-01-18 14:06:58,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:58,712 INFO L470 AbstractCegarLoop]: Abstraction has 1470 states and 4309 transitions. [2022-01-18 14:06:58,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:58,712 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 4309 transitions. [2022-01-18 14:06:58,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:58,714 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:58,714 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:58,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2022-01-18 14:06:58,714 INFO L402 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:58,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:58,714 INFO L85 PathProgramCache]: Analyzing trace with hash 989201241, now seen corresponding path program 119 times [2022-01-18 14:06:58,714 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:58,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733802880] [2022-01-18 14:06:58,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:58,714 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:58,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:58,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:58,779 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:58,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733802880] [2022-01-18 14:06:58,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733802880] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:58,779 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:58,780 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:58,780 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909946058] [2022-01-18 14:06:58,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:58,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:58,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:58,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:58,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:58,780 INFO L87 Difference]: Start difference. First operand 1470 states and 4309 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:59,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:59,000 INFO L93 Difference]: Finished difference Result 1671 states and 4816 transitions. [2022-01-18 14:06:59,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:59,000 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:59,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:59,003 INFO L225 Difference]: With dead ends: 1671 [2022-01-18 14:06:59,003 INFO L226 Difference]: Without dead ends: 1566 [2022-01-18 14:06:59,003 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:59,003 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 60 mSDsluCounter, 511 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:59,003 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 287 Invalid, 712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 700 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:59,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1566 states. [2022-01-18 14:06:59,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1566 to 1446. [2022-01-18 14:06:59,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1446 states, 1445 states have (on average 2.9363321799307958) internal successors, (4243), 1445 states have internal predecessors, (4243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:59,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1446 states to 1446 states and 4243 transitions. [2022-01-18 14:06:59,017 INFO L78 Accepts]: Start accepts. Automaton has 1446 states and 4243 transitions. Word has length 26 [2022-01-18 14:06:59,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:59,017 INFO L470 AbstractCegarLoop]: Abstraction has 1446 states and 4243 transitions. [2022-01-18 14:06:59,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:59,017 INFO L276 IsEmpty]: Start isEmpty. Operand 1446 states and 4243 transitions. [2022-01-18 14:06:59,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:59,019 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:59,019 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:59,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2022-01-18 14:06:59,019 INFO L402 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:59,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:59,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1106458743, now seen corresponding path program 120 times [2022-01-18 14:06:59,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:59,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753174160] [2022-01-18 14:06:59,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:59,020 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:59,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:59,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:59,090 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:59,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753174160] [2022-01-18 14:06:59,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753174160] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:59,090 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:59,090 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:59,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616639149] [2022-01-18 14:06:59,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:59,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:59,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:59,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:59,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:59,091 INFO L87 Difference]: Start difference. First operand 1446 states and 4243 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:59,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:59,306 INFO L93 Difference]: Finished difference Result 1597 states and 4640 transitions. [2022-01-18 14:06:59,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:59,306 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:59,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:59,308 INFO L225 Difference]: With dead ends: 1597 [2022-01-18 14:06:59,308 INFO L226 Difference]: Without dead ends: 1518 [2022-01-18 14:06:59,308 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:59,308 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 51 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 683 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:59,309 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 264 Invalid, 693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 683 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:59,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1518 states. [2022-01-18 14:06:59,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1518 to 1448. [2022-01-18 14:06:59,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1448 states, 1447 states have (on average 2.9371112646855564) internal successors, (4250), 1447 states have internal predecessors, (4250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:59,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 4250 transitions. [2022-01-18 14:06:59,322 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 4250 transitions. Word has length 26 [2022-01-18 14:06:59,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:59,323 INFO L470 AbstractCegarLoop]: Abstraction has 1448 states and 4250 transitions. [2022-01-18 14:06:59,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:59,323 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 4250 transitions. [2022-01-18 14:06:59,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:59,324 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:59,324 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:59,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2022-01-18 14:06:59,324 INFO L402 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:59,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:59,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1442566335, now seen corresponding path program 121 times [2022-01-18 14:06:59,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:59,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876043610] [2022-01-18 14:06:59,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:59,325 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:59,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:59,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:59,398 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:59,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876043610] [2022-01-18 14:06:59,398 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876043610] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:59,398 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:59,398 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:59,398 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511672568] [2022-01-18 14:06:59,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:59,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:59,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:59,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:59,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:59,399 INFO L87 Difference]: Start difference. First operand 1448 states and 4250 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:59,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:59,617 INFO L93 Difference]: Finished difference Result 1668 states and 4799 transitions. [2022-01-18 14:06:59,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:59,617 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:59,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:59,620 INFO L225 Difference]: With dead ends: 1668 [2022-01-18 14:06:59,620 INFO L226 Difference]: Without dead ends: 1579 [2022-01-18 14:06:59,620 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:59,620 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 54 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:59,620 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 266 Invalid, 710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 698 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:59,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1579 states. [2022-01-18 14:06:59,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1579 to 1445. [2022-01-18 14:06:59,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1445 states, 1444 states have (on average 2.9335180055401664) internal successors, (4236), 1444 states have internal predecessors, (4236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:59,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 4236 transitions. [2022-01-18 14:06:59,634 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 4236 transitions. Word has length 26 [2022-01-18 14:06:59,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:59,634 INFO L470 AbstractCegarLoop]: Abstraction has 1445 states and 4236 transitions. [2022-01-18 14:06:59,634 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:59,634 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 4236 transitions. [2022-01-18 14:06:59,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:59,636 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:59,636 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:59,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2022-01-18 14:06:59,636 INFO L402 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:59,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:59,636 INFO L85 PathProgramCache]: Analyzing trace with hash -462469799, now seen corresponding path program 122 times [2022-01-18 14:06:59,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:59,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107157511] [2022-01-18 14:06:59,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:59,636 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:59,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:59,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:59,698 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:59,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107157511] [2022-01-18 14:06:59,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107157511] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:59,699 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:59,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:59,699 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884384226] [2022-01-18 14:06:59,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:59,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:59,699 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:59,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:59,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:59,699 INFO L87 Difference]: Start difference. First operand 1445 states and 4236 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:59,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:06:59,907 INFO L93 Difference]: Finished difference Result 1656 states and 4808 transitions. [2022-01-18 14:06:59,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:06:59,907 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:06:59,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:06:59,910 INFO L225 Difference]: With dead ends: 1656 [2022-01-18 14:06:59,910 INFO L226 Difference]: Without dead ends: 1553 [2022-01-18 14:06:59,910 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:59,910 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 52 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 667 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:06:59,910 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 257 Invalid, 679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 667 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:06:59,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1553 states. [2022-01-18 14:06:59,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1553 to 1387. [2022-01-18 14:06:59,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1387 states, 1386 states have (on average 2.9552669552669553) internal successors, (4096), 1386 states have internal predecessors, (4096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:59,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1387 states to 1387 states and 4096 transitions. [2022-01-18 14:06:59,924 INFO L78 Accepts]: Start accepts. Automaton has 1387 states and 4096 transitions. Word has length 26 [2022-01-18 14:06:59,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:06:59,924 INFO L470 AbstractCegarLoop]: Abstraction has 1387 states and 4096 transitions. [2022-01-18 14:06:59,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:06:59,924 INFO L276 IsEmpty]: Start isEmpty. Operand 1387 states and 4096 transitions. [2022-01-18 14:06:59,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:06:59,925 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:06:59,925 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:06:59,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2022-01-18 14:06:59,926 INFO L402 AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:06:59,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:06:59,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1616183895, now seen corresponding path program 123 times [2022-01-18 14:06:59,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:06:59,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247264420] [2022-01-18 14:06:59,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:06:59,926 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:06:59,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:06:59,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:06:59,994 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:06:59,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247264420] [2022-01-18 14:06:59,994 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247264420] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:06:59,994 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:06:59,994 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:06:59,994 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561907843] [2022-01-18 14:06:59,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:06:59,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:06:59,995 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:06:59,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:06:59,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:06:59,995 INFO L87 Difference]: Start difference. First operand 1387 states and 4096 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:00,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:00,201 INFO L93 Difference]: Finished difference Result 1532 states and 4467 transitions. [2022-01-18 14:07:00,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:00,201 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:00,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:00,204 INFO L225 Difference]: With dead ends: 1532 [2022-01-18 14:07:00,204 INFO L226 Difference]: Without dead ends: 1453 [2022-01-18 14:07:00,204 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:00,204 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 45 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:00,204 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 228 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 664 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:00,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1453 states. [2022-01-18 14:07:00,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1453 to 1388. [2022-01-18 14:07:00,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1388 states, 1387 states have (on average 2.9560201874549388) internal successors, (4100), 1387 states have internal predecessors, (4100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:00,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 4100 transitions. [2022-01-18 14:07:00,217 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 4100 transitions. Word has length 26 [2022-01-18 14:07:00,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:00,217 INFO L470 AbstractCegarLoop]: Abstraction has 1388 states and 4100 transitions. [2022-01-18 14:07:00,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:00,218 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 4100 transitions. [2022-01-18 14:07:00,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:00,219 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:00,219 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:00,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2022-01-18 14:07:00,219 INFO L402 AbstractCegarLoop]: === Iteration 126 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:00,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:00,219 INFO L85 PathProgramCache]: Analyzing trace with hash -320117031, now seen corresponding path program 124 times [2022-01-18 14:07:00,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:00,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363019215] [2022-01-18 14:07:00,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:00,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:00,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:00,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:00,290 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:00,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363019215] [2022-01-18 14:07:00,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363019215] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:00,291 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:00,291 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:00,291 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548709959] [2022-01-18 14:07:00,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:00,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:00,291 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:00,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:00,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:00,291 INFO L87 Difference]: Start difference. First operand 1388 states and 4100 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:00,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:00,512 INFO L93 Difference]: Finished difference Result 1568 states and 4567 transitions. [2022-01-18 14:07:00,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:00,513 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:00,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:00,515 INFO L225 Difference]: With dead ends: 1568 [2022-01-18 14:07:00,515 INFO L226 Difference]: Without dead ends: 1464 [2022-01-18 14:07:00,515 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:00,515 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 50 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:00,515 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 231 Invalid, 724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 714 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:00,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1464 states. [2022-01-18 14:07:00,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1464 to 1391. [2022-01-18 14:07:00,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1391 states, 1390 states have (on average 2.956115107913669) internal successors, (4109), 1390 states have internal predecessors, (4109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:00,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1391 states to 1391 states and 4109 transitions. [2022-01-18 14:07:00,529 INFO L78 Accepts]: Start accepts. Automaton has 1391 states and 4109 transitions. Word has length 26 [2022-01-18 14:07:00,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:00,529 INFO L470 AbstractCegarLoop]: Abstraction has 1391 states and 4109 transitions. [2022-01-18 14:07:00,529 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:00,529 INFO L276 IsEmpty]: Start isEmpty. Operand 1391 states and 4109 transitions. [2022-01-18 14:07:00,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:00,531 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:00,531 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:00,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2022-01-18 14:07:00,531 INFO L402 AbstractCegarLoop]: === Iteration 127 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:00,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:00,531 INFO L85 PathProgramCache]: Analyzing trace with hash 47255353, now seen corresponding path program 125 times [2022-01-18 14:07:00,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:00,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428614268] [2022-01-18 14:07:00,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:00,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:00,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:00,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:00,597 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:00,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428614268] [2022-01-18 14:07:00,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428614268] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:00,598 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:00,598 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:00,598 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103021231] [2022-01-18 14:07:00,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:00,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:00,598 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:00,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:00,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:00,598 INFO L87 Difference]: Start difference. First operand 1391 states and 4109 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:00,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:00,803 INFO L93 Difference]: Finished difference Result 1536 states and 4479 transitions. [2022-01-18 14:07:00,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:00,803 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:00,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:00,805 INFO L225 Difference]: With dead ends: 1536 [2022-01-18 14:07:00,805 INFO L226 Difference]: Without dead ends: 1457 [2022-01-18 14:07:00,805 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:00,806 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 44 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 658 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:00,806 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 226 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 658 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:00,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1457 states. [2022-01-18 14:07:00,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1457 to 1392. [2022-01-18 14:07:00,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1392 states, 1391 states have (on average 2.9568655643421997) internal successors, (4113), 1391 states have internal predecessors, (4113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:00,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 4113 transitions. [2022-01-18 14:07:00,819 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 4113 transitions. Word has length 26 [2022-01-18 14:07:00,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:00,820 INFO L470 AbstractCegarLoop]: Abstraction has 1392 states and 4113 transitions. [2022-01-18 14:07:00,820 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:00,820 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 4113 transitions. [2022-01-18 14:07:00,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:00,821 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:00,821 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:00,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2022-01-18 14:07:00,821 INFO L402 AbstractCegarLoop]: === Iteration 128 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:00,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:00,822 INFO L85 PathProgramCache]: Analyzing trace with hash 2026938559, now seen corresponding path program 126 times [2022-01-18 14:07:00,822 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:00,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539458212] [2022-01-18 14:07:00,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:00,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:00,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:00,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:00,887 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:00,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539458212] [2022-01-18 14:07:00,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539458212] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:00,887 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:00,887 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:00,887 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44586287] [2022-01-18 14:07:00,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:00,888 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:00,888 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:00,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:00,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:00,889 INFO L87 Difference]: Start difference. First operand 1392 states and 4113 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:01,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:01,098 INFO L93 Difference]: Finished difference Result 1543 states and 4492 transitions. [2022-01-18 14:07:01,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:01,098 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:01,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:01,101 INFO L225 Difference]: With dead ends: 1543 [2022-01-18 14:07:01,101 INFO L226 Difference]: Without dead ends: 1460 [2022-01-18 14:07:01,101 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:01,101 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 46 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 671 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:01,101 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 227 Invalid, 679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 671 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:01,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1460 states. [2022-01-18 14:07:01,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1460 to 1393. [2022-01-18 14:07:01,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1393 states, 1392 states have (on average 2.9561781609195403) internal successors, (4115), 1392 states have internal predecessors, (4115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:01,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1393 states to 1393 states and 4115 transitions. [2022-01-18 14:07:01,115 INFO L78 Accepts]: Start accepts. Automaton has 1393 states and 4115 transitions. Word has length 26 [2022-01-18 14:07:01,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:01,115 INFO L470 AbstractCegarLoop]: Abstraction has 1393 states and 4115 transitions. [2022-01-18 14:07:01,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:01,115 INFO L276 IsEmpty]: Start isEmpty. Operand 1393 states and 4115 transitions. [2022-01-18 14:07:01,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:01,116 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:01,116 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:01,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2022-01-18 14:07:01,117 INFO L402 AbstractCegarLoop]: === Iteration 129 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:01,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:01,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1622607935, now seen corresponding path program 127 times [2022-01-18 14:07:01,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:01,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098508251] [2022-01-18 14:07:01,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:01,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:01,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:01,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:01,179 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:01,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098508251] [2022-01-18 14:07:01,179 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098508251] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:01,179 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:01,179 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:01,179 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297832515] [2022-01-18 14:07:01,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:01,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:01,179 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:01,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:01,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:01,180 INFO L87 Difference]: Start difference. First operand 1393 states and 4115 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:01,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:01,400 INFO L93 Difference]: Finished difference Result 1572 states and 4601 transitions. [2022-01-18 14:07:01,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:01,400 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:01,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:01,402 INFO L225 Difference]: With dead ends: 1572 [2022-01-18 14:07:01,402 INFO L226 Difference]: Without dead ends: 1475 [2022-01-18 14:07:01,402 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:01,403 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 50 mSDsluCounter, 473 mSDsCounter, 0 mSdLazyCounter, 710 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:01,403 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 233 Invalid, 722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 710 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:01,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1475 states. [2022-01-18 14:07:01,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1475 to 1390. [2022-01-18 14:07:01,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1390 states, 1389 states have (on average 2.9546436285097193) internal successors, (4104), 1389 states have internal predecessors, (4104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:01,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1390 states to 1390 states and 4104 transitions. [2022-01-18 14:07:01,416 INFO L78 Accepts]: Start accepts. Automaton has 1390 states and 4104 transitions. Word has length 26 [2022-01-18 14:07:01,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:01,416 INFO L470 AbstractCegarLoop]: Abstraction has 1390 states and 4104 transitions. [2022-01-18 14:07:01,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:01,417 INFO L276 IsEmpty]: Start isEmpty. Operand 1390 states and 4104 transitions. [2022-01-18 14:07:01,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:01,418 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:01,418 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:01,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2022-01-18 14:07:01,418 INFO L402 AbstractCegarLoop]: === Iteration 130 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:01,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:01,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1534671201, now seen corresponding path program 128 times [2022-01-18 14:07:01,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:01,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060015042] [2022-01-18 14:07:01,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:01,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:01,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:01,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:01,488 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:01,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060015042] [2022-01-18 14:07:01,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060015042] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:01,488 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:01,488 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:01,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792468822] [2022-01-18 14:07:01,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:01,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:01,489 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:01,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:01,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:01,489 INFO L87 Difference]: Start difference. First operand 1390 states and 4104 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:01,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:01,698 INFO L93 Difference]: Finished difference Result 1586 states and 4616 transitions. [2022-01-18 14:07:01,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:01,698 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:01,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:01,701 INFO L225 Difference]: With dead ends: 1586 [2022-01-18 14:07:01,701 INFO L226 Difference]: Without dead ends: 1498 [2022-01-18 14:07:01,701 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:01,701 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 47 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 673 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:01,701 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 231 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 673 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:01,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1498 states. [2022-01-18 14:07:01,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1498 to 1391. [2022-01-18 14:07:01,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1391 states, 1390 states have (on average 2.9532374100719423) internal successors, (4105), 1390 states have internal predecessors, (4105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:01,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1391 states to 1391 states and 4105 transitions. [2022-01-18 14:07:01,715 INFO L78 Accepts]: Start accepts. Automaton has 1391 states and 4105 transitions. Word has length 26 [2022-01-18 14:07:01,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:01,715 INFO L470 AbstractCegarLoop]: Abstraction has 1391 states and 4105 transitions. [2022-01-18 14:07:01,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:01,716 INFO L276 IsEmpty]: Start isEmpty. Operand 1391 states and 4105 transitions. [2022-01-18 14:07:01,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:01,717 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:01,717 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:01,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2022-01-18 14:07:01,717 INFO L402 AbstractCegarLoop]: === Iteration 131 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:01,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:01,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1409375929, now seen corresponding path program 129 times [2022-01-18 14:07:01,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:01,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726613882] [2022-01-18 14:07:01,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:01,718 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:01,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:01,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:01,786 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:01,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726613882] [2022-01-18 14:07:01,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726613882] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:01,786 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:01,786 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:01,786 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843384884] [2022-01-18 14:07:01,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:01,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:01,786 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:01,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:01,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:01,787 INFO L87 Difference]: Start difference. First operand 1391 states and 4105 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:01,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:01,998 INFO L93 Difference]: Finished difference Result 1597 states and 4669 transitions. [2022-01-18 14:07:01,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:01,999 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:01,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:02,001 INFO L225 Difference]: With dead ends: 1597 [2022-01-18 14:07:02,001 INFO L226 Difference]: Without dead ends: 1518 [2022-01-18 14:07:02,001 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:02,001 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 46 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 675 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:02,001 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 232 Invalid, 685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 675 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:02,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1518 states. [2022-01-18 14:07:02,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1518 to 1397. [2022-01-18 14:07:02,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1397 states, 1396 states have (on average 2.9548710601719197) internal successors, (4125), 1396 states have internal predecessors, (4125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:02,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1397 states to 1397 states and 4125 transitions. [2022-01-18 14:07:02,016 INFO L78 Accepts]: Start accepts. Automaton has 1397 states and 4125 transitions. Word has length 26 [2022-01-18 14:07:02,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:02,016 INFO L470 AbstractCegarLoop]: Abstraction has 1397 states and 4125 transitions. [2022-01-18 14:07:02,016 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:02,016 INFO L276 IsEmpty]: Start isEmpty. Operand 1397 states and 4125 transitions. [2022-01-18 14:07:02,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:02,017 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:02,017 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:02,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2022-01-18 14:07:02,017 INFO L402 AbstractCegarLoop]: === Iteration 132 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:02,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:02,018 INFO L85 PathProgramCache]: Analyzing trace with hash -526924997, now seen corresponding path program 130 times [2022-01-18 14:07:02,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:02,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536280441] [2022-01-18 14:07:02,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:02,018 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:02,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:02,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:02,079 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:02,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536280441] [2022-01-18 14:07:02,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536280441] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:02,079 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:02,079 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:02,079 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638158592] [2022-01-18 14:07:02,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:02,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:02,080 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:02,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:02,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:02,080 INFO L87 Difference]: Start difference. First operand 1397 states and 4125 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:02,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:02,302 INFO L93 Difference]: Finished difference Result 1624 states and 4728 transitions. [2022-01-18 14:07:02,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:02,303 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:02,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:02,305 INFO L225 Difference]: With dead ends: 1624 [2022-01-18 14:07:02,305 INFO L226 Difference]: Without dead ends: 1520 [2022-01-18 14:07:02,305 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:02,305 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 51 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 716 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:02,305 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 235 Invalid, 728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 716 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:02,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1520 states. [2022-01-18 14:07:02,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1520 to 1388. [2022-01-18 14:07:02,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1388 states, 1387 states have (on average 2.9495313626532083) internal successors, (4091), 1387 states have internal predecessors, (4091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:02,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 4091 transitions. [2022-01-18 14:07:02,325 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 4091 transitions. Word has length 26 [2022-01-18 14:07:02,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:02,325 INFO L470 AbstractCegarLoop]: Abstraction has 1388 states and 4091 transitions. [2022-01-18 14:07:02,325 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:02,325 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 4091 transitions. [2022-01-18 14:07:02,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:02,327 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:02,327 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:02,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2022-01-18 14:07:02,327 INFO L402 AbstractCegarLoop]: === Iteration 133 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:02,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:02,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1184088519, now seen corresponding path program 131 times [2022-01-18 14:07:02,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:02,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474106000] [2022-01-18 14:07:02,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:02,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:02,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:02,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:02,387 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:02,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474106000] [2022-01-18 14:07:02,387 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474106000] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:02,387 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:02,387 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:02,387 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173400091] [2022-01-18 14:07:02,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:02,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:02,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:02,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:02,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:02,388 INFO L87 Difference]: Start difference. First operand 1388 states and 4091 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:02,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:02,589 INFO L93 Difference]: Finished difference Result 1580 states and 4623 transitions. [2022-01-18 14:07:02,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:02,589 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:02,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:02,591 INFO L225 Difference]: With dead ends: 1580 [2022-01-18 14:07:02,591 INFO L226 Difference]: Without dead ends: 1492 [2022-01-18 14:07:02,591 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:02,591 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 46 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 653 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:02,592 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 223 Invalid, 665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 653 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:02,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1492 states. [2022-01-18 14:07:02,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1492 to 1389. [2022-01-18 14:07:02,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1389 states, 1388 states have (on average 2.951008645533141) internal successors, (4096), 1388 states have internal predecessors, (4096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:02,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1389 states to 1389 states and 4096 transitions. [2022-01-18 14:07:02,605 INFO L78 Accepts]: Start accepts. Automaton has 1389 states and 4096 transitions. Word has length 26 [2022-01-18 14:07:02,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:02,605 INFO L470 AbstractCegarLoop]: Abstraction has 1389 states and 4096 transitions. [2022-01-18 14:07:02,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:02,606 INFO L276 IsEmpty]: Start isEmpty. Operand 1389 states and 4096 transitions. [2022-01-18 14:07:02,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:02,607 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:02,607 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:02,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2022-01-18 14:07:02,607 INFO L402 AbstractCegarLoop]: === Iteration 134 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:02,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:02,607 INFO L85 PathProgramCache]: Analyzing trace with hash 1559673499, now seen corresponding path program 132 times [2022-01-18 14:07:02,607 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:02,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745595405] [2022-01-18 14:07:02,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:02,608 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:02,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:02,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:02,667 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:02,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745595405] [2022-01-18 14:07:02,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745595405] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:02,667 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:02,667 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:02,667 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492549437] [2022-01-18 14:07:02,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:02,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:02,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:02,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:02,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:02,668 INFO L87 Difference]: Start difference. First operand 1389 states and 4096 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:02,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:02,872 INFO L93 Difference]: Finished difference Result 1516 states and 4425 transitions. [2022-01-18 14:07:02,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:02,873 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:02,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:02,875 INFO L225 Difference]: With dead ends: 1516 [2022-01-18 14:07:02,875 INFO L226 Difference]: Without dead ends: 1437 [2022-01-18 14:07:02,875 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:02,875 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 45 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:02,875 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 228 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 664 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:02,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1437 states. [2022-01-18 14:07:02,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1437 to 1388. [2022-01-18 14:07:02,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1388 states, 1387 states have (on average 2.950252343186734) internal successors, (4092), 1387 states have internal predecessors, (4092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:02,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 4092 transitions. [2022-01-18 14:07:02,889 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 4092 transitions. Word has length 26 [2022-01-18 14:07:02,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:02,889 INFO L470 AbstractCegarLoop]: Abstraction has 1388 states and 4092 transitions. [2022-01-18 14:07:02,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:02,889 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 4092 transitions. [2022-01-18 14:07:02,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:02,890 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:02,890 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:02,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2022-01-18 14:07:02,890 INFO L402 AbstractCegarLoop]: === Iteration 135 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:02,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:02,891 INFO L85 PathProgramCache]: Analyzing trace with hash -755610591, now seen corresponding path program 133 times [2022-01-18 14:07:02,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:02,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255571581] [2022-01-18 14:07:02,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:02,891 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:02,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:02,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:02,952 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:02,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255571581] [2022-01-18 14:07:02,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255571581] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:02,952 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:02,952 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:02,952 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860657884] [2022-01-18 14:07:02,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:02,953 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:02,953 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:02,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:02,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:02,953 INFO L87 Difference]: Start difference. First operand 1388 states and 4092 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:03,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:03,160 INFO L93 Difference]: Finished difference Result 1536 states and 4461 transitions. [2022-01-18 14:07:03,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:03,160 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:03,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:03,162 INFO L225 Difference]: With dead ends: 1536 [2022-01-18 14:07:03,162 INFO L226 Difference]: Without dead ends: 1453 [2022-01-18 14:07:03,162 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:03,162 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 47 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 677 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:03,162 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 229 Invalid, 685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 677 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:03,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1453 states. [2022-01-18 14:07:03,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1453 to 1386. [2022-01-18 14:07:03,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1386 states, 1385 states have (on average 2.949458483754513) internal successors, (4085), 1385 states have internal predecessors, (4085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:03,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1386 states to 1386 states and 4085 transitions. [2022-01-18 14:07:03,176 INFO L78 Accepts]: Start accepts. Automaton has 1386 states and 4085 transitions. Word has length 26 [2022-01-18 14:07:03,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:03,176 INFO L470 AbstractCegarLoop]: Abstraction has 1386 states and 4085 transitions. [2022-01-18 14:07:03,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:03,176 INFO L276 IsEmpty]: Start isEmpty. Operand 1386 states and 4085 transitions. [2022-01-18 14:07:03,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:03,177 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:03,178 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:03,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2022-01-18 14:07:03,178 INFO L402 AbstractCegarLoop]: === Iteration 136 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:03,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:03,178 INFO L85 PathProgramCache]: Analyzing trace with hash 167528953, now seen corresponding path program 134 times [2022-01-18 14:07:03,178 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:03,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365912341] [2022-01-18 14:07:03,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:03,178 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:03,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:03,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:03,247 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:03,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365912341] [2022-01-18 14:07:03,247 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365912341] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:03,248 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:03,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:03,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469427446] [2022-01-18 14:07:03,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:03,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:03,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:03,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:03,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:03,248 INFO L87 Difference]: Start difference. First operand 1386 states and 4085 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:03,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:03,451 INFO L93 Difference]: Finished difference Result 1582 states and 4605 transitions. [2022-01-18 14:07:03,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:03,451 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:03,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:03,454 INFO L225 Difference]: With dead ends: 1582 [2022-01-18 14:07:03,454 INFO L226 Difference]: Without dead ends: 1497 [2022-01-18 14:07:03,454 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:03,454 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 46 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:03,454 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 221 Invalid, 667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 657 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:03,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1497 states. [2022-01-18 14:07:03,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1497 to 1383. [2022-01-18 14:07:03,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1383 states, 1382 states have (on average 2.946454413892909) internal successors, (4072), 1382 states have internal predecessors, (4072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:03,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1383 states to 1383 states and 4072 transitions. [2022-01-18 14:07:03,468 INFO L78 Accepts]: Start accepts. Automaton has 1383 states and 4072 transitions. Word has length 26 [2022-01-18 14:07:03,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:03,468 INFO L470 AbstractCegarLoop]: Abstraction has 1383 states and 4072 transitions. [2022-01-18 14:07:03,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:03,468 INFO L276 IsEmpty]: Start isEmpty. Operand 1383 states and 4072 transitions. [2022-01-18 14:07:03,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:03,469 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:03,469 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:03,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2022-01-18 14:07:03,469 INFO L402 AbstractCegarLoop]: === Iteration 137 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:03,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:03,470 INFO L85 PathProgramCache]: Analyzing trace with hash -2004677727, now seen corresponding path program 135 times [2022-01-18 14:07:03,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:03,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5894501] [2022-01-18 14:07:03,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:03,470 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:03,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:03,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:03,533 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:03,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5894501] [2022-01-18 14:07:03,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5894501] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:03,533 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:03,533 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:03,533 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996706223] [2022-01-18 14:07:03,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:03,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:03,533 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:03,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:03,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:03,533 INFO L87 Difference]: Start difference. First operand 1383 states and 4072 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:03,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:03,743 INFO L93 Difference]: Finished difference Result 1557 states and 4506 transitions. [2022-01-18 14:07:03,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:03,744 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:03,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:03,746 INFO L225 Difference]: With dead ends: 1557 [2022-01-18 14:07:03,746 INFO L226 Difference]: Without dead ends: 1464 [2022-01-18 14:07:03,746 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:03,746 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 49 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 682 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:03,746 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 234 Invalid, 693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 682 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:03,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1464 states. [2022-01-18 14:07:03,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1464 to 1372. [2022-01-18 14:07:03,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1372 states, 1371 states have (on average 2.9540481400437635) internal successors, (4050), 1371 states have internal predecessors, (4050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:03,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1372 states to 1372 states and 4050 transitions. [2022-01-18 14:07:03,760 INFO L78 Accepts]: Start accepts. Automaton has 1372 states and 4050 transitions. Word has length 26 [2022-01-18 14:07:03,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:03,760 INFO L470 AbstractCegarLoop]: Abstraction has 1372 states and 4050 transitions. [2022-01-18 14:07:03,760 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:03,760 INFO L276 IsEmpty]: Start isEmpty. Operand 1372 states and 4050 transitions. [2022-01-18 14:07:03,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:03,761 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:03,761 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:03,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2022-01-18 14:07:03,761 INFO L402 AbstractCegarLoop]: === Iteration 138 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:03,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:03,762 INFO L85 PathProgramCache]: Analyzing trace with hash -52542947, now seen corresponding path program 136 times [2022-01-18 14:07:03,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:03,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961254712] [2022-01-18 14:07:03,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:03,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:03,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:03,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:03,807 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:03,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961254712] [2022-01-18 14:07:03,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961254712] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:03,808 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:03,808 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 14:07:03,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562499822] [2022-01-18 14:07:03,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:03,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 14:07:03,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:03,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 14:07:03,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-18 14:07:03,808 INFO L87 Difference]: Start difference. First operand 1372 states and 4050 transitions. Second operand has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:03,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:03,940 INFO L93 Difference]: Finished difference Result 1654 states and 4846 transitions. [2022-01-18 14:07:03,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 14:07:03,940 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:03,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:03,942 INFO L225 Difference]: With dead ends: 1654 [2022-01-18 14:07:03,942 INFO L226 Difference]: Without dead ends: 1575 [2022-01-18 14:07:03,942 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-18 14:07:03,943 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 45 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:03,943 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 183 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 14:07:03,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1575 states. [2022-01-18 14:07:03,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1575 to 1438. [2022-01-18 14:07:03,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1438 states, 1437 states have (on average 2.955462769659012) internal successors, (4247), 1437 states have internal predecessors, (4247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:03,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1438 states to 1438 states and 4247 transitions. [2022-01-18 14:07:03,957 INFO L78 Accepts]: Start accepts. Automaton has 1438 states and 4247 transitions. Word has length 26 [2022-01-18 14:07:03,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:03,957 INFO L470 AbstractCegarLoop]: Abstraction has 1438 states and 4247 transitions. [2022-01-18 14:07:03,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:03,958 INFO L276 IsEmpty]: Start isEmpty. Operand 1438 states and 4247 transitions. [2022-01-18 14:07:03,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:03,959 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:03,959 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:03,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2022-01-18 14:07:03,959 INFO L402 AbstractCegarLoop]: === Iteration 139 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:03,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:03,959 INFO L85 PathProgramCache]: Analyzing trace with hash 283564645, now seen corresponding path program 137 times [2022-01-18 14:07:03,960 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:03,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007136518] [2022-01-18 14:07:03,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:03,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:03,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:04,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:04,010 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:04,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007136518] [2022-01-18 14:07:04,010 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007136518] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:04,010 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:04,011 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:07:04,011 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254503821] [2022-01-18 14:07:04,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:04,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:07:04,011 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:04,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:07:04,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:04,011 INFO L87 Difference]: Start difference. First operand 1438 states and 4247 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:04,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:04,176 INFO L93 Difference]: Finished difference Result 1749 states and 5118 transitions. [2022-01-18 14:07:04,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:07:04,176 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:04,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:04,178 INFO L225 Difference]: With dead ends: 1749 [2022-01-18 14:07:04,178 INFO L226 Difference]: Without dead ends: 1598 [2022-01-18 14:07:04,178 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:04,178 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 56 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:04,178 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 238 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:04,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1598 states. [2022-01-18 14:07:04,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1598 to 1426. [2022-01-18 14:07:04,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1426 states, 1425 states have (on average 2.953684210526316) internal successors, (4209), 1425 states have internal predecessors, (4209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:04,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 4209 transitions. [2022-01-18 14:07:04,199 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 4209 transitions. Word has length 26 [2022-01-18 14:07:04,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:04,199 INFO L470 AbstractCegarLoop]: Abstraction has 1426 states and 4209 transitions. [2022-01-18 14:07:04,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:04,199 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 4209 transitions. [2022-01-18 14:07:04,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:04,201 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:04,201 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:04,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2022-01-18 14:07:04,201 INFO L402 AbstractCegarLoop]: === Iteration 140 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:04,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:04,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1770283717, now seen corresponding path program 138 times [2022-01-18 14:07:04,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:04,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442838673] [2022-01-18 14:07:04,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:04,201 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:04,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:04,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:04,251 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:04,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442838673] [2022-01-18 14:07:04,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442838673] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:04,251 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:04,251 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:07:04,251 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940698908] [2022-01-18 14:07:04,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:04,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:07:04,252 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:04,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:07:04,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:04,252 INFO L87 Difference]: Start difference. First operand 1426 states and 4209 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:04,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:04,413 INFO L93 Difference]: Finished difference Result 1711 states and 4999 transitions. [2022-01-18 14:07:04,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:07:04,414 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:04,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:04,416 INFO L225 Difference]: With dead ends: 1711 [2022-01-18 14:07:04,416 INFO L226 Difference]: Without dead ends: 1632 [2022-01-18 14:07:04,416 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:04,416 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 48 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:04,416 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 219 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 515 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:04,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1632 states. [2022-01-18 14:07:04,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1632 to 1428. [2022-01-18 14:07:04,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1427 states have (on average 2.9530483531885072) internal successors, (4214), 1427 states have internal predecessors, (4214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:04,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 4214 transitions. [2022-01-18 14:07:04,430 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 4214 transitions. Word has length 26 [2022-01-18 14:07:04,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:04,430 INFO L470 AbstractCegarLoop]: Abstraction has 1428 states and 4214 transitions. [2022-01-18 14:07:04,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:04,431 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 4214 transitions. [2022-01-18 14:07:04,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:04,432 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:04,432 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:04,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2022-01-18 14:07:04,432 INFO L402 AbstractCegarLoop]: === Iteration 141 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:04,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:04,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1434176125, now seen corresponding path program 139 times [2022-01-18 14:07:04,433 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:04,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713386724] [2022-01-18 14:07:04,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:04,433 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:04,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:04,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:04,486 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:04,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713386724] [2022-01-18 14:07:04,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713386724] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:04,486 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:04,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:07:04,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505003924] [2022-01-18 14:07:04,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:04,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:07:04,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:04,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:07:04,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:04,487 INFO L87 Difference]: Start difference. First operand 1428 states and 4214 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:04,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:04,660 INFO L93 Difference]: Finished difference Result 1743 states and 5115 transitions. [2022-01-18 14:07:04,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:07:04,661 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:04,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:04,663 INFO L225 Difference]: With dead ends: 1743 [2022-01-18 14:07:04,663 INFO L226 Difference]: Without dead ends: 1660 [2022-01-18 14:07:04,663 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:04,663 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 50 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 563 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:04,663 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 225 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 563 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:04,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1660 states. [2022-01-18 14:07:04,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1660 to 1428. [2022-01-18 14:07:04,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1427 states have (on average 2.9516468114926417) internal successors, (4212), 1427 states have internal predecessors, (4212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:04,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 4212 transitions. [2022-01-18 14:07:04,678 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 4212 transitions. Word has length 26 [2022-01-18 14:07:04,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:04,678 INFO L470 AbstractCegarLoop]: Abstraction has 1428 states and 4212 transitions. [2022-01-18 14:07:04,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:04,678 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 4212 transitions. [2022-01-18 14:07:04,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:04,679 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:04,679 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:04,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2022-01-18 14:07:04,679 INFO L402 AbstractCegarLoop]: === Iteration 142 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:04,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:04,680 INFO L85 PathProgramCache]: Analyzing trace with hash 1375887461, now seen corresponding path program 140 times [2022-01-18 14:07:04,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:04,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201483192] [2022-01-18 14:07:04,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:04,680 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:04,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:04,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:04,731 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:04,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201483192] [2022-01-18 14:07:04,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201483192] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:04,731 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:04,731 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:07:04,731 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518269148] [2022-01-18 14:07:04,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:04,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:07:04,731 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:04,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:07:04,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:04,732 INFO L87 Difference]: Start difference. First operand 1428 states and 4212 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:04,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:04,904 INFO L93 Difference]: Finished difference Result 1741 states and 5077 transitions. [2022-01-18 14:07:04,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:07:04,908 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:04,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:04,910 INFO L225 Difference]: With dead ends: 1741 [2022-01-18 14:07:04,910 INFO L226 Difference]: Without dead ends: 1630 [2022-01-18 14:07:04,911 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:04,911 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 52 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:04,911 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 228 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 555 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:04,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1630 states. [2022-01-18 14:07:04,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1630 to 1396. [2022-01-18 14:07:04,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1396 states, 1395 states have (on average 2.9505376344086023) internal successors, (4116), 1395 states have internal predecessors, (4116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:04,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1396 states to 1396 states and 4116 transitions. [2022-01-18 14:07:04,925 INFO L78 Accepts]: Start accepts. Automaton has 1396 states and 4116 transitions. Word has length 26 [2022-01-18 14:07:04,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:04,925 INFO L470 AbstractCegarLoop]: Abstraction has 1396 states and 4116 transitions. [2022-01-18 14:07:04,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:04,925 INFO L276 IsEmpty]: Start isEmpty. Operand 1396 states and 4116 transitions. [2022-01-18 14:07:04,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:04,927 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:04,927 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:04,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2022-01-18 14:07:04,927 INFO L402 AbstractCegarLoop]: === Iteration 143 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:04,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:04,927 INFO L85 PathProgramCache]: Analyzing trace with hash 780936475, now seen corresponding path program 141 times [2022-01-18 14:07:04,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:04,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456296706] [2022-01-18 14:07:04,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:04,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:04,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:04,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:04,982 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:04,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456296706] [2022-01-18 14:07:04,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456296706] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:04,982 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:04,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:07:04,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445224593] [2022-01-18 14:07:04,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:04,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:07:04,982 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:04,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:07:04,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:04,983 INFO L87 Difference]: Start difference. First operand 1396 states and 4116 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:05,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:05,156 INFO L93 Difference]: Finished difference Result 1586 states and 4638 transitions. [2022-01-18 14:07:05,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:07:05,157 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:05,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:05,159 INFO L225 Difference]: With dead ends: 1586 [2022-01-18 14:07:05,159 INFO L226 Difference]: Without dead ends: 1507 [2022-01-18 14:07:05,159 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:05,159 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 45 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:05,159 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 213 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 550 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:05,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1507 states. [2022-01-18 14:07:05,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1507 to 1406. [2022-01-18 14:07:05,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1406 states, 1405 states have (on average 2.9508896797153024) internal successors, (4146), 1405 states have internal predecessors, (4146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:05,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1406 states to 1406 states and 4146 transitions. [2022-01-18 14:07:05,173 INFO L78 Accepts]: Start accepts. Automaton has 1406 states and 4146 transitions. Word has length 26 [2022-01-18 14:07:05,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:05,173 INFO L470 AbstractCegarLoop]: Abstraction has 1406 states and 4146 transitions. [2022-01-18 14:07:05,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:05,173 INFO L276 IsEmpty]: Start isEmpty. Operand 1406 states and 4146 transitions. [2022-01-18 14:07:05,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:05,174 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:05,174 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:05,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2022-01-18 14:07:05,175 INFO L402 AbstractCegarLoop]: === Iteration 144 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:05,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:05,175 INFO L85 PathProgramCache]: Analyzing trace with hash -1155364451, now seen corresponding path program 142 times [2022-01-18 14:07:05,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:05,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64549040] [2022-01-18 14:07:05,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:05,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:05,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:05,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:05,231 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:05,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64549040] [2022-01-18 14:07:05,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64549040] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:05,231 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:05,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:07:05,231 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481701771] [2022-01-18 14:07:05,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:05,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:07:05,232 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:05,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:07:05,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:05,232 INFO L87 Difference]: Start difference. First operand 1406 states and 4146 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:05,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:05,419 INFO L93 Difference]: Finished difference Result 1622 states and 4736 transitions. [2022-01-18 14:07:05,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:07:05,419 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:05,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:05,421 INFO L225 Difference]: With dead ends: 1622 [2022-01-18 14:07:05,422 INFO L226 Difference]: Without dead ends: 1518 [2022-01-18 14:07:05,422 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:05,422 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 50 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:05,422 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 214 Invalid, 595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:05,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1518 states. [2022-01-18 14:07:05,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1518 to 1422. [2022-01-18 14:07:05,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1422 states, 1421 states have (on average 2.952146375791696) internal successors, (4195), 1421 states have internal predecessors, (4195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:05,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1422 states to 1422 states and 4195 transitions. [2022-01-18 14:07:05,436 INFO L78 Accepts]: Start accepts. Automaton has 1422 states and 4195 transitions. Word has length 26 [2022-01-18 14:07:05,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:05,436 INFO L470 AbstractCegarLoop]: Abstraction has 1422 states and 4195 transitions. [2022-01-18 14:07:05,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:05,436 INFO L276 IsEmpty]: Start isEmpty. Operand 1422 states and 4195 transitions. [2022-01-18 14:07:05,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:05,437 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:05,437 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:05,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2022-01-18 14:07:05,437 INFO L402 AbstractCegarLoop]: === Iteration 145 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:05,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:05,438 INFO L85 PathProgramCache]: Analyzing trace with hash -787992067, now seen corresponding path program 143 times [2022-01-18 14:07:05,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:05,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297710158] [2022-01-18 14:07:05,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:05,438 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:05,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:05,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:05,522 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:05,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297710158] [2022-01-18 14:07:05,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297710158] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:05,522 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:05,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:05,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268341589] [2022-01-18 14:07:05,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:05,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:05,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:05,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:05,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:05,523 INFO L87 Difference]: Start difference. First operand 1422 states and 4195 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:05,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:05,742 INFO L93 Difference]: Finished difference Result 1651 states and 4814 transitions. [2022-01-18 14:07:05,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:05,742 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:05,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:05,744 INFO L225 Difference]: With dead ends: 1651 [2022-01-18 14:07:05,744 INFO L226 Difference]: Without dead ends: 1572 [2022-01-18 14:07:05,744 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:05,745 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 50 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 675 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:05,745 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 264 Invalid, 685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 675 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:05,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1572 states. [2022-01-18 14:07:05,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1572 to 1446. [2022-01-18 14:07:05,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1446 states, 1445 states have (on average 2.9487889273356402) internal successors, (4261), 1445 states have internal predecessors, (4261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:05,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1446 states to 1446 states and 4261 transitions. [2022-01-18 14:07:05,759 INFO L78 Accepts]: Start accepts. Automaton has 1446 states and 4261 transitions. Word has length 26 [2022-01-18 14:07:05,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:05,759 INFO L470 AbstractCegarLoop]: Abstraction has 1446 states and 4261 transitions. [2022-01-18 14:07:05,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:05,759 INFO L276 IsEmpty]: Start isEmpty. Operand 1446 states and 4261 transitions. [2022-01-18 14:07:05,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:05,760 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:05,760 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:05,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2022-01-18 14:07:05,761 INFO L402 AbstractCegarLoop]: === Iteration 146 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:05,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:05,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1191691139, now seen corresponding path program 144 times [2022-01-18 14:07:05,761 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:05,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270684030] [2022-01-18 14:07:05,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:05,761 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:05,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:05,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:05,831 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:05,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270684030] [2022-01-18 14:07:05,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270684030] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:05,831 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:05,831 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:05,831 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027394302] [2022-01-18 14:07:05,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:05,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:05,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:05,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:05,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:05,832 INFO L87 Difference]: Start difference. First operand 1446 states and 4261 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:06,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:06,045 INFO L93 Difference]: Finished difference Result 1620 states and 4730 transitions. [2022-01-18 14:07:06,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:06,046 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:06,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:06,048 INFO L225 Difference]: With dead ends: 1620 [2022-01-18 14:07:06,048 INFO L226 Difference]: Without dead ends: 1509 [2022-01-18 14:07:06,048 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:06,048 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 52 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 696 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:06,048 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 259 Invalid, 704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 696 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:06,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1509 states. [2022-01-18 14:07:06,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1509 to 1461. [2022-01-18 14:07:06,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1461 states, 1460 states have (on average 2.9506849315068493) internal successors, (4308), 1460 states have internal predecessors, (4308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:06,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1461 states to 1461 states and 4308 transitions. [2022-01-18 14:07:06,068 INFO L78 Accepts]: Start accepts. Automaton has 1461 states and 4308 transitions. Word has length 26 [2022-01-18 14:07:06,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:06,069 INFO L470 AbstractCegarLoop]: Abstraction has 1461 states and 4308 transitions. [2022-01-18 14:07:06,069 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:06,069 INFO L276 IsEmpty]: Start isEmpty. Operand 1461 states and 4308 transitions. [2022-01-18 14:07:06,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:06,070 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:06,070 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:06,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2022-01-18 14:07:06,070 INFO L402 AbstractCegarLoop]: === Iteration 147 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:06,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:06,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1837111941, now seen corresponding path program 145 times [2022-01-18 14:07:06,071 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:06,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173312341] [2022-01-18 14:07:06,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:06,071 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:06,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:06,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:06,140 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:06,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173312341] [2022-01-18 14:07:06,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173312341] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:06,140 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:06,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:06,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115741932] [2022-01-18 14:07:06,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:06,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:06,141 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:06,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:06,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:06,141 INFO L87 Difference]: Start difference. First operand 1461 states and 4308 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:06,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:06,368 INFO L93 Difference]: Finished difference Result 1737 states and 5065 transitions. [2022-01-18 14:07:06,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:06,368 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:06,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:06,370 INFO L225 Difference]: With dead ends: 1737 [2022-01-18 14:07:06,370 INFO L226 Difference]: Without dead ends: 1640 [2022-01-18 14:07:06,370 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:06,371 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 56 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 724 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:06,371 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 267 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 724 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:06,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1640 states. [2022-01-18 14:07:06,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1640 to 1487. [2022-01-18 14:07:06,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1487 states, 1486 states have (on average 2.958277254374159) internal successors, (4396), 1486 states have internal predecessors, (4396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:06,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1487 states to 1487 states and 4396 transitions. [2022-01-18 14:07:06,385 INFO L78 Accepts]: Start accepts. Automaton has 1487 states and 4396 transitions. Word has length 26 [2022-01-18 14:07:06,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:06,386 INFO L470 AbstractCegarLoop]: Abstraction has 1487 states and 4396 transitions. [2022-01-18 14:07:06,386 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:06,386 INFO L276 IsEmpty]: Start isEmpty. Operand 1487 states and 4396 transitions. [2022-01-18 14:07:06,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:06,387 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:06,387 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:06,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2022-01-18 14:07:06,387 INFO L402 AbstractCegarLoop]: === Iteration 148 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:06,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:06,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1925048675, now seen corresponding path program 146 times [2022-01-18 14:07:06,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:06,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477606186] [2022-01-18 14:07:06,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:06,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:06,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:06,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:06,454 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:06,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477606186] [2022-01-18 14:07:06,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477606186] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:06,454 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:06,454 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:06,454 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326434710] [2022-01-18 14:07:06,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:06,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:06,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:06,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:06,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:06,454 INFO L87 Difference]: Start difference. First operand 1487 states and 4396 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:06,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:06,668 INFO L93 Difference]: Finished difference Result 1672 states and 4884 transitions. [2022-01-18 14:07:06,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:06,668 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:06,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:06,670 INFO L225 Difference]: With dead ends: 1672 [2022-01-18 14:07:06,670 INFO L226 Difference]: Without dead ends: 1584 [2022-01-18 14:07:06,670 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:06,671 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 53 mSDsluCounter, 473 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:06,671 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 261 Invalid, 710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 702 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:06,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1584 states. [2022-01-18 14:07:06,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1584 to 1485. [2022-01-18 14:07:06,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1485 states, 1484 states have (on average 2.9588948787061993) internal successors, (4391), 1484 states have internal predecessors, (4391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:06,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1485 states to 1485 states and 4391 transitions. [2022-01-18 14:07:06,685 INFO L78 Accepts]: Start accepts. Automaton has 1485 states and 4391 transitions. Word has length 26 [2022-01-18 14:07:06,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:06,685 INFO L470 AbstractCegarLoop]: Abstraction has 1485 states and 4391 transitions. [2022-01-18 14:07:06,685 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:06,685 INFO L276 IsEmpty]: Start isEmpty. Operand 1485 states and 4391 transitions. [2022-01-18 14:07:06,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:06,687 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:06,687 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:06,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2022-01-18 14:07:06,687 INFO L402 AbstractCegarLoop]: === Iteration 149 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:06,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:06,687 INFO L85 PathProgramCache]: Analyzing trace with hash -2063040359, now seen corresponding path program 147 times [2022-01-18 14:07:06,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:06,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367751841] [2022-01-18 14:07:06,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:06,687 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:06,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:06,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:06,752 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:06,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367751841] [2022-01-18 14:07:06,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367751841] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:06,753 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:06,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:06,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311305983] [2022-01-18 14:07:06,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:06,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:06,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:06,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:06,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:06,753 INFO L87 Difference]: Start difference. First operand 1485 states and 4391 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:06,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:06,967 INFO L93 Difference]: Finished difference Result 1717 states and 5001 transitions. [2022-01-18 14:07:06,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:06,967 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:06,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:06,970 INFO L225 Difference]: With dead ends: 1717 [2022-01-18 14:07:06,970 INFO L226 Difference]: Without dead ends: 1584 [2022-01-18 14:07:06,970 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:06,970 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 59 mSDsluCounter, 501 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:06,970 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 286 Invalid, 708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 698 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:06,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1584 states. [2022-01-18 14:07:06,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1584 to 1461. [2022-01-18 14:07:06,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1461 states, 1460 states have (on average 2.956849315068493) internal successors, (4317), 1460 states have internal predecessors, (4317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:06,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1461 states to 1461 states and 4317 transitions. [2022-01-18 14:07:06,984 INFO L78 Accepts]: Start accepts. Automaton has 1461 states and 4317 transitions. Word has length 26 [2022-01-18 14:07:06,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:06,984 INFO L470 AbstractCegarLoop]: Abstraction has 1461 states and 4317 transitions. [2022-01-18 14:07:06,984 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:06,984 INFO L276 IsEmpty]: Start isEmpty. Operand 1461 states and 4317 transitions. [2022-01-18 14:07:06,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:06,986 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:06,986 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:06,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2022-01-18 14:07:06,986 INFO L402 AbstractCegarLoop]: === Iteration 150 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:06,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:06,986 INFO L85 PathProgramCache]: Analyzing trace with hash 2079486193, now seen corresponding path program 148 times [2022-01-18 14:07:06,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:06,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945288733] [2022-01-18 14:07:06,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:06,986 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:06,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:07,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:07,048 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:07,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945288733] [2022-01-18 14:07:07,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945288733] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:07,048 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:07,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:07,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811336132] [2022-01-18 14:07:07,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:07,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:07,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:07,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:07,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:07,049 INFO L87 Difference]: Start difference. First operand 1461 states and 4317 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:07,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:07,282 INFO L93 Difference]: Finished difference Result 1724 states and 4996 transitions. [2022-01-18 14:07:07,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:07,282 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:07,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:07,285 INFO L225 Difference]: With dead ends: 1724 [2022-01-18 14:07:07,285 INFO L226 Difference]: Without dead ends: 1544 [2022-01-18 14:07:07,285 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:07,285 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 65 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 748 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:07,285 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 289 Invalid, 760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 748 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:07,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1544 states. [2022-01-18 14:07:07,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1544 to 1422. [2022-01-18 14:07:07,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1422 states, 1421 states have (on average 2.938775510204082) internal successors, (4176), 1421 states have internal predecessors, (4176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:07,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1422 states to 1422 states and 4176 transitions. [2022-01-18 14:07:07,299 INFO L78 Accepts]: Start accepts. Automaton has 1422 states and 4176 transitions. Word has length 26 [2022-01-18 14:07:07,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:07,299 INFO L470 AbstractCegarLoop]: Abstraction has 1422 states and 4176 transitions. [2022-01-18 14:07:07,299 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:07,299 INFO L276 IsEmpty]: Start isEmpty. Operand 1422 states and 4176 transitions. [2022-01-18 14:07:07,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:07,301 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:07,301 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:07,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2022-01-18 14:07:07,301 INFO L402 AbstractCegarLoop]: === Iteration 151 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:07,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:07,301 INFO L85 PathProgramCache]: Analyzing trace with hash -700501831, now seen corresponding path program 149 times [2022-01-18 14:07:07,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:07,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69326816] [2022-01-18 14:07:07,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:07,301 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:07,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:07,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:07,363 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:07,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69326816] [2022-01-18 14:07:07,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69326816] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:07,363 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:07,363 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:07,363 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868978414] [2022-01-18 14:07:07,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:07,364 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:07,364 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:07,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:07,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:07,364 INFO L87 Difference]: Start difference. First operand 1422 states and 4176 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:07,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:07,572 INFO L93 Difference]: Finished difference Result 1593 states and 4622 transitions. [2022-01-18 14:07:07,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:07,572 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:07,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:07,574 INFO L225 Difference]: With dead ends: 1593 [2022-01-18 14:07:07,574 INFO L226 Difference]: Without dead ends: 1514 [2022-01-18 14:07:07,574 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:07,575 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 45 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 667 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:07,575 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 232 Invalid, 677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 667 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:07,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1514 states. [2022-01-18 14:07:07,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1514 to 1421. [2022-01-18 14:07:07,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1421 states, 1420 states have (on average 2.9380281690140846) internal successors, (4172), 1420 states have internal predecessors, (4172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:07,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1421 states to 1421 states and 4172 transitions. [2022-01-18 14:07:07,589 INFO L78 Accepts]: Start accepts. Automaton has 1421 states and 4172 transitions. Word has length 26 [2022-01-18 14:07:07,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:07,589 INFO L470 AbstractCegarLoop]: Abstraction has 1421 states and 4172 transitions. [2022-01-18 14:07:07,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:07,589 INFO L276 IsEmpty]: Start isEmpty. Operand 1421 states and 4172 transitions. [2022-01-18 14:07:07,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:07,590 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:07,590 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:07,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2022-01-18 14:07:07,590 INFO L402 AbstractCegarLoop]: === Iteration 152 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:07,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:07,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1658164539, now seen corresponding path program 150 times [2022-01-18 14:07:07,591 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:07,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161883139] [2022-01-18 14:07:07,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:07,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:07,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:07,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:07,655 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:07,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161883139] [2022-01-18 14:07:07,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161883139] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:07,656 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:07,656 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:07,656 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595001630] [2022-01-18 14:07:07,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:07,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:07,656 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:07,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:07,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:07,656 INFO L87 Difference]: Start difference. First operand 1421 states and 4172 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:07,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:07,878 INFO L93 Difference]: Finished difference Result 1587 states and 4608 transitions. [2022-01-18 14:07:07,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:07,878 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:07,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:07,880 INFO L225 Difference]: With dead ends: 1587 [2022-01-18 14:07:07,881 INFO L226 Difference]: Without dead ends: 1483 [2022-01-18 14:07:07,881 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:07,881 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 50 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 710 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:07,881 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 233 Invalid, 722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 710 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:07,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1483 states. [2022-01-18 14:07:07,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1483 to 1422. [2022-01-18 14:07:07,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1422 states, 1421 states have (on average 2.936664320900774) internal successors, (4173), 1421 states have internal predecessors, (4173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:07,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1422 states to 1422 states and 4173 transitions. [2022-01-18 14:07:07,895 INFO L78 Accepts]: Start accepts. Automaton has 1422 states and 4173 transitions. Word has length 26 [2022-01-18 14:07:07,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:07,895 INFO L470 AbstractCegarLoop]: Abstraction has 1422 states and 4173 transitions. [2022-01-18 14:07:07,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:07,895 INFO L276 IsEmpty]: Start isEmpty. Operand 1422 states and 4173 transitions. [2022-01-18 14:07:07,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:07,896 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:07,896 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:07,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2022-01-18 14:07:07,896 INFO L402 AbstractCegarLoop]: === Iteration 153 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:07,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:07,897 INFO L85 PathProgramCache]: Analyzing trace with hash 2025536923, now seen corresponding path program 151 times [2022-01-18 14:07:07,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:07,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217650585] [2022-01-18 14:07:07,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:07,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:07,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:07,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:07,957 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:07,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217650585] [2022-01-18 14:07:07,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217650585] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:07,957 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:07,957 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:07,958 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530328608] [2022-01-18 14:07:07,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:07,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:07,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:07,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:07,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:07,958 INFO L87 Difference]: Start difference. First operand 1422 states and 4173 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:08,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:08,170 INFO L93 Difference]: Finished difference Result 1574 states and 4561 transitions. [2022-01-18 14:07:08,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:08,170 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:08,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:08,172 INFO L225 Difference]: With dead ends: 1574 [2022-01-18 14:07:08,172 INFO L226 Difference]: Without dead ends: 1495 [2022-01-18 14:07:08,172 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:08,172 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 44 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:08,172 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 228 Invalid, 673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 665 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:08,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1495 states. [2022-01-18 14:07:08,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1495 to 1423. [2022-01-18 14:07:08,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1423 states, 1422 states have (on average 2.9374120956399437) internal successors, (4177), 1422 states have internal predecessors, (4177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:08,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1423 states to 1423 states and 4177 transitions. [2022-01-18 14:07:08,186 INFO L78 Accepts]: Start accepts. Automaton has 1423 states and 4177 transitions. Word has length 26 [2022-01-18 14:07:08,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:08,186 INFO L470 AbstractCegarLoop]: Abstraction has 1423 states and 4177 transitions. [2022-01-18 14:07:08,186 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:08,186 INFO L276 IsEmpty]: Start isEmpty. Operand 1423 states and 4177 transitions. [2022-01-18 14:07:08,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:08,188 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:08,188 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:08,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2022-01-18 14:07:08,188 INFO L402 AbstractCegarLoop]: === Iteration 154 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:08,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:08,188 INFO L85 PathProgramCache]: Analyzing trace with hash -289747167, now seen corresponding path program 152 times [2022-01-18 14:07:08,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:08,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660421028] [2022-01-18 14:07:08,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:08,188 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:08,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:08,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:08,248 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:08,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660421028] [2022-01-18 14:07:08,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660421028] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:08,248 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:08,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:08,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555938516] [2022-01-18 14:07:08,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:08,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:08,249 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:08,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:08,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:08,249 INFO L87 Difference]: Start difference. First operand 1423 states and 4177 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:08,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:08,464 INFO L93 Difference]: Finished difference Result 1563 states and 4535 transitions. [2022-01-18 14:07:08,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:08,464 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:08,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:08,466 INFO L225 Difference]: With dead ends: 1563 [2022-01-18 14:07:08,467 INFO L226 Difference]: Without dead ends: 1480 [2022-01-18 14:07:08,467 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:08,467 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 46 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 682 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:08,467 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 225 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 682 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:08,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1480 states. [2022-01-18 14:07:08,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1480 to 1424. [2022-01-18 14:07:08,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1424 states, 1423 states have (on average 2.936753338018271) internal successors, (4179), 1423 states have internal predecessors, (4179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:08,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1424 states to 1424 states and 4179 transitions. [2022-01-18 14:07:08,481 INFO L78 Accepts]: Start accepts. Automaton has 1424 states and 4179 transitions. Word has length 26 [2022-01-18 14:07:08,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:08,481 INFO L470 AbstractCegarLoop]: Abstraction has 1424 states and 4179 transitions. [2022-01-18 14:07:08,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:08,481 INFO L276 IsEmpty]: Start isEmpty. Operand 1424 states and 4179 transitions. [2022-01-18 14:07:08,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:08,482 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:08,482 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:08,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2022-01-18 14:07:08,482 INFO L402 AbstractCegarLoop]: === Iteration 155 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:08,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:08,483 INFO L85 PathProgramCache]: Analyzing trace with hash 355673635, now seen corresponding path program 153 times [2022-01-18 14:07:08,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:08,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255910493] [2022-01-18 14:07:08,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:08,483 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:08,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:08,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:08,543 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:08,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255910493] [2022-01-18 14:07:08,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255910493] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:08,543 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:08,543 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:08,543 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52433030] [2022-01-18 14:07:08,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:08,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:08,543 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:08,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:08,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:08,544 INFO L87 Difference]: Start difference. First operand 1424 states and 4179 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:08,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:08,769 INFO L93 Difference]: Finished difference Result 1627 states and 4733 transitions. [2022-01-18 14:07:08,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:08,769 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:08,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:08,771 INFO L225 Difference]: With dead ends: 1627 [2022-01-18 14:07:08,771 INFO L226 Difference]: Without dead ends: 1530 [2022-01-18 14:07:08,772 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:08,772 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 50 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:08,772 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 231 Invalid, 724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 714 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:08,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1530 states. [2022-01-18 14:07:08,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1530 to 1431. [2022-01-18 14:07:08,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1431 states, 1430 states have (on average 2.9391608391608393) internal successors, (4203), 1430 states have internal predecessors, (4203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:08,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1431 states to 1431 states and 4203 transitions. [2022-01-18 14:07:08,786 INFO L78 Accepts]: Start accepts. Automaton has 1431 states and 4203 transitions. Word has length 26 [2022-01-18 14:07:08,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:08,786 INFO L470 AbstractCegarLoop]: Abstraction has 1431 states and 4203 transitions. [2022-01-18 14:07:08,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:08,786 INFO L276 IsEmpty]: Start isEmpty. Operand 1431 states and 4203 transitions. [2022-01-18 14:07:08,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:08,788 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:08,788 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:08,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2022-01-18 14:07:08,788 INFO L402 AbstractCegarLoop]: === Iteration 156 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:08,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:08,788 INFO L85 PathProgramCache]: Analyzing trace with hash 443610369, now seen corresponding path program 154 times [2022-01-18 14:07:08,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:08,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672890984] [2022-01-18 14:07:08,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:08,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:08,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:08,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:08,848 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:08,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672890984] [2022-01-18 14:07:08,848 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672890984] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:08,848 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:08,848 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:08,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121243961] [2022-01-18 14:07:08,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:08,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:08,849 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:08,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:08,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:08,849 INFO L87 Difference]: Start difference. First operand 1431 states and 4203 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:09,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:09,059 INFO L93 Difference]: Finished difference Result 1607 states and 4663 transitions. [2022-01-18 14:07:09,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:09,060 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:09,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:09,062 INFO L225 Difference]: With dead ends: 1607 [2022-01-18 14:07:09,062 INFO L226 Difference]: Without dead ends: 1519 [2022-01-18 14:07:09,062 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:09,062 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 47 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 688 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:09,062 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 227 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 688 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:09,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1519 states. [2022-01-18 14:07:09,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1519 to 1430. [2022-01-18 14:07:09,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1430 states, 1429 states have (on average 2.941217634709587) internal successors, (4203), 1429 states have internal predecessors, (4203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:09,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1430 states to 1430 states and 4203 transitions. [2022-01-18 14:07:09,076 INFO L78 Accepts]: Start accepts. Automaton has 1430 states and 4203 transitions. Word has length 26 [2022-01-18 14:07:09,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:09,076 INFO L470 AbstractCegarLoop]: Abstraction has 1430 states and 4203 transitions. [2022-01-18 14:07:09,076 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:09,076 INFO L276 IsEmpty]: Start isEmpty. Operand 1430 states and 4203 transitions. [2022-01-18 14:07:09,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:09,078 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:09,078 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:09,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2022-01-18 14:07:09,078 INFO L402 AbstractCegarLoop]: === Iteration 157 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:09,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:09,078 INFO L85 PathProgramCache]: Analyzing trace with hash -757012227, now seen corresponding path program 155 times [2022-01-18 14:07:09,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:09,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763842693] [2022-01-18 14:07:09,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:09,078 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:09,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:09,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:09,137 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:09,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763842693] [2022-01-18 14:07:09,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763842693] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:09,138 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:09,138 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:09,138 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828504623] [2022-01-18 14:07:09,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:09,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:09,138 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:09,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:09,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:09,138 INFO L87 Difference]: Start difference. First operand 1430 states and 4203 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:09,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:09,344 INFO L93 Difference]: Finished difference Result 1567 states and 4558 transitions. [2022-01-18 14:07:09,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:09,344 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:09,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:09,346 INFO L225 Difference]: With dead ends: 1567 [2022-01-18 14:07:09,346 INFO L226 Difference]: Without dead ends: 1488 [2022-01-18 14:07:09,346 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:09,347 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 45 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 671 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:09,347 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 230 Invalid, 679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 671 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:09,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1488 states. [2022-01-18 14:07:09,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1488 to 1429. [2022-01-18 14:07:09,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1429 states, 1428 states have (on average 2.9404761904761907) internal successors, (4199), 1428 states have internal predecessors, (4199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:09,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1429 states to 1429 states and 4199 transitions. [2022-01-18 14:07:09,360 INFO L78 Accepts]: Start accepts. Automaton has 1429 states and 4199 transitions. Word has length 26 [2022-01-18 14:07:09,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:09,361 INFO L470 AbstractCegarLoop]: Abstraction has 1429 states and 4199 transitions. [2022-01-18 14:07:09,361 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:09,361 INFO L276 IsEmpty]: Start isEmpty. Operand 1429 states and 4199 transitions. [2022-01-18 14:07:09,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:09,362 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:09,362 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:09,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2022-01-18 14:07:09,362 INFO L402 AbstractCegarLoop]: === Iteration 158 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:09,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:09,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1222670979, now seen corresponding path program 156 times [2022-01-18 14:07:09,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:09,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393020729] [2022-01-18 14:07:09,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:09,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:09,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:09,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:09,436 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:09,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393020729] [2022-01-18 14:07:09,436 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393020729] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:09,436 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:09,436 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:09,436 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460168565] [2022-01-18 14:07:09,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:09,437 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:09,437 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:09,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:09,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:09,437 INFO L87 Difference]: Start difference. First operand 1429 states and 4199 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:09,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:09,647 INFO L93 Difference]: Finished difference Result 1572 states and 4563 transitions. [2022-01-18 14:07:09,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:09,647 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:09,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:09,649 INFO L225 Difference]: With dead ends: 1572 [2022-01-18 14:07:09,649 INFO L226 Difference]: Without dead ends: 1489 [2022-01-18 14:07:09,649 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:09,649 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 47 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 688 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:09,649 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 227 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 688 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:09,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1489 states. [2022-01-18 14:07:09,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1489 to 1430. [2022-01-18 14:07:09,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1430 states, 1429 states have (on average 2.9391182645206437) internal successors, (4200), 1429 states have internal predecessors, (4200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:09,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1430 states to 1430 states and 4200 transitions. [2022-01-18 14:07:09,663 INFO L78 Accepts]: Start accepts. Automaton has 1430 states and 4200 transitions. Word has length 26 [2022-01-18 14:07:09,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:09,663 INFO L470 AbstractCegarLoop]: Abstraction has 1430 states and 4200 transitions. [2022-01-18 14:07:09,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:09,663 INFO L276 IsEmpty]: Start isEmpty. Operand 1430 states and 4200 transitions. [2022-01-18 14:07:09,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:09,665 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:09,665 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:09,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2022-01-18 14:07:09,665 INFO L402 AbstractCegarLoop]: === Iteration 159 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:09,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:09,665 INFO L85 PathProgramCache]: Analyzing trace with hash 2145810523, now seen corresponding path program 157 times [2022-01-18 14:07:09,665 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:09,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285977542] [2022-01-18 14:07:09,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:09,665 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:09,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:09,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:09,726 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:09,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285977542] [2022-01-18 14:07:09,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285977542] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:09,726 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:09,726 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:09,726 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696589305] [2022-01-18 14:07:09,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:09,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:09,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:09,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:09,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:09,727 INFO L87 Difference]: Start difference. First operand 1430 states and 4200 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:09,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:09,927 INFO L93 Difference]: Finished difference Result 1645 states and 4769 transitions. [2022-01-18 14:07:09,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:09,927 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:09,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:09,929 INFO L225 Difference]: With dead ends: 1645 [2022-01-18 14:07:09,929 INFO L226 Difference]: Without dead ends: 1554 [2022-01-18 14:07:09,929 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:09,929 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 46 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:09,930 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 225 Invalid, 663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 651 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:09,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1554 states. [2022-01-18 14:07:09,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1554 to 1426. [2022-01-18 14:07:09,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1426 states, 1425 states have (on average 2.937543859649123) internal successors, (4186), 1425 states have internal predecessors, (4186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:09,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 4186 transitions. [2022-01-18 14:07:09,951 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 4186 transitions. Word has length 26 [2022-01-18 14:07:09,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:09,952 INFO L470 AbstractCegarLoop]: Abstraction has 1426 states and 4186 transitions. [2022-01-18 14:07:09,952 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:09,952 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 4186 transitions. [2022-01-18 14:07:09,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:09,953 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:09,953 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:09,953 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2022-01-18 14:07:09,953 INFO L402 AbstractCegarLoop]: === Iteration 160 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:09,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:09,954 INFO L85 PathProgramCache]: Analyzing trace with hash -26396157, now seen corresponding path program 158 times [2022-01-18 14:07:09,954 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:09,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700230370] [2022-01-18 14:07:09,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:09,954 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:09,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:10,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:10,019 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:10,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700230370] [2022-01-18 14:07:10,019 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700230370] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:10,019 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:10,019 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:10,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350840033] [2022-01-18 14:07:10,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:10,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:10,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:10,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:10,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:10,020 INFO L87 Difference]: Start difference. First operand 1426 states and 4186 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:10,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:10,232 INFO L93 Difference]: Finished difference Result 1595 states and 4605 transitions. [2022-01-18 14:07:10,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:10,232 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:10,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:10,234 INFO L225 Difference]: With dead ends: 1595 [2022-01-18 14:07:10,234 INFO L226 Difference]: Without dead ends: 1496 [2022-01-18 14:07:10,234 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:10,235 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 49 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 696 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:10,235 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 230 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 696 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:10,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1496 states. [2022-01-18 14:07:10,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1496 to 1431. [2022-01-18 14:07:10,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1431 states, 1430 states have (on average 2.9342657342657343) internal successors, (4196), 1430 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:10,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1431 states to 1431 states and 4196 transitions. [2022-01-18 14:07:10,249 INFO L78 Accepts]: Start accepts. Automaton has 1431 states and 4196 transitions. Word has length 26 [2022-01-18 14:07:10,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:10,249 INFO L470 AbstractCegarLoop]: Abstraction has 1431 states and 4196 transitions. [2022-01-18 14:07:10,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:10,249 INFO L276 IsEmpty]: Start isEmpty. Operand 1431 states and 4196 transitions. [2022-01-18 14:07:10,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:10,251 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:10,251 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:10,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2022-01-18 14:07:10,251 INFO L402 AbstractCegarLoop]: === Iteration 161 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:10,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:10,251 INFO L85 PathProgramCache]: Analyzing trace with hash -707649403, now seen corresponding path program 159 times [2022-01-18 14:07:10,251 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:10,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515003069] [2022-01-18 14:07:10,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:10,251 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:10,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:10,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:10,311 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:10,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515003069] [2022-01-18 14:07:10,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515003069] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:10,311 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:10,311 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:10,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326136163] [2022-01-18 14:07:10,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:10,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:10,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:10,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:10,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:10,311 INFO L87 Difference]: Start difference. First operand 1431 states and 4196 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:10,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:10,532 INFO L93 Difference]: Finished difference Result 1626 states and 4726 transitions. [2022-01-18 14:07:10,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:10,532 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:10,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:10,534 INFO L225 Difference]: With dead ends: 1626 [2022-01-18 14:07:10,534 INFO L226 Difference]: Without dead ends: 1529 [2022-01-18 14:07:10,534 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:10,535 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 51 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 716 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:10,535 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 235 Invalid, 728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 716 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:10,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1529 states. [2022-01-18 14:07:10,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1529 to 1429. [2022-01-18 14:07:10,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1429 states, 1428 states have (on average 2.9327731092436973) internal successors, (4188), 1428 states have internal predecessors, (4188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:10,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1429 states to 1429 states and 4188 transitions. [2022-01-18 14:07:10,549 INFO L78 Accepts]: Start accepts. Automaton has 1429 states and 4188 transitions. Word has length 26 [2022-01-18 14:07:10,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:10,549 INFO L470 AbstractCegarLoop]: Abstraction has 1429 states and 4188 transitions. [2022-01-18 14:07:10,549 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:10,549 INFO L276 IsEmpty]: Start isEmpty. Operand 1429 states and 4188 transitions. [2022-01-18 14:07:10,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:10,550 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:10,550 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:10,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2022-01-18 14:07:10,550 INFO L402 AbstractCegarLoop]: === Iteration 162 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:10,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:10,551 INFO L85 PathProgramCache]: Analyzing trace with hash -619712669, now seen corresponding path program 160 times [2022-01-18 14:07:10,551 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:10,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934570349] [2022-01-18 14:07:10,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:10,551 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:10,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:10,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:10,609 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:10,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934570349] [2022-01-18 14:07:10,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934570349] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:10,610 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:10,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:10,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139771023] [2022-01-18 14:07:10,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:10,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:10,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:10,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:10,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:10,610 INFO L87 Difference]: Start difference. First operand 1429 states and 4188 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:10,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:10,818 INFO L93 Difference]: Finished difference Result 1603 states and 4654 transitions. [2022-01-18 14:07:10,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:10,818 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:10,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:10,820 INFO L225 Difference]: With dead ends: 1603 [2022-01-18 14:07:10,820 INFO L226 Difference]: Without dead ends: 1517 [2022-01-18 14:07:10,820 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:10,820 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 48 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 681 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:10,820 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 231 Invalid, 691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 681 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:10,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1517 states. [2022-01-18 14:07:10,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1517 to 1437. [2022-01-18 14:07:10,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1437 states, 1436 states have (on average 2.932451253481894) internal successors, (4211), 1436 states have internal predecessors, (4211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:10,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1437 states to 1437 states and 4211 transitions. [2022-01-18 14:07:10,834 INFO L78 Accepts]: Start accepts. Automaton has 1437 states and 4211 transitions. Word has length 26 [2022-01-18 14:07:10,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:10,835 INFO L470 AbstractCegarLoop]: Abstraction has 1437 states and 4211 transitions. [2022-01-18 14:07:10,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:10,835 INFO L276 IsEmpty]: Start isEmpty. Operand 1437 states and 4211 transitions. [2022-01-18 14:07:10,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:10,836 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:10,836 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:10,836 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2022-01-18 14:07:10,836 INFO L402 AbstractCegarLoop]: === Iteration 163 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:10,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:10,836 INFO L85 PathProgramCache]: Analyzing trace with hash -709472319, now seen corresponding path program 161 times [2022-01-18 14:07:10,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:10,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902675385] [2022-01-18 14:07:10,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:10,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:10,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:10,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:10,896 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:10,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902675385] [2022-01-18 14:07:10,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902675385] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:10,896 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:10,896 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:10,896 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167051860] [2022-01-18 14:07:10,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:10,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:10,896 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:10,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:10,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:10,896 INFO L87 Difference]: Start difference. First operand 1437 states and 4211 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:11,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:11,110 INFO L93 Difference]: Finished difference Result 1577 states and 4563 transitions. [2022-01-18 14:07:11,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:11,110 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:11,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:11,112 INFO L225 Difference]: With dead ends: 1577 [2022-01-18 14:07:11,112 INFO L226 Difference]: Without dead ends: 1482 [2022-01-18 14:07:11,112 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:11,113 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 49 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 684 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:11,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 232 Invalid, 695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 684 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:11,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1482 states. [2022-01-18 14:07:11,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1482 to 1420. [2022-01-18 14:07:11,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1420 states, 1419 states have (on average 2.9358703312191685) internal successors, (4166), 1419 states have internal predecessors, (4166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:11,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1420 states to 1420 states and 4166 transitions. [2022-01-18 14:07:11,127 INFO L78 Accepts]: Start accepts. Automaton has 1420 states and 4166 transitions. Word has length 26 [2022-01-18 14:07:11,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:11,127 INFO L470 AbstractCegarLoop]: Abstraction has 1420 states and 4166 transitions. [2022-01-18 14:07:11,127 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:11,127 INFO L276 IsEmpty]: Start isEmpty. Operand 1420 states and 4166 transitions. [2022-01-18 14:07:11,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:11,128 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:11,128 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:11,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2022-01-18 14:07:11,128 INFO L402 AbstractCegarLoop]: === Iteration 164 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:11,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:11,129 INFO L85 PathProgramCache]: Analyzing trace with hash -107433999, now seen corresponding path program 162 times [2022-01-18 14:07:11,129 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:11,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410337427] [2022-01-18 14:07:11,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:11,129 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:11,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:11,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:11,180 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:11,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410337427] [2022-01-18 14:07:11,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410337427] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:11,181 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:11,181 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:07:11,181 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497252107] [2022-01-18 14:07:11,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:11,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:07:11,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:11,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:07:11,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:11,181 INFO L87 Difference]: Start difference. First operand 1420 states and 4166 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:11,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:11,343 INFO L93 Difference]: Finished difference Result 1724 states and 5023 transitions. [2022-01-18 14:07:11,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:07:11,344 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:11,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:11,346 INFO L225 Difference]: With dead ends: 1724 [2022-01-18 14:07:11,346 INFO L226 Difference]: Without dead ends: 1639 [2022-01-18 14:07:11,346 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:11,346 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 48 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:11,346 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 219 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 515 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:11,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1639 states. [2022-01-18 14:07:11,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1639 to 1456. [2022-01-18 14:07:11,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1456 states, 1455 states have (on average 2.9381443298969074) internal successors, (4275), 1455 states have internal predecessors, (4275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:11,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1456 states to 1456 states and 4275 transitions. [2022-01-18 14:07:11,361 INFO L78 Accepts]: Start accepts. Automaton has 1456 states and 4275 transitions. Word has length 26 [2022-01-18 14:07:11,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:11,361 INFO L470 AbstractCegarLoop]: Abstraction has 1456 states and 4275 transitions. [2022-01-18 14:07:11,361 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:11,361 INFO L276 IsEmpty]: Start isEmpty. Operand 1456 states and 4275 transitions. [2022-01-18 14:07:11,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:11,362 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:11,362 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:11,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2022-01-18 14:07:11,362 INFO L402 AbstractCegarLoop]: === Iteration 165 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:11,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:11,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1872249207, now seen corresponding path program 163 times [2022-01-18 14:07:11,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:11,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984662170] [2022-01-18 14:07:11,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:11,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:11,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:11,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:11,424 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:11,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984662170] [2022-01-18 14:07:11,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984662170] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:11,424 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:11,424 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:11,425 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353725962] [2022-01-18 14:07:11,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:11,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:11,425 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:11,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:11,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:11,425 INFO L87 Difference]: Start difference. First operand 1456 states and 4275 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:11,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:11,627 INFO L93 Difference]: Finished difference Result 1767 states and 5149 transitions. [2022-01-18 14:07:11,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:11,628 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:11,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:11,630 INFO L225 Difference]: With dead ends: 1767 [2022-01-18 14:07:11,630 INFO L226 Difference]: Without dead ends: 1619 [2022-01-18 14:07:11,630 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:11,630 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 59 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:11,631 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 277 Invalid, 663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 651 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:11,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1619 states. [2022-01-18 14:07:11,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1619 to 1417. [2022-01-18 14:07:11,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1417 states, 1416 states have (on average 2.939265536723164) internal successors, (4162), 1416 states have internal predecessors, (4162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:11,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1417 states to 1417 states and 4162 transitions. [2022-01-18 14:07:11,645 INFO L78 Accepts]: Start accepts. Automaton has 1417 states and 4162 transitions. Word has length 26 [2022-01-18 14:07:11,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:11,645 INFO L470 AbstractCegarLoop]: Abstraction has 1417 states and 4162 transitions. [2022-01-18 14:07:11,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:11,645 INFO L276 IsEmpty]: Start isEmpty. Operand 1417 states and 4162 transitions. [2022-01-18 14:07:11,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:11,646 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:11,646 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:11,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2022-01-18 14:07:11,647 INFO L402 AbstractCegarLoop]: === Iteration 166 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:11,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:11,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1817790317, now seen corresponding path program 164 times [2022-01-18 14:07:11,647 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:11,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453277862] [2022-01-18 14:07:11,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:11,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:11,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:11,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:11,712 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:11,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453277862] [2022-01-18 14:07:11,712 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453277862] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:11,712 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:11,712 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:11,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112427972] [2022-01-18 14:07:11,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:11,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:11,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:11,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:11,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:11,713 INFO L87 Difference]: Start difference. First operand 1417 states and 4162 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:11,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:11,917 INFO L93 Difference]: Finished difference Result 1698 states and 4940 transitions. [2022-01-18 14:07:11,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:11,917 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:11,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:11,919 INFO L225 Difference]: With dead ends: 1698 [2022-01-18 14:07:11,919 INFO L226 Difference]: Without dead ends: 1613 [2022-01-18 14:07:11,919 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:11,919 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 51 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:11,920 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 257 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 634 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:11,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1613 states. [2022-01-18 14:07:11,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1613 to 1419. [2022-01-18 14:07:11,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1419 states, 1418 states have (on average 2.9386459802538787) internal successors, (4167), 1418 states have internal predecessors, (4167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:11,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1419 states to 1419 states and 4167 transitions. [2022-01-18 14:07:11,934 INFO L78 Accepts]: Start accepts. Automaton has 1419 states and 4167 transitions. Word has length 26 [2022-01-18 14:07:11,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:11,934 INFO L470 AbstractCegarLoop]: Abstraction has 1419 states and 4167 transitions. [2022-01-18 14:07:11,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:11,934 INFO L276 IsEmpty]: Start isEmpty. Operand 1419 states and 4167 transitions. [2022-01-18 14:07:11,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:11,935 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:11,935 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:11,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2022-01-18 14:07:11,935 INFO L402 AbstractCegarLoop]: === Iteration 167 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:11,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:11,936 INFO L85 PathProgramCache]: Analyzing trace with hash 161892889, now seen corresponding path program 165 times [2022-01-18 14:07:11,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:11,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615092517] [2022-01-18 14:07:11,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:11,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:11,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:11,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:11,997 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:11,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615092517] [2022-01-18 14:07:11,997 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615092517] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:11,997 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:11,997 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:11,997 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920777814] [2022-01-18 14:07:11,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:11,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:11,997 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:11,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:11,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:11,998 INFO L87 Difference]: Start difference. First operand 1419 states and 4167 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:12,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:12,214 INFO L93 Difference]: Finished difference Result 1732 states and 5057 transitions. [2022-01-18 14:07:12,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:12,214 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:12,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:12,216 INFO L225 Difference]: With dead ends: 1732 [2022-01-18 14:07:12,216 INFO L226 Difference]: Without dead ends: 1649 [2022-01-18 14:07:12,216 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:12,217 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 53 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 690 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:12,217 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 262 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 690 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:12,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1649 states. [2022-01-18 14:07:12,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1649 to 1438. [2022-01-18 14:07:12,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1438 states, 1437 states have (on average 2.942240779401531) internal successors, (4228), 1437 states have internal predecessors, (4228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:12,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1438 states to 1438 states and 4228 transitions. [2022-01-18 14:07:12,231 INFO L78 Accepts]: Start accepts. Automaton has 1438 states and 4228 transitions. Word has length 26 [2022-01-18 14:07:12,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:12,231 INFO L470 AbstractCegarLoop]: Abstraction has 1438 states and 4228 transitions. [2022-01-18 14:07:12,231 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:12,231 INFO L276 IsEmpty]: Start isEmpty. Operand 1438 states and 4228 transitions. [2022-01-18 14:07:12,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:12,232 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:12,232 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:12,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2022-01-18 14:07:12,232 INFO L402 AbstractCegarLoop]: === Iteration 168 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:12,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:12,233 INFO L85 PathProgramCache]: Analyzing trace with hash -1087174247, now seen corresponding path program 166 times [2022-01-18 14:07:12,233 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:12,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565426337] [2022-01-18 14:07:12,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:12,233 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:12,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:12,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:12,292 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:12,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565426337] [2022-01-18 14:07:12,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565426337] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:12,293 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:12,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:12,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122120445] [2022-01-18 14:07:12,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:12,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:12,293 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:12,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:12,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:12,293 INFO L87 Difference]: Start difference. First operand 1438 states and 4228 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:12,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:12,507 INFO L93 Difference]: Finished difference Result 1748 states and 5073 transitions. [2022-01-18 14:07:12,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:12,507 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:12,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:12,509 INFO L225 Difference]: With dead ends: 1748 [2022-01-18 14:07:12,509 INFO L226 Difference]: Without dead ends: 1639 [2022-01-18 14:07:12,509 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:12,510 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 55 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 682 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:12,510 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 265 Invalid, 694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 682 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:12,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1639 states. [2022-01-18 14:07:12,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1639 to 1406. [2022-01-18 14:07:12,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1406 states, 1405 states have (on average 2.9395017793594307) internal successors, (4130), 1405 states have internal predecessors, (4130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:12,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1406 states to 1406 states and 4130 transitions. [2022-01-18 14:07:12,524 INFO L78 Accepts]: Start accepts. Automaton has 1406 states and 4130 transitions. Word has length 26 [2022-01-18 14:07:12,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:12,524 INFO L470 AbstractCegarLoop]: Abstraction has 1406 states and 4130 transitions. [2022-01-18 14:07:12,524 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:12,524 INFO L276 IsEmpty]: Start isEmpty. Operand 1406 states and 4130 transitions. [2022-01-18 14:07:12,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:12,525 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:12,525 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:12,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2022-01-18 14:07:12,525 INFO L402 AbstractCegarLoop]: === Iteration 169 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:12,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:12,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1773870385, now seen corresponding path program 167 times [2022-01-18 14:07:12,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:12,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523396177] [2022-01-18 14:07:12,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:12,526 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:12,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:12,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:12,578 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:12,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523396177] [2022-01-18 14:07:12,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523396177] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:12,578 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:12,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 14:07:12,578 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035852271] [2022-01-18 14:07:12,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:12,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 14:07:12,578 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:12,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 14:07:12,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-18 14:07:12,579 INFO L87 Difference]: Start difference. First operand 1406 states and 4130 transitions. Second operand has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:12,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:12,734 INFO L93 Difference]: Finished difference Result 1712 states and 4985 transitions. [2022-01-18 14:07:12,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 14:07:12,734 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:12,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:12,737 INFO L225 Difference]: With dead ends: 1712 [2022-01-18 14:07:12,737 INFO L226 Difference]: Without dead ends: 1615 [2022-01-18 14:07:12,737 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-18 14:07:12,737 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 43 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:12,737 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 185 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 14:07:12,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1615 states. [2022-01-18 14:07:12,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1615 to 1488. [2022-01-18 14:07:12,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1488 states, 1487 states have (on average 2.9361129791526563) internal successors, (4366), 1487 states have internal predecessors, (4366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:12,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1488 states to 1488 states and 4366 transitions. [2022-01-18 14:07:12,752 INFO L78 Accepts]: Start accepts. Automaton has 1488 states and 4366 transitions. Word has length 26 [2022-01-18 14:07:12,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:12,752 INFO L470 AbstractCegarLoop]: Abstraction has 1488 states and 4366 transitions. [2022-01-18 14:07:12,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:12,752 INFO L276 IsEmpty]: Start isEmpty. Operand 1488 states and 4366 transitions. [2022-01-18 14:07:12,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:12,753 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:12,753 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:12,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2022-01-18 14:07:12,754 INFO L402 AbstractCegarLoop]: === Iteration 170 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:12,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:12,754 INFO L85 PathProgramCache]: Analyzing trace with hash -162430541, now seen corresponding path program 168 times [2022-01-18 14:07:12,754 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:12,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192951774] [2022-01-18 14:07:12,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:12,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:12,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:12,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:12,806 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:12,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192951774] [2022-01-18 14:07:12,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192951774] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:12,806 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:12,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:07:12,806 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27983312] [2022-01-18 14:07:12,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:12,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:07:12,806 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:12,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:07:12,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:12,806 INFO L87 Difference]: Start difference. First operand 1488 states and 4366 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:12,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:12,978 INFO L93 Difference]: Finished difference Result 1769 states and 5133 transitions. [2022-01-18 14:07:12,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:07:12,979 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:12,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:12,981 INFO L225 Difference]: With dead ends: 1769 [2022-01-18 14:07:12,981 INFO L226 Difference]: Without dead ends: 1570 [2022-01-18 14:07:12,981 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:12,981 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 57 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 543 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:12,981 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 241 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 543 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:12,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1570 states. [2022-01-18 14:07:12,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1570 to 1462. [2022-01-18 14:07:12,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1462 states, 1461 states have (on average 2.926762491444216) internal successors, (4276), 1461 states have internal predecessors, (4276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:12,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1462 states to 1462 states and 4276 transitions. [2022-01-18 14:07:12,995 INFO L78 Accepts]: Start accepts. Automaton has 1462 states and 4276 transitions. Word has length 26 [2022-01-18 14:07:12,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:12,995 INFO L470 AbstractCegarLoop]: Abstraction has 1462 states and 4276 transitions. [2022-01-18 14:07:12,995 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:12,995 INFO L276 IsEmpty]: Start isEmpty. Operand 1462 states and 4276 transitions. [2022-01-18 14:07:12,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:12,997 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:12,997 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:12,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2022-01-18 14:07:12,997 INFO L402 AbstractCegarLoop]: === Iteration 171 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:12,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:12,997 INFO L85 PathProgramCache]: Analyzing trace with hash 56129615, now seen corresponding path program 169 times [2022-01-18 14:07:12,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:12,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493470257] [2022-01-18 14:07:12,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:12,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:12,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:13,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:13,050 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:13,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493470257] [2022-01-18 14:07:13,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493470257] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:13,050 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:13,050 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:07:13,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711348539] [2022-01-18 14:07:13,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:13,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:07:13,050 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:13,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:07:13,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:13,051 INFO L87 Difference]: Start difference. First operand 1462 states and 4276 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:13,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:13,213 INFO L93 Difference]: Finished difference Result 1668 states and 4808 transitions. [2022-01-18 14:07:13,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:07:13,213 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:13,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:13,216 INFO L225 Difference]: With dead ends: 1668 [2022-01-18 14:07:13,216 INFO L226 Difference]: Without dead ends: 1571 [2022-01-18 14:07:13,216 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:13,216 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 45 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:13,216 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 219 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 516 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:13,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1571 states. [2022-01-18 14:07:13,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1571 to 1452. [2022-01-18 14:07:13,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1452 states, 1451 states have (on average 2.9297036526533424) internal successors, (4251), 1451 states have internal predecessors, (4251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:13,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1452 states to 1452 states and 4251 transitions. [2022-01-18 14:07:13,230 INFO L78 Accepts]: Start accepts. Automaton has 1452 states and 4251 transitions. Word has length 26 [2022-01-18 14:07:13,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:13,230 INFO L470 AbstractCegarLoop]: Abstraction has 1452 states and 4251 transitions. [2022-01-18 14:07:13,230 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:13,230 INFO L276 IsEmpty]: Start isEmpty. Operand 1452 states and 4251 transitions. [2022-01-18 14:07:13,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:13,232 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:13,232 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:13,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2022-01-18 14:07:13,232 INFO L402 AbstractCegarLoop]: === Iteration 172 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:13,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:13,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1880171311, now seen corresponding path program 170 times [2022-01-18 14:07:13,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:13,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163573975] [2022-01-18 14:07:13,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:13,232 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:13,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:13,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:13,290 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:13,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163573975] [2022-01-18 14:07:13,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163573975] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:13,290 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:13,290 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:13,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358521769] [2022-01-18 14:07:13,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:13,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:13,291 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:13,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:13,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:13,291 INFO L87 Difference]: Start difference. First operand 1452 states and 4251 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:13,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:13,500 INFO L93 Difference]: Finished difference Result 1677 states and 4834 transitions. [2022-01-18 14:07:13,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:13,500 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:13,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:13,503 INFO L225 Difference]: With dead ends: 1677 [2022-01-18 14:07:13,503 INFO L226 Difference]: Without dead ends: 1550 [2022-01-18 14:07:13,503 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:13,503 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 59 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:13,503 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 280 Invalid, 697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:13,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1550 states. [2022-01-18 14:07:13,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1550 to 1470. [2022-01-18 14:07:13,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1470 states, 1469 states have (on average 2.9183117767188564) internal successors, (4287), 1469 states have internal predecessors, (4287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:13,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 4287 transitions. [2022-01-18 14:07:13,518 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 4287 transitions. Word has length 26 [2022-01-18 14:07:13,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:13,518 INFO L470 AbstractCegarLoop]: Abstraction has 1470 states and 4287 transitions. [2022-01-18 14:07:13,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:13,518 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 4287 transitions. [2022-01-18 14:07:13,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:13,519 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:13,519 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:13,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2022-01-18 14:07:13,520 INFO L402 AbstractCegarLoop]: === Iteration 173 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:13,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:13,520 INFO L85 PathProgramCache]: Analyzing trace with hash 466884279, now seen corresponding path program 171 times [2022-01-18 14:07:13,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:13,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428152702] [2022-01-18 14:07:13,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:13,520 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:13,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:13,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:13,587 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:13,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428152702] [2022-01-18 14:07:13,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428152702] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:13,587 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:13,587 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:07:13,587 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976031296] [2022-01-18 14:07:13,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:13,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:07:13,587 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:13,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:07:13,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:13,587 INFO L87 Difference]: Start difference. First operand 1470 states and 4287 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:13,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:13,754 INFO L93 Difference]: Finished difference Result 1737 states and 5007 transitions. [2022-01-18 14:07:13,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:07:13,755 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:13,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:13,757 INFO L225 Difference]: With dead ends: 1737 [2022-01-18 14:07:13,757 INFO L226 Difference]: Without dead ends: 1622 [2022-01-18 14:07:13,757 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:13,757 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 50 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:13,757 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 224 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 500 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:13,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1622 states. [2022-01-18 14:07:13,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1622 to 1476. [2022-01-18 14:07:13,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1476 states, 1475 states have (on average 2.9125423728813558) internal successors, (4296), 1475 states have internal predecessors, (4296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:13,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1476 states to 1476 states and 4296 transitions. [2022-01-18 14:07:13,773 INFO L78 Accepts]: Start accepts. Automaton has 1476 states and 4296 transitions. Word has length 26 [2022-01-18 14:07:13,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:13,773 INFO L470 AbstractCegarLoop]: Abstraction has 1476 states and 4296 transitions. [2022-01-18 14:07:13,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:13,773 INFO L276 IsEmpty]: Start isEmpty. Operand 1476 states and 4296 transitions. [2022-01-18 14:07:13,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:13,774 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:13,774 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:13,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2022-01-18 14:07:13,775 INFO L402 AbstractCegarLoop]: === Iteration 174 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:13,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:13,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1112305081, now seen corresponding path program 172 times [2022-01-18 14:07:13,775 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:13,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093747040] [2022-01-18 14:07:13,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:13,775 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:13,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:13,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:13,833 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:13,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093747040] [2022-01-18 14:07:13,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093747040] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:13,833 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:13,833 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:13,833 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664065394] [2022-01-18 14:07:13,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:13,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:13,833 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:13,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:13,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:13,833 INFO L87 Difference]: Start difference. First operand 1476 states and 4296 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:14,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:14,047 INFO L93 Difference]: Finished difference Result 1779 states and 5100 transitions. [2022-01-18 14:07:14,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:14,048 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:14,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:14,050 INFO L225 Difference]: With dead ends: 1779 [2022-01-18 14:07:14,050 INFO L226 Difference]: Without dead ends: 1623 [2022-01-18 14:07:14,050 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:14,050 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 59 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 691 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 691 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:14,050 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 276 Invalid, 701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 691 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:14,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1623 states. [2022-01-18 14:07:14,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1623 to 1498. [2022-01-18 14:07:14,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1498 states, 1497 states have (on average 2.9138276553106213) internal successors, (4362), 1497 states have internal predecessors, (4362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:14,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1498 states to 1498 states and 4362 transitions. [2022-01-18 14:07:14,066 INFO L78 Accepts]: Start accepts. Automaton has 1498 states and 4362 transitions. Word has length 26 [2022-01-18 14:07:14,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:14,066 INFO L470 AbstractCegarLoop]: Abstraction has 1498 states and 4362 transitions. [2022-01-18 14:07:14,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:14,066 INFO L276 IsEmpty]: Start isEmpty. Operand 1498 states and 4362 transitions. [2022-01-18 14:07:14,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:14,068 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:14,068 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:14,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2022-01-18 14:07:14,068 INFO L402 AbstractCegarLoop]: === Iteration 175 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:14,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:14,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1200241815, now seen corresponding path program 173 times [2022-01-18 14:07:14,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:14,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295219388] [2022-01-18 14:07:14,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:14,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:14,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:14,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:14,134 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:14,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295219388] [2022-01-18 14:07:14,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295219388] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:14,134 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:14,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:14,135 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238496003] [2022-01-18 14:07:14,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:14,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:14,135 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:14,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:14,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:14,135 INFO L87 Difference]: Start difference. First operand 1498 states and 4362 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:14,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:14,329 INFO L93 Difference]: Finished difference Result 1823 states and 5246 transitions. [2022-01-18 14:07:14,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:14,329 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:14,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:14,331 INFO L225 Difference]: With dead ends: 1823 [2022-01-18 14:07:14,331 INFO L226 Difference]: Without dead ends: 1667 [2022-01-18 14:07:14,331 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:14,339 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 56 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:14,339 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 277 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 627 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:14,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1667 states. [2022-01-18 14:07:14,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1667 to 1522. [2022-01-18 14:07:14,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1522 states, 1521 states have (on average 2.9145299145299144) internal successors, (4433), 1521 states have internal predecessors, (4433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:14,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1522 states to 1522 states and 4433 transitions. [2022-01-18 14:07:14,355 INFO L78 Accepts]: Start accepts. Automaton has 1522 states and 4433 transitions. Word has length 26 [2022-01-18 14:07:14,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:14,355 INFO L470 AbstractCegarLoop]: Abstraction has 1522 states and 4433 transitions. [2022-01-18 14:07:14,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:14,355 INFO L276 IsEmpty]: Start isEmpty. Operand 1522 states and 4433 transitions. [2022-01-18 14:07:14,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:14,356 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:14,356 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:14,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2022-01-18 14:07:14,356 INFO L402 AbstractCegarLoop]: === Iteration 176 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:14,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:14,357 INFO L85 PathProgramCache]: Analyzing trace with hash -562994771, now seen corresponding path program 174 times [2022-01-18 14:07:14,357 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:14,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119541805] [2022-01-18 14:07:14,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:14,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:14,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:14,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:14,409 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:14,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119541805] [2022-01-18 14:07:14,409 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119541805] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:14,409 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:14,409 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:07:14,409 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157412132] [2022-01-18 14:07:14,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:14,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:07:14,409 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:14,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:07:14,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:14,409 INFO L87 Difference]: Start difference. First operand 1522 states and 4433 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:14,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:14,579 INFO L93 Difference]: Finished difference Result 1900 states and 5461 transitions. [2022-01-18 14:07:14,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:07:14,579 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:14,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:14,582 INFO L225 Difference]: With dead ends: 1900 [2022-01-18 14:07:14,582 INFO L226 Difference]: Without dead ends: 1636 [2022-01-18 14:07:14,582 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:14,582 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 62 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:14,582 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 246 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:14,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1636 states. [2022-01-18 14:07:14,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1636 to 1508. [2022-01-18 14:07:14,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1508 states, 1507 states have (on average 2.891838088918381) internal successors, (4358), 1507 states have internal predecessors, (4358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:14,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1508 states to 1508 states and 4358 transitions. [2022-01-18 14:07:14,596 INFO L78 Accepts]: Start accepts. Automaton has 1508 states and 4358 transitions. Word has length 26 [2022-01-18 14:07:14,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:14,597 INFO L470 AbstractCegarLoop]: Abstraction has 1508 states and 4358 transitions. [2022-01-18 14:07:14,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:14,597 INFO L276 IsEmpty]: Start isEmpty. Operand 1508 states and 4358 transitions. [2022-01-18 14:07:14,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:14,598 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:14,598 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:14,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2022-01-18 14:07:14,598 INFO L402 AbstractCegarLoop]: === Iteration 177 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:14,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:14,599 INFO L85 PathProgramCache]: Analyzing trace with hash -2142426417, now seen corresponding path program 175 times [2022-01-18 14:07:14,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:14,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133928225] [2022-01-18 14:07:14,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:14,599 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:14,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:14,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:14,655 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:14,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133928225] [2022-01-18 14:07:14,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133928225] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:14,655 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:14,655 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:14,656 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663170741] [2022-01-18 14:07:14,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:14,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:14,656 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:14,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:14,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:14,656 INFO L87 Difference]: Start difference. First operand 1508 states and 4358 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:14,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:14,868 INFO L93 Difference]: Finished difference Result 1766 states and 4965 transitions. [2022-01-18 14:07:14,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:14,868 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:14,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:14,870 INFO L225 Difference]: With dead ends: 1766 [2022-01-18 14:07:14,871 INFO L226 Difference]: Without dead ends: 1508 [2022-01-18 14:07:14,871 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:14,871 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 68 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 706 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:14,871 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 302 Invalid, 718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 706 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:14,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1508 states. [2022-01-18 14:07:14,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1508 to 1438. [2022-01-18 14:07:14,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1438 states, 1437 states have (on average 2.837160751565762) internal successors, (4077), 1437 states have internal predecessors, (4077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:14,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1438 states to 1438 states and 4077 transitions. [2022-01-18 14:07:14,885 INFO L78 Accepts]: Start accepts. Automaton has 1438 states and 4077 transitions. Word has length 26 [2022-01-18 14:07:14,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:14,885 INFO L470 AbstractCegarLoop]: Abstraction has 1438 states and 4077 transitions. [2022-01-18 14:07:14,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:14,885 INFO L276 IsEmpty]: Start isEmpty. Operand 1438 states and 4077 transitions. [2022-01-18 14:07:14,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:14,886 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:14,886 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:14,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2022-01-18 14:07:14,886 INFO L402 AbstractCegarLoop]: === Iteration 178 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:14,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:14,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1223058625, now seen corresponding path program 176 times [2022-01-18 14:07:14,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:14,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7963690] [2022-01-18 14:07:14,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:14,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:14,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:14,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:14,944 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:14,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7963690] [2022-01-18 14:07:14,944 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7963690] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:14,944 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:14,944 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:14,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41451880] [2022-01-18 14:07:14,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:14,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:14,945 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:14,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:14,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:14,945 INFO L87 Difference]: Start difference. First operand 1438 states and 4077 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:15,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:15,151 INFO L93 Difference]: Finished difference Result 1656 states and 4633 transitions. [2022-01-18 14:07:15,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:15,151 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:15,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:15,153 INFO L225 Difference]: With dead ends: 1656 [2022-01-18 14:07:15,153 INFO L226 Difference]: Without dead ends: 1505 [2022-01-18 14:07:15,153 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:15,153 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 56 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:15,153 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 280 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:15,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1505 states. [2022-01-18 14:07:15,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1505 to 1438. [2022-01-18 14:07:15,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1438 states, 1437 states have (on average 2.8288100208768268) internal successors, (4065), 1437 states have internal predecessors, (4065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:15,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1438 states to 1438 states and 4065 transitions. [2022-01-18 14:07:15,166 INFO L78 Accepts]: Start accepts. Automaton has 1438 states and 4065 transitions. Word has length 26 [2022-01-18 14:07:15,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:15,167 INFO L470 AbstractCegarLoop]: Abstraction has 1438 states and 4065 transitions. [2022-01-18 14:07:15,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:15,167 INFO L276 IsEmpty]: Start isEmpty. Operand 1438 states and 4065 transitions. [2022-01-18 14:07:15,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:15,168 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:15,168 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:15,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2022-01-18 14:07:15,168 INFO L402 AbstractCegarLoop]: === Iteration 179 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:15,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:15,168 INFO L85 PathProgramCache]: Analyzing trace with hash -577637823, now seen corresponding path program 177 times [2022-01-18 14:07:15,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:15,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446741762] [2022-01-18 14:07:15,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:15,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:15,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:15,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:15,233 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:15,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446741762] [2022-01-18 14:07:15,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446741762] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:15,234 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:15,234 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:15,234 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941183362] [2022-01-18 14:07:15,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:15,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:15,234 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:15,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:15,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:15,234 INFO L87 Difference]: Start difference. First operand 1438 states and 4065 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:15,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:15,450 INFO L93 Difference]: Finished difference Result 1661 states and 4643 transitions. [2022-01-18 14:07:15,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:15,450 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:15,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:15,452 INFO L225 Difference]: With dead ends: 1661 [2022-01-18 14:07:15,452 INFO L226 Difference]: Without dead ends: 1541 [2022-01-18 14:07:15,452 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:15,452 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 59 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 696 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:15,453 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 279 Invalid, 708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 696 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:15,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1541 states. [2022-01-18 14:07:15,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1541 to 1464. [2022-01-18 14:07:15,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1464 states, 1463 states have (on average 2.830485304169515) internal successors, (4141), 1463 states have internal predecessors, (4141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:15,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1464 states to 1464 states and 4141 transitions. [2022-01-18 14:07:15,466 INFO L78 Accepts]: Start accepts. Automaton has 1464 states and 4141 transitions. Word has length 26 [2022-01-18 14:07:15,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:15,466 INFO L470 AbstractCegarLoop]: Abstraction has 1464 states and 4141 transitions. [2022-01-18 14:07:15,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:15,466 INFO L276 IsEmpty]: Start isEmpty. Operand 1464 states and 4141 transitions. [2022-01-18 14:07:15,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:15,468 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:15,468 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:15,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2022-01-18 14:07:15,468 INFO L402 AbstractCegarLoop]: === Iteration 180 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:15,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:15,468 INFO L85 PathProgramCache]: Analyzing trace with hash -489701089, now seen corresponding path program 178 times [2022-01-18 14:07:15,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:15,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423040447] [2022-01-18 14:07:15,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:15,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:15,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:15,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:15,527 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:15,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423040447] [2022-01-18 14:07:15,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423040447] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:15,528 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:15,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:15,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927858156] [2022-01-18 14:07:15,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:15,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:15,528 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:15,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:15,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:15,528 INFO L87 Difference]: Start difference. First operand 1464 states and 4141 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:15,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:15,745 INFO L93 Difference]: Finished difference Result 1719 states and 4756 transitions. [2022-01-18 14:07:15,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:15,745 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:15,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:15,747 INFO L225 Difference]: With dead ends: 1719 [2022-01-18 14:07:15,747 INFO L226 Difference]: Without dead ends: 1599 [2022-01-18 14:07:15,747 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:15,747 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 57 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 673 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:15,748 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 276 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 673 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:15,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1599 states. [2022-01-18 14:07:15,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1599 to 1456. [2022-01-18 14:07:15,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1456 states, 1455 states have (on average 2.8316151202749142) internal successors, (4120), 1455 states have internal predecessors, (4120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:15,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1456 states to 1456 states and 4120 transitions. [2022-01-18 14:07:15,761 INFO L78 Accepts]: Start accepts. Automaton has 1456 states and 4120 transitions. Word has length 26 [2022-01-18 14:07:15,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:15,761 INFO L470 AbstractCegarLoop]: Abstraction has 1456 states and 4120 transitions. [2022-01-18 14:07:15,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:15,761 INFO L276 IsEmpty]: Start isEmpty. Operand 1456 states and 4120 transitions. [2022-01-18 14:07:15,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:15,763 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:15,763 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:15,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2022-01-18 14:07:15,763 INFO L402 AbstractCegarLoop]: === Iteration 181 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:15,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:15,763 INFO L85 PathProgramCache]: Analyzing trace with hash -335263571, now seen corresponding path program 179 times [2022-01-18 14:07:15,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:15,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819306151] [2022-01-18 14:07:15,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:15,763 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:15,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:15,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:15,821 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:15,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819306151] [2022-01-18 14:07:15,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819306151] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:15,821 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:15,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:15,821 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228669656] [2022-01-18 14:07:15,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:15,822 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:15,822 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:15,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:15,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:15,822 INFO L87 Difference]: Start difference. First operand 1456 states and 4120 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:16,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:16,043 INFO L93 Difference]: Finished difference Result 1748 states and 4846 transitions. [2022-01-18 14:07:16,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:16,044 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:16,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:16,046 INFO L225 Difference]: With dead ends: 1748 [2022-01-18 14:07:16,046 INFO L226 Difference]: Without dead ends: 1524 [2022-01-18 14:07:16,046 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:16,046 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 69 mSDsluCounter, 564 mSDsCounter, 0 mSdLazyCounter, 724 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:16,046 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 303 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 724 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:16,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1524 states. [2022-01-18 14:07:16,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1524 to 1396. [2022-01-18 14:07:16,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1396 states, 1395 states have (on average 2.8315412186379927) internal successors, (3950), 1395 states have internal predecessors, (3950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:16,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1396 states to 1396 states and 3950 transitions. [2022-01-18 14:07:16,059 INFO L78 Accepts]: Start accepts. Automaton has 1396 states and 3950 transitions. Word has length 26 [2022-01-18 14:07:16,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:16,060 INFO L470 AbstractCegarLoop]: Abstraction has 1396 states and 3950 transitions. [2022-01-18 14:07:16,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:16,060 INFO L276 IsEmpty]: Start isEmpty. Operand 1396 states and 3950 transitions. [2022-01-18 14:07:16,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:16,061 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:16,061 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:16,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2022-01-18 14:07:16,061 INFO L402 AbstractCegarLoop]: === Iteration 182 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:16,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:16,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1201044141, now seen corresponding path program 180 times [2022-01-18 14:07:16,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:16,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161192138] [2022-01-18 14:07:16,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:16,062 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:16,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:16,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:16,114 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:16,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161192138] [2022-01-18 14:07:16,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161192138] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:16,115 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:16,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:07:16,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025244103] [2022-01-18 14:07:16,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:16,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:07:16,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:16,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:07:16,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:16,115 INFO L87 Difference]: Start difference. First operand 1396 states and 3950 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:16,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:16,275 INFO L93 Difference]: Finished difference Result 1674 states and 4682 transitions. [2022-01-18 14:07:16,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:07:16,275 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:16,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:16,277 INFO L225 Difference]: With dead ends: 1674 [2022-01-18 14:07:16,278 INFO L226 Difference]: Without dead ends: 1589 [2022-01-18 14:07:16,278 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:16,278 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 46 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:16,278 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 222 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:16,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1589 states. [2022-01-18 14:07:16,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1589 to 1426. [2022-01-18 14:07:16,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1426 states, 1425 states have (on average 2.829473684210526) internal successors, (4032), 1425 states have internal predecessors, (4032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:16,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 4032 transitions. [2022-01-18 14:07:16,291 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 4032 transitions. Word has length 26 [2022-01-18 14:07:16,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:16,292 INFO L470 AbstractCegarLoop]: Abstraction has 1426 states and 4032 transitions. [2022-01-18 14:07:16,292 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:16,292 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 4032 transitions. [2022-01-18 14:07:16,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:16,293 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:16,293 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:16,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2022-01-18 14:07:16,293 INFO L402 AbstractCegarLoop]: === Iteration 183 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:16,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:16,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1157622229, now seen corresponding path program 181 times [2022-01-18 14:07:16,294 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:16,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766434947] [2022-01-18 14:07:16,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:16,294 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:16,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:16,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:16,352 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:16,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766434947] [2022-01-18 14:07:16,352 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766434947] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:16,352 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:16,352 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:16,352 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859029282] [2022-01-18 14:07:16,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:16,352 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:16,353 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:16,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:16,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:16,353 INFO L87 Difference]: Start difference. First operand 1426 states and 4032 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:16,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:16,565 INFO L93 Difference]: Finished difference Result 1703 states and 4751 transitions. [2022-01-18 14:07:16,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:16,565 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:16,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:16,567 INFO L225 Difference]: With dead ends: 1703 [2022-01-18 14:07:16,567 INFO L226 Difference]: Without dead ends: 1516 [2022-01-18 14:07:16,567 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:16,567 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 60 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 670 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:16,567 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 281 Invalid, 682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 670 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:16,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1516 states. [2022-01-18 14:07:16,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1516 to 1388. [2022-01-18 14:07:16,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1388 states, 1387 states have (on average 2.8197548666186014) internal successors, (3911), 1387 states have internal predecessors, (3911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:16,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 3911 transitions. [2022-01-18 14:07:16,580 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 3911 transitions. Word has length 26 [2022-01-18 14:07:16,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:16,581 INFO L470 AbstractCegarLoop]: Abstraction has 1388 states and 3911 transitions. [2022-01-18 14:07:16,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:16,581 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 3911 transitions. [2022-01-18 14:07:16,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:16,582 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:16,582 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:16,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2022-01-18 14:07:16,582 INFO L402 AbstractCegarLoop]: === Iteration 184 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:16,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:16,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1376182385, now seen corresponding path program 182 times [2022-01-18 14:07:16,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:16,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350761220] [2022-01-18 14:07:16,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:16,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:16,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:16,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:16,646 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:16,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350761220] [2022-01-18 14:07:16,646 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350761220] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:16,646 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:16,646 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:16,647 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643566664] [2022-01-18 14:07:16,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:16,647 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:16,647 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:16,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:16,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:16,647 INFO L87 Difference]: Start difference. First operand 1388 states and 3911 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:16,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:16,847 INFO L93 Difference]: Finished difference Result 1583 states and 4394 transitions. [2022-01-18 14:07:16,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:16,847 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:16,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:16,849 INFO L225 Difference]: With dead ends: 1583 [2022-01-18 14:07:16,849 INFO L226 Difference]: Without dead ends: 1498 [2022-01-18 14:07:16,849 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:16,849 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 48 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 644 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:16,849 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 258 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 644 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:16,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1498 states. [2022-01-18 14:07:16,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1498 to 1378. [2022-01-18 14:07:16,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1378 states, 1377 states have (on average 2.8249818445896877) internal successors, (3890), 1377 states have internal predecessors, (3890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:16,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1378 states to 1378 states and 3890 transitions. [2022-01-18 14:07:16,863 INFO L78 Accepts]: Start accepts. Automaton has 1378 states and 3890 transitions. Word has length 26 [2022-01-18 14:07:16,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:16,863 INFO L470 AbstractCegarLoop]: Abstraction has 1378 states and 3890 transitions. [2022-01-18 14:07:16,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:16,863 INFO L276 IsEmpty]: Start isEmpty. Operand 1378 states and 3890 transitions. [2022-01-18 14:07:16,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:16,865 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:16,865 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:16,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2022-01-18 14:07:16,865 INFO L402 AbstractCegarLoop]: === Iteration 185 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:16,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:16,865 INFO L85 PathProgramCache]: Analyzing trace with hash -560118541, now seen corresponding path program 183 times [2022-01-18 14:07:16,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:16,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373934526] [2022-01-18 14:07:16,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:16,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:16,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:16,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:16,923 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:16,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373934526] [2022-01-18 14:07:16,924 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373934526] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:16,924 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:16,924 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:16,924 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727613751] [2022-01-18 14:07:16,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:16,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:16,924 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:16,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:16,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:16,924 INFO L87 Difference]: Start difference. First operand 1378 states and 3890 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:17,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:17,151 INFO L93 Difference]: Finished difference Result 1537 states and 4286 transitions. [2022-01-18 14:07:17,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:17,151 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:17,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:17,153 INFO L225 Difference]: With dead ends: 1537 [2022-01-18 14:07:17,153 INFO L226 Difference]: Without dead ends: 1442 [2022-01-18 14:07:17,153 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:17,153 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 53 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 705 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:17,154 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 253 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 705 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:17,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1442 states. [2022-01-18 14:07:17,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1442 to 1390. [2022-01-18 14:07:17,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1390 states, 1389 states have (on average 2.8192944564434845) internal successors, (3916), 1389 states have internal predecessors, (3916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:17,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1390 states to 1390 states and 3916 transitions. [2022-01-18 14:07:17,167 INFO L78 Accepts]: Start accepts. Automaton has 1390 states and 3916 transitions. Word has length 26 [2022-01-18 14:07:17,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:17,167 INFO L470 AbstractCegarLoop]: Abstraction has 1390 states and 3916 transitions. [2022-01-18 14:07:17,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:17,167 INFO L276 IsEmpty]: Start isEmpty. Operand 1390 states and 3916 transitions. [2022-01-18 14:07:17,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:17,169 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:17,169 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:17,169 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2022-01-18 14:07:17,169 INFO L402 AbstractCegarLoop]: === Iteration 186 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:17,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:17,169 INFO L85 PathProgramCache]: Analyzing trace with hash 1786937049, now seen corresponding path program 184 times [2022-01-18 14:07:17,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:17,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364266349] [2022-01-18 14:07:17,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:17,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:17,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:17,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:17,239 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:17,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364266349] [2022-01-18 14:07:17,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364266349] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:17,239 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:17,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:07:17,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923104307] [2022-01-18 14:07:17,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:17,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:07:17,239 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:17,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:07:17,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:17,239 INFO L87 Difference]: Start difference. First operand 1390 states and 3916 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:17,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:17,399 INFO L93 Difference]: Finished difference Result 1645 states and 4600 transitions. [2022-01-18 14:07:17,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:07:17,399 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:17,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:17,401 INFO L225 Difference]: With dead ends: 1645 [2022-01-18 14:07:17,401 INFO L226 Difference]: Without dead ends: 1562 [2022-01-18 14:07:17,401 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:17,401 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 44 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:17,402 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 204 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:17,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1562 states. [2022-01-18 14:07:17,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1562 to 1396. [2022-01-18 14:07:17,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1396 states, 1395 states have (on average 2.813620071684588) internal successors, (3925), 1395 states have internal predecessors, (3925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:17,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1396 states to 1396 states and 3925 transitions. [2022-01-18 14:07:17,415 INFO L78 Accepts]: Start accepts. Automaton has 1396 states and 3925 transitions. Word has length 26 [2022-01-18 14:07:17,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:17,415 INFO L470 AbstractCegarLoop]: Abstraction has 1396 states and 3925 transitions. [2022-01-18 14:07:17,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:17,415 INFO L276 IsEmpty]: Start isEmpty. Operand 1396 states and 3925 transitions. [2022-01-18 14:07:17,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:17,416 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:17,416 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:17,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2022-01-18 14:07:17,416 INFO L402 AbstractCegarLoop]: === Iteration 187 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:17,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:17,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1862609445, now seen corresponding path program 185 times [2022-01-18 14:07:17,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:17,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121084969] [2022-01-18 14:07:17,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:17,417 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:17,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:17,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:17,477 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:17,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121084969] [2022-01-18 14:07:17,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121084969] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:17,477 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:17,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:17,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318080236] [2022-01-18 14:07:17,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:17,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:17,478 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:17,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:17,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:17,478 INFO L87 Difference]: Start difference. First operand 1396 states and 3925 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:17,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:17,705 INFO L93 Difference]: Finished difference Result 1543 states and 4300 transitions. [2022-01-18 14:07:17,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:17,706 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:17,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:17,708 INFO L225 Difference]: With dead ends: 1543 [2022-01-18 14:07:17,708 INFO L226 Difference]: Without dead ends: 1455 [2022-01-18 14:07:17,708 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:17,708 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 53 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 707 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:17,708 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 251 Invalid, 715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 707 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:17,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1455 states. [2022-01-18 14:07:17,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1455 to 1392. [2022-01-18 14:07:17,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1392 states, 1391 states have (on average 2.8173975557153126) internal successors, (3919), 1391 states have internal predecessors, (3919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:17,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 3919 transitions. [2022-01-18 14:07:17,722 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 3919 transitions. Word has length 26 [2022-01-18 14:07:17,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:17,722 INFO L470 AbstractCegarLoop]: Abstraction has 1392 states and 3919 transitions. [2022-01-18 14:07:17,722 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:17,722 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 3919 transitions. [2022-01-18 14:07:17,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:17,723 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:17,723 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:17,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2022-01-18 14:07:17,723 INFO L402 AbstractCegarLoop]: === Iteration 188 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:17,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:17,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1774672711, now seen corresponding path program 186 times [2022-01-18 14:07:17,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:17,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828182177] [2022-01-18 14:07:17,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:17,724 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:17,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:17,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:17,782 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:17,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828182177] [2022-01-18 14:07:17,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828182177] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:17,782 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:17,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:17,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415386809] [2022-01-18 14:07:17,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:17,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:17,782 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:17,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:17,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:17,783 INFO L87 Difference]: Start difference. First operand 1392 states and 3919 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:17,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:17,981 INFO L93 Difference]: Finished difference Result 1684 states and 4690 transitions. [2022-01-18 14:07:17,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:17,982 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:17,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:17,984 INFO L225 Difference]: With dead ends: 1684 [2022-01-18 14:07:17,984 INFO L226 Difference]: Without dead ends: 1596 [2022-01-18 14:07:17,984 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:17,984 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 50 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 635 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:17,984 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 254 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 635 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:17,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1596 states. [2022-01-18 14:07:17,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1596 to 1416. [2022-01-18 14:07:17,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1416 states, 1415 states have (on average 2.8197879858657244) internal successors, (3990), 1415 states have internal predecessors, (3990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:17,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1416 states to 1416 states and 3990 transitions. [2022-01-18 14:07:17,998 INFO L78 Accepts]: Start accepts. Automaton has 1416 states and 3990 transitions. Word has length 26 [2022-01-18 14:07:17,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:17,998 INFO L470 AbstractCegarLoop]: Abstraction has 1416 states and 3990 transitions. [2022-01-18 14:07:17,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:17,998 INFO L276 IsEmpty]: Start isEmpty. Operand 1416 states and 3990 transitions. [2022-01-18 14:07:17,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:17,999 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:17,999 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:17,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2022-01-18 14:07:18,000 INFO L402 AbstractCegarLoop]: === Iteration 189 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:18,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:18,000 INFO L85 PathProgramCache]: Analyzing trace with hash 757057999, now seen corresponding path program 187 times [2022-01-18 14:07:18,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:18,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426186189] [2022-01-18 14:07:18,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:18,000 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:18,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:18,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:18,067 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:18,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426186189] [2022-01-18 14:07:18,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426186189] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:18,067 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:18,067 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:07:18,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215526942] [2022-01-18 14:07:18,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:18,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:07:18,068 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:18,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:07:18,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:18,068 INFO L87 Difference]: Start difference. First operand 1416 states and 3990 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:18,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:18,252 INFO L93 Difference]: Finished difference Result 1704 states and 4749 transitions. [2022-01-18 14:07:18,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:07:18,252 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:18,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:18,254 INFO L225 Difference]: With dead ends: 1704 [2022-01-18 14:07:18,254 INFO L226 Difference]: Without dead ends: 1544 [2022-01-18 14:07:18,254 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:18,254 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 56 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 558 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:18,254 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 224 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 558 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:18,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1544 states. [2022-01-18 14:07:18,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1544 to 1404. [2022-01-18 14:07:18,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1404 states, 1403 states have (on average 2.819672131147541) internal successors, (3956), 1403 states have internal predecessors, (3956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:18,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 3956 transitions. [2022-01-18 14:07:18,268 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 3956 transitions. Word has length 26 [2022-01-18 14:07:18,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:18,268 INFO L470 AbstractCegarLoop]: Abstraction has 1404 states and 3956 transitions. [2022-01-18 14:07:18,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:18,268 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 3956 transitions. [2022-01-18 14:07:18,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:18,269 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:18,269 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:18,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2022-01-18 14:07:18,269 INFO L402 AbstractCegarLoop]: === Iteration 190 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:18,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:18,270 INFO L85 PathProgramCache]: Analyzing trace with hash -822373647, now seen corresponding path program 188 times [2022-01-18 14:07:18,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:18,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252725546] [2022-01-18 14:07:18,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:18,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:18,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:18,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:18,336 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:18,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252725546] [2022-01-18 14:07:18,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252725546] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:18,337 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:18,337 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:18,337 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574621832] [2022-01-18 14:07:18,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:18,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:18,337 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:18,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:18,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:18,337 INFO L87 Difference]: Start difference. First operand 1404 states and 3956 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:18,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:18,569 INFO L93 Difference]: Finished difference Result 1611 states and 4453 transitions. [2022-01-18 14:07:18,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:18,570 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:18,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:18,572 INFO L225 Difference]: With dead ends: 1611 [2022-01-18 14:07:18,572 INFO L226 Difference]: Without dead ends: 1492 [2022-01-18 14:07:18,572 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:18,572 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 62 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 716 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:18,572 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 277 Invalid, 726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 716 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:18,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1492 states. [2022-01-18 14:07:18,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1492 to 1394. [2022-01-18 14:07:18,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1394 states, 1393 states have (on average 2.8241206030150754) internal successors, (3934), 1393 states have internal predecessors, (3934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:18,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 3934 transitions. [2022-01-18 14:07:18,585 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 3934 transitions. Word has length 26 [2022-01-18 14:07:18,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:18,585 INFO L470 AbstractCegarLoop]: Abstraction has 1394 states and 3934 transitions. [2022-01-18 14:07:18,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:18,585 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 3934 transitions. [2022-01-18 14:07:18,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:18,587 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:18,587 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:18,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2022-01-18 14:07:18,587 INFO L402 AbstractCegarLoop]: === Iteration 191 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:18,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:18,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1651145999, now seen corresponding path program 189 times [2022-01-18 14:07:18,587 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:18,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613247202] [2022-01-18 14:07:18,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:18,587 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:18,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:18,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:18,646 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:18,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613247202] [2022-01-18 14:07:18,647 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613247202] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:18,647 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:18,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:18,647 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623143908] [2022-01-18 14:07:18,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:18,647 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:18,647 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:18,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:18,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:18,647 INFO L87 Difference]: Start difference. First operand 1394 states and 3934 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:18,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:18,845 INFO L93 Difference]: Finished difference Result 1557 states and 4341 transitions. [2022-01-18 14:07:18,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:18,845 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:18,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:18,847 INFO L225 Difference]: With dead ends: 1557 [2022-01-18 14:07:18,847 INFO L226 Difference]: Without dead ends: 1472 [2022-01-18 14:07:18,847 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:18,847 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 43 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 649 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:18,847 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 231 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 649 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:18,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1472 states. [2022-01-18 14:07:18,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1472 to 1396. [2022-01-18 14:07:18,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1396 states, 1395 states have (on average 2.825806451612903) internal successors, (3942), 1395 states have internal predecessors, (3942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:18,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1396 states to 1396 states and 3942 transitions. [2022-01-18 14:07:18,860 INFO L78 Accepts]: Start accepts. Automaton has 1396 states and 3942 transitions. Word has length 26 [2022-01-18 14:07:18,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:18,860 INFO L470 AbstractCegarLoop]: Abstraction has 1396 states and 3942 transitions. [2022-01-18 14:07:18,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:18,860 INFO L276 IsEmpty]: Start isEmpty. Operand 1396 states and 3942 transitions. [2022-01-18 14:07:18,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:18,862 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:18,862 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:18,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2022-01-18 14:07:18,862 INFO L402 AbstractCegarLoop]: === Iteration 192 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:18,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:18,862 INFO L85 PathProgramCache]: Analyzing trace with hash -285154927, now seen corresponding path program 190 times [2022-01-18 14:07:18,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:18,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085224591] [2022-01-18 14:07:18,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:18,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:18,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:18,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:18,922 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:18,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085224591] [2022-01-18 14:07:18,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085224591] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:18,923 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:18,923 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:18,923 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90373529] [2022-01-18 14:07:18,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:18,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:18,923 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:18,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:18,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:18,923 INFO L87 Difference]: Start difference. First operand 1396 states and 3942 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:19,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:19,142 INFO L93 Difference]: Finished difference Result 1544 states and 4317 transitions. [2022-01-18 14:07:19,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:19,142 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:19,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:19,144 INFO L225 Difference]: With dead ends: 1544 [2022-01-18 14:07:19,144 INFO L226 Difference]: Without dead ends: 1449 [2022-01-18 14:07:19,144 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:19,144 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 48 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 706 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:19,144 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 228 Invalid, 714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 706 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:19,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1449 states. [2022-01-18 14:07:19,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1449 to 1400. [2022-01-18 14:07:19,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1400 states, 1399 states have (on average 2.827019299499643) internal successors, (3955), 1399 states have internal predecessors, (3955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:19,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1400 states to 1400 states and 3955 transitions. [2022-01-18 14:07:19,158 INFO L78 Accepts]: Start accepts. Automaton has 1400 states and 3955 transitions. Word has length 26 [2022-01-18 14:07:19,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:19,158 INFO L470 AbstractCegarLoop]: Abstraction has 1400 states and 3955 transitions. [2022-01-18 14:07:19,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:19,158 INFO L276 IsEmpty]: Start isEmpty. Operand 1400 states and 3955 transitions. [2022-01-18 14:07:19,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:19,160 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:19,160 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:19,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2022-01-18 14:07:19,160 INFO L402 AbstractCegarLoop]: === Iteration 193 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:19,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:19,160 INFO L85 PathProgramCache]: Analyzing trace with hash 82217457, now seen corresponding path program 191 times [2022-01-18 14:07:19,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:19,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114849050] [2022-01-18 14:07:19,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:19,160 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:19,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:19,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:19,235 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:19,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114849050] [2022-01-18 14:07:19,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114849050] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:19,235 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:19,235 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:19,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418379420] [2022-01-18 14:07:19,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:19,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:19,236 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:19,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:19,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:19,236 INFO L87 Difference]: Start difference. First operand 1400 states and 3955 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:19,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:19,437 INFO L93 Difference]: Finished difference Result 1551 states and 4333 transitions. [2022-01-18 14:07:19,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:19,437 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:19,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:19,439 INFO L225 Difference]: With dead ends: 1551 [2022-01-18 14:07:19,439 INFO L226 Difference]: Without dead ends: 1466 [2022-01-18 14:07:19,439 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:19,439 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 42 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 637 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:19,440 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 233 Invalid, 649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 637 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:19,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1466 states. [2022-01-18 14:07:19,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1466 to 1398. [2022-01-18 14:07:19,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1398 states, 1397 states have (on average 2.82605583392985) internal successors, (3948), 1397 states have internal predecessors, (3948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:19,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1398 states to 1398 states and 3948 transitions. [2022-01-18 14:07:19,453 INFO L78 Accepts]: Start accepts. Automaton has 1398 states and 3948 transitions. Word has length 26 [2022-01-18 14:07:19,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:19,453 INFO L470 AbstractCegarLoop]: Abstraction has 1398 states and 3948 transitions. [2022-01-18 14:07:19,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:19,453 INFO L276 IsEmpty]: Start isEmpty. Operand 1398 states and 3948 transitions. [2022-01-18 14:07:19,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:19,454 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:19,454 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:19,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2022-01-18 14:07:19,454 INFO L402 AbstractCegarLoop]: === Iteration 194 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:19,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:19,454 INFO L85 PathProgramCache]: Analyzing trace with hash 2061900663, now seen corresponding path program 192 times [2022-01-18 14:07:19,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:19,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434275147] [2022-01-18 14:07:19,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:19,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:19,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:19,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:19,530 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:19,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434275147] [2022-01-18 14:07:19,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434275147] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:19,530 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:19,530 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:19,530 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335398639] [2022-01-18 14:07:19,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:19,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:19,531 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:19,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:19,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:19,531 INFO L87 Difference]: Start difference. First operand 1398 states and 3948 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:19,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:19,742 INFO L93 Difference]: Finished difference Result 1561 states and 4348 transitions. [2022-01-18 14:07:19,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:19,742 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:19,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:19,744 INFO L225 Difference]: With dead ends: 1561 [2022-01-18 14:07:19,744 INFO L226 Difference]: Without dead ends: 1478 [2022-01-18 14:07:19,744 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:19,744 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 44 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 658 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:19,744 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 231 Invalid, 668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 658 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:19,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1478 states. [2022-01-18 14:07:19,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1478 to 1398. [2022-01-18 14:07:19,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1398 states, 1397 states have (on average 2.8246241947029347) internal successors, (3946), 1397 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:19,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1398 states to 1398 states and 3946 transitions. [2022-01-18 14:07:19,758 INFO L78 Accepts]: Start accepts. Automaton has 1398 states and 3946 transitions. Word has length 26 [2022-01-18 14:07:19,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:19,758 INFO L470 AbstractCegarLoop]: Abstraction has 1398 states and 3946 transitions. [2022-01-18 14:07:19,758 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:19,758 INFO L276 IsEmpty]: Start isEmpty. Operand 1398 states and 3946 transitions. [2022-01-18 14:07:19,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:19,759 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:19,759 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:19,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2022-01-18 14:07:19,759 INFO L402 AbstractCegarLoop]: === Iteration 195 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:19,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:19,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1587645831, now seen corresponding path program 193 times [2022-01-18 14:07:19,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:19,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395361932] [2022-01-18 14:07:19,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:19,760 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:19,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:19,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:19,818 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:19,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395361932] [2022-01-18 14:07:19,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395361932] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:19,819 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:19,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:19,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285032674] [2022-01-18 14:07:19,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:19,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:19,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:19,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:19,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:19,819 INFO L87 Difference]: Start difference. First operand 1398 states and 3946 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:20,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:20,038 INFO L93 Difference]: Finished difference Result 1541 states and 4312 transitions. [2022-01-18 14:07:20,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:20,038 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:20,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:20,040 INFO L225 Difference]: With dead ends: 1541 [2022-01-18 14:07:20,040 INFO L226 Difference]: Without dead ends: 1453 [2022-01-18 14:07:20,040 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:20,040 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 48 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 708 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:20,040 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 226 Invalid, 716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 708 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:20,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1453 states. [2022-01-18 14:07:20,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1453 to 1399. [2022-01-18 14:07:20,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1399 states, 1398 states have (on average 2.8254649499284694) internal successors, (3950), 1398 states have internal predecessors, (3950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:20,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1399 states to 1399 states and 3950 transitions. [2022-01-18 14:07:20,054 INFO L78 Accepts]: Start accepts. Automaton has 1399 states and 3950 transitions. Word has length 26 [2022-01-18 14:07:20,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:20,054 INFO L470 AbstractCegarLoop]: Abstraction has 1399 states and 3950 transitions. [2022-01-18 14:07:20,054 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:20,054 INFO L276 IsEmpty]: Start isEmpty. Operand 1399 states and 3950 transitions. [2022-01-18 14:07:20,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:20,055 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:20,055 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:20,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2022-01-18 14:07:20,055 INFO L402 AbstractCegarLoop]: === Iteration 196 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:20,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:20,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1499709097, now seen corresponding path program 194 times [2022-01-18 14:07:20,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:20,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117804717] [2022-01-18 14:07:20,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:20,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:20,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:20,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:20,118 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:20,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117804717] [2022-01-18 14:07:20,118 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117804717] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:20,118 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:20,118 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:20,118 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443229984] [2022-01-18 14:07:20,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:20,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:20,118 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:20,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:20,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:20,119 INFO L87 Difference]: Start difference. First operand 1399 states and 3950 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:20,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:20,324 INFO L93 Difference]: Finished difference Result 1549 states and 4315 transitions. [2022-01-18 14:07:20,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:20,324 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:20,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:20,326 INFO L225 Difference]: With dead ends: 1549 [2022-01-18 14:07:20,326 INFO L226 Difference]: Without dead ends: 1461 [2022-01-18 14:07:20,326 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:20,326 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 45 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 672 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:20,326 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 227 Invalid, 680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 672 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:20,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1461 states. [2022-01-18 14:07:20,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1461 to 1400. [2022-01-18 14:07:20,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1400 states, 1399 states have (on average 2.827019299499643) internal successors, (3955), 1399 states have internal predecessors, (3955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:20,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1400 states to 1400 states and 3955 transitions. [2022-01-18 14:07:20,340 INFO L78 Accepts]: Start accepts. Automaton has 1400 states and 3955 transitions. Word has length 26 [2022-01-18 14:07:20,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:20,340 INFO L470 AbstractCegarLoop]: Abstraction has 1400 states and 3955 transitions. [2022-01-18 14:07:20,340 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:20,340 INFO L276 IsEmpty]: Start isEmpty. Operand 1400 states and 3955 transitions. [2022-01-18 14:07:20,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:20,342 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:20,342 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:20,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2022-01-18 14:07:20,342 INFO L402 AbstractCegarLoop]: === Iteration 197 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:20,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:20,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1444338033, now seen corresponding path program 195 times [2022-01-18 14:07:20,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:20,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91131166] [2022-01-18 14:07:20,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:20,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:20,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:20,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:20,403 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:20,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91131166] [2022-01-18 14:07:20,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91131166] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:20,403 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:20,403 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:20,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177209686] [2022-01-18 14:07:20,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:20,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:20,403 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:20,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:20,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:20,404 INFO L87 Difference]: Start difference. First operand 1400 states and 3955 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:20,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:20,613 INFO L93 Difference]: Finished difference Result 1607 states and 4488 transitions. [2022-01-18 14:07:20,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:20,613 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:20,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:20,615 INFO L225 Difference]: With dead ends: 1607 [2022-01-18 14:07:20,615 INFO L226 Difference]: Without dead ends: 1522 [2022-01-18 14:07:20,615 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:20,615 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 44 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:20,616 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 235 Invalid, 663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 651 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:20,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1522 states. [2022-01-18 14:07:20,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1522 to 1400. [2022-01-18 14:07:20,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1400 states, 1399 states have (on average 2.827019299499643) internal successors, (3955), 1399 states have internal predecessors, (3955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:20,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1400 states to 1400 states and 3955 transitions. [2022-01-18 14:07:20,629 INFO L78 Accepts]: Start accepts. Automaton has 1400 states and 3955 transitions. Word has length 26 [2022-01-18 14:07:20,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:20,629 INFO L470 AbstractCegarLoop]: Abstraction has 1400 states and 3955 transitions. [2022-01-18 14:07:20,629 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:20,629 INFO L276 IsEmpty]: Start isEmpty. Operand 1400 states and 3955 transitions. [2022-01-18 14:07:20,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:20,631 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:20,631 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:20,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2022-01-18 14:07:20,631 INFO L402 AbstractCegarLoop]: === Iteration 198 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:20,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:20,631 INFO L85 PathProgramCache]: Analyzing trace with hash -491962893, now seen corresponding path program 196 times [2022-01-18 14:07:20,631 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:20,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515380798] [2022-01-18 14:07:20,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:20,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:20,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:20,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:20,690 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:20,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515380798] [2022-01-18 14:07:20,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515380798] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:20,690 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:20,691 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:20,691 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887105766] [2022-01-18 14:07:20,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:20,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:20,691 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:20,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:20,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:20,691 INFO L87 Difference]: Start difference. First operand 1400 states and 3955 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:20,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:20,909 INFO L93 Difference]: Finished difference Result 1617 states and 4532 transitions. [2022-01-18 14:07:20,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:20,910 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:20,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:20,912 INFO L225 Difference]: With dead ends: 1617 [2022-01-18 14:07:20,912 INFO L226 Difference]: Without dead ends: 1522 [2022-01-18 14:07:20,912 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:20,912 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 49 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 708 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:20,912 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 232 Invalid, 718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 708 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:20,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1522 states. [2022-01-18 14:07:20,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1522 to 1407. [2022-01-18 14:07:20,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1407 states, 1406 states have (on average 2.8250355618776672) internal successors, (3972), 1406 states have internal predecessors, (3972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:20,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1407 states to 1407 states and 3972 transitions. [2022-01-18 14:07:20,926 INFO L78 Accepts]: Start accepts. Automaton has 1407 states and 3972 transitions. Word has length 26 [2022-01-18 14:07:20,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:20,926 INFO L470 AbstractCegarLoop]: Abstraction has 1407 states and 3972 transitions. [2022-01-18 14:07:20,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:20,926 INFO L276 IsEmpty]: Start isEmpty. Operand 1407 states and 3972 transitions. [2022-01-18 14:07:20,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:20,927 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:20,927 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:20,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2022-01-18 14:07:20,927 INFO L402 AbstractCegarLoop]: === Iteration 199 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:20,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:20,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1817274959, now seen corresponding path program 197 times [2022-01-18 14:07:20,928 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:20,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628048043] [2022-01-18 14:07:20,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:20,928 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:20,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:20,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:20,987 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:20,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628048043] [2022-01-18 14:07:20,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628048043] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:20,988 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:20,988 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:20,988 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848410256] [2022-01-18 14:07:20,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:20,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:20,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:20,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:20,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:20,988 INFO L87 Difference]: Start difference. First operand 1407 states and 3972 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:21,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:21,210 INFO L93 Difference]: Finished difference Result 1602 states and 4492 transitions. [2022-01-18 14:07:21,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:21,210 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:21,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:21,212 INFO L225 Difference]: With dead ends: 1602 [2022-01-18 14:07:21,212 INFO L226 Difference]: Without dead ends: 1502 [2022-01-18 14:07:21,212 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:21,212 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 51 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 719 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:21,212 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 233 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 719 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:21,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1502 states. [2022-01-18 14:07:21,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1502 to 1405. [2022-01-18 14:07:21,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1405 states, 1404 states have (on average 2.826923076923077) internal successors, (3969), 1404 states have internal predecessors, (3969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:21,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1405 states to 1405 states and 3969 transitions. [2022-01-18 14:07:21,226 INFO L78 Accepts]: Start accepts. Automaton has 1405 states and 3969 transitions. Word has length 26 [2022-01-18 14:07:21,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:21,226 INFO L470 AbstractCegarLoop]: Abstraction has 1405 states and 3969 transitions. [2022-01-18 14:07:21,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:21,227 INFO L276 IsEmpty]: Start isEmpty. Operand 1405 states and 3969 transitions. [2022-01-18 14:07:21,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:21,228 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:21,228 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:21,228 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2022-01-18 14:07:21,228 INFO L402 AbstractCegarLoop]: === Iteration 200 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:21,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:21,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1969715623, now seen corresponding path program 198 times [2022-01-18 14:07:21,228 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:21,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726153949] [2022-01-18 14:07:21,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:21,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:21,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:21,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:21,295 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:21,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726153949] [2022-01-18 14:07:21,295 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726153949] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:21,295 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:21,295 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:07:21,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025897080] [2022-01-18 14:07:21,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:21,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:07:21,296 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:21,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:07:21,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:21,296 INFO L87 Difference]: Start difference. First operand 1405 states and 3969 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:21,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:21,459 INFO L93 Difference]: Finished difference Result 1611 states and 4507 transitions. [2022-01-18 14:07:21,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:07:21,459 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:21,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:21,461 INFO L225 Difference]: With dead ends: 1611 [2022-01-18 14:07:21,461 INFO L226 Difference]: Without dead ends: 1524 [2022-01-18 14:07:21,461 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:21,462 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 44 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:21,462 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 198 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:21,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1524 states. [2022-01-18 14:07:21,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1524 to 1406. [2022-01-18 14:07:21,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1406 states, 1405 states have (on average 2.8270462633451956) internal successors, (3972), 1405 states have internal predecessors, (3972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:21,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1406 states to 1406 states and 3972 transitions. [2022-01-18 14:07:21,475 INFO L78 Accepts]: Start accepts. Automaton has 1406 states and 3972 transitions. Word has length 26 [2022-01-18 14:07:21,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:21,475 INFO L470 AbstractCegarLoop]: Abstraction has 1406 states and 3972 transitions. [2022-01-18 14:07:21,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:21,475 INFO L276 IsEmpty]: Start isEmpty. Operand 1406 states and 3972 transitions. [2022-01-18 14:07:21,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:21,477 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:21,477 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:21,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2022-01-18 14:07:21,477 INFO L402 AbstractCegarLoop]: === Iteration 201 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:21,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:21,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1643998427, now seen corresponding path program 199 times [2022-01-18 14:07:21,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:21,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949770105] [2022-01-18 14:07:21,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:21,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:21,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:21,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:21,543 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:21,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949770105] [2022-01-18 14:07:21,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949770105] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:21,543 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:21,543 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:21,543 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795919947] [2022-01-18 14:07:21,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:21,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:21,543 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:21,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:21,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:21,544 INFO L87 Difference]: Start difference. First operand 1406 states and 3972 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:21,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:21,770 INFO L93 Difference]: Finished difference Result 1550 states and 4346 transitions. [2022-01-18 14:07:21,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:21,770 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:21,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:21,772 INFO L225 Difference]: With dead ends: 1550 [2022-01-18 14:07:21,772 INFO L226 Difference]: Without dead ends: 1462 [2022-01-18 14:07:21,772 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:21,773 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 49 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:21,773 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 228 Invalid, 722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 714 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:21,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1462 states. [2022-01-18 14:07:21,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1462 to 1408. [2022-01-18 14:07:21,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1408 states, 1407 states have (on average 2.8280028429282162) internal successors, (3979), 1407 states have internal predecessors, (3979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:21,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1408 states to 1408 states and 3979 transitions. [2022-01-18 14:07:21,786 INFO L78 Accepts]: Start accepts. Automaton has 1408 states and 3979 transitions. Word has length 26 [2022-01-18 14:07:21,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:21,786 INFO L470 AbstractCegarLoop]: Abstraction has 1408 states and 3979 transitions. [2022-01-18 14:07:21,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:21,786 INFO L276 IsEmpty]: Start isEmpty. Operand 1408 states and 3979 transitions. [2022-01-18 14:07:21,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:21,787 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:21,787 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:21,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2022-01-18 14:07:21,787 INFO L402 AbstractCegarLoop]: === Iteration 202 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:21,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:21,788 INFO L85 PathProgramCache]: Analyzing trace with hash 1731935161, now seen corresponding path program 200 times [2022-01-18 14:07:21,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:21,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579562224] [2022-01-18 14:07:21,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:21,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:21,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:21,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:21,856 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:21,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579562224] [2022-01-18 14:07:21,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579562224] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:21,856 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:21,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:21,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369505295] [2022-01-18 14:07:21,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:21,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:21,856 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:21,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:21,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:21,857 INFO L87 Difference]: Start difference. First operand 1408 states and 3979 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:22,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:22,067 INFO L93 Difference]: Finished difference Result 1554 states and 4338 transitions. [2022-01-18 14:07:22,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:22,067 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:22,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:22,069 INFO L225 Difference]: With dead ends: 1554 [2022-01-18 14:07:22,069 INFO L226 Difference]: Without dead ends: 1468 [2022-01-18 14:07:22,070 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:22,070 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 46 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:22,070 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 229 Invalid, 686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:22,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1468 states. [2022-01-18 14:07:22,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1468 to 1407. [2022-01-18 14:07:22,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1407 states, 1406 states have (on average 2.8250355618776672) internal successors, (3972), 1406 states have internal predecessors, (3972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:22,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1407 states to 1407 states and 3972 transitions. [2022-01-18 14:07:22,083 INFO L78 Accepts]: Start accepts. Automaton has 1407 states and 3972 transitions. Word has length 26 [2022-01-18 14:07:22,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:22,083 INFO L470 AbstractCegarLoop]: Abstraction has 1407 states and 3972 transitions. [2022-01-18 14:07:22,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:22,083 INFO L276 IsEmpty]: Start isEmpty. Operand 1407 states and 3972 transitions. [2022-01-18 14:07:22,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:22,084 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:22,084 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:22,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2022-01-18 14:07:22,085 INFO L402 AbstractCegarLoop]: === Iteration 203 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:22,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:22,085 INFO L85 PathProgramCache]: Analyzing trace with hash 251853881, now seen corresponding path program 201 times [2022-01-18 14:07:22,085 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:22,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120527998] [2022-01-18 14:07:22,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:22,085 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:22,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:22,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:22,153 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:22,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120527998] [2022-01-18 14:07:22,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120527998] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:22,153 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:22,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:22,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665164845] [2022-01-18 14:07:22,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:22,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:22,153 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:22,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:22,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:22,154 INFO L87 Difference]: Start difference. First operand 1407 states and 3972 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:22,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:22,376 INFO L93 Difference]: Finished difference Result 1620 states and 4536 transitions. [2022-01-18 14:07:22,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:22,377 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:22,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:22,379 INFO L225 Difference]: With dead ends: 1620 [2022-01-18 14:07:22,379 INFO L226 Difference]: Without dead ends: 1523 [2022-01-18 14:07:22,379 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:22,379 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 51 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 723 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:22,379 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 231 Invalid, 733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 723 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:22,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1523 states. [2022-01-18 14:07:22,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1523 to 1419. [2022-01-18 14:07:22,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1419 states, 1418 states have (on average 2.821579689703808) internal successors, (4001), 1418 states have internal predecessors, (4001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:22,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1419 states to 1419 states and 4001 transitions. [2022-01-18 14:07:22,392 INFO L78 Accepts]: Start accepts. Automaton has 1419 states and 4001 transitions. Word has length 26 [2022-01-18 14:07:22,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:22,393 INFO L470 AbstractCegarLoop]: Abstraction has 1419 states and 4001 transitions. [2022-01-18 14:07:22,393 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:22,393 INFO L276 IsEmpty]: Start isEmpty. Operand 1419 states and 4001 transitions. [2022-01-18 14:07:22,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:22,394 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:22,394 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:22,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2022-01-18 14:07:22,394 INFO L402 AbstractCegarLoop]: === Iteration 204 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:22,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:22,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1642175511, now seen corresponding path program 202 times [2022-01-18 14:07:22,394 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:22,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929150404] [2022-01-18 14:07:22,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:22,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:22,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:22,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:22,455 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:22,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929150404] [2022-01-18 14:07:22,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929150404] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:22,455 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:22,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:22,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382428936] [2022-01-18 14:07:22,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:22,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:22,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:22,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:22,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:22,456 INFO L87 Difference]: Start difference. First operand 1419 states and 4001 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:22,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:22,650 INFO L93 Difference]: Finished difference Result 1652 states and 4605 transitions. [2022-01-18 14:07:22,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:22,651 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:22,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:22,653 INFO L225 Difference]: With dead ends: 1652 [2022-01-18 14:07:22,653 INFO L226 Difference]: Without dead ends: 1563 [2022-01-18 14:07:22,653 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:22,653 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 47 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:22,653 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 233 Invalid, 630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 618 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:22,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1563 states. [2022-01-18 14:07:22,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1563 to 1418. [2022-01-18 14:07:22,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1418 states, 1417 states have (on average 2.8228652081863093) internal successors, (4000), 1417 states have internal predecessors, (4000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:22,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1418 states to 1418 states and 4000 transitions. [2022-01-18 14:07:22,667 INFO L78 Accepts]: Start accepts. Automaton has 1418 states and 4000 transitions. Word has length 26 [2022-01-18 14:07:22,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:22,667 INFO L470 AbstractCegarLoop]: Abstraction has 1418 states and 4000 transitions. [2022-01-18 14:07:22,667 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:22,667 INFO L276 IsEmpty]: Start isEmpty. Operand 1418 states and 4000 transitions. [2022-01-18 14:07:22,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:22,668 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:22,668 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:22,668 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2022-01-18 14:07:22,668 INFO L402 AbstractCegarLoop]: === Iteration 205 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:22,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:22,668 INFO L85 PathProgramCache]: Analyzing trace with hash -2141185107, now seen corresponding path program 203 times [2022-01-18 14:07:22,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:22,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862878199] [2022-01-18 14:07:22,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:22,669 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:22,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:22,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:22,720 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:22,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862878199] [2022-01-18 14:07:22,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862878199] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:22,720 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:22,720 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:07:22,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911092396] [2022-01-18 14:07:22,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:22,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:07:22,721 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:22,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:07:22,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:22,721 INFO L87 Difference]: Start difference. First operand 1418 states and 4000 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:22,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:22,896 INFO L93 Difference]: Finished difference Result 1692 states and 4710 transitions. [2022-01-18 14:07:22,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:07:22,896 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:22,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:22,898 INFO L225 Difference]: With dead ends: 1692 [2022-01-18 14:07:22,898 INFO L226 Difference]: Without dead ends: 1504 [2022-01-18 14:07:22,898 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:22,898 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 58 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 551 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:22,898 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 232 Invalid, 559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 551 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:22,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1504 states. [2022-01-18 14:07:22,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1504 to 1400. [2022-01-18 14:07:22,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1400 states, 1399 states have (on average 2.802001429592566) internal successors, (3920), 1399 states have internal predecessors, (3920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:22,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1400 states to 1400 states and 3920 transitions. [2022-01-18 14:07:22,912 INFO L78 Accepts]: Start accepts. Automaton has 1400 states and 3920 transitions. Word has length 26 [2022-01-18 14:07:22,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:22,912 INFO L470 AbstractCegarLoop]: Abstraction has 1400 states and 3920 transitions. [2022-01-18 14:07:22,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:22,912 INFO L276 IsEmpty]: Start isEmpty. Operand 1400 states and 3920 transitions. [2022-01-18 14:07:22,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:22,913 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:22,913 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:22,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204 [2022-01-18 14:07:22,913 INFO L402 AbstractCegarLoop]: === Iteration 206 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:22,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:22,913 INFO L85 PathProgramCache]: Analyzing trace with hash 574350543, now seen corresponding path program 204 times [2022-01-18 14:07:22,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:22,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528445175] [2022-01-18 14:07:22,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:22,914 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:22,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:22,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:22,973 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:22,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528445175] [2022-01-18 14:07:22,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528445175] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:22,973 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:22,973 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:22,973 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324748415] [2022-01-18 14:07:22,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:22,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:22,973 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:22,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:22,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:22,974 INFO L87 Difference]: Start difference. First operand 1400 states and 3920 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:23,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:23,193 INFO L93 Difference]: Finished difference Result 1597 states and 4423 transitions. [2022-01-18 14:07:23,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:23,193 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:23,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:23,195 INFO L225 Difference]: With dead ends: 1597 [2022-01-18 14:07:23,195 INFO L226 Difference]: Without dead ends: 1470 [2022-01-18 14:07:23,195 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:23,195 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 64 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 709 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:23,195 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 286 Invalid, 721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 709 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:23,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1470 states. [2022-01-18 14:07:23,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1470 to 1368. [2022-01-18 14:07:23,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1368 states, 1367 states have (on average 2.8083394294074617) internal successors, (3839), 1367 states have internal predecessors, (3839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:23,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1368 states to 1368 states and 3839 transitions. [2022-01-18 14:07:23,208 INFO L78 Accepts]: Start accepts. Automaton has 1368 states and 3839 transitions. Word has length 26 [2022-01-18 14:07:23,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:23,208 INFO L470 AbstractCegarLoop]: Abstraction has 1368 states and 3839 transitions. [2022-01-18 14:07:23,208 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:23,208 INFO L276 IsEmpty]: Start isEmpty. Operand 1368 states and 3839 transitions. [2022-01-18 14:07:23,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:23,209 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:23,209 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:23,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable205 [2022-01-18 14:07:23,209 INFO L402 AbstractCegarLoop]: === Iteration 207 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:23,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:23,210 INFO L85 PathProgramCache]: Analyzing trace with hash 583220337, now seen corresponding path program 205 times [2022-01-18 14:07:23,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:23,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635434969] [2022-01-18 14:07:23,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:23,210 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:23,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:23,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:23,277 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:23,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635434969] [2022-01-18 14:07:23,277 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635434969] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:23,277 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:23,277 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:23,277 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039995505] [2022-01-18 14:07:23,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:23,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:23,277 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:23,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:23,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:23,277 INFO L87 Difference]: Start difference. First operand 1368 states and 3839 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:23,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:23,502 INFO L93 Difference]: Finished difference Result 1512 states and 4214 transitions. [2022-01-18 14:07:23,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:23,502 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:23,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:23,504 INFO L225 Difference]: With dead ends: 1512 [2022-01-18 14:07:23,504 INFO L226 Difference]: Without dead ends: 1424 [2022-01-18 14:07:23,504 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:23,504 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 55 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 715 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 715 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:23,504 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 264 Invalid, 725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 715 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:23,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1424 states. [2022-01-18 14:07:23,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1424 to 1371. [2022-01-18 14:07:23,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1371 states, 1370 states have (on average 2.808029197080292) internal successors, (3847), 1370 states have internal predecessors, (3847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:23,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1371 states to 1371 states and 3847 transitions. [2022-01-18 14:07:23,517 INFO L78 Accepts]: Start accepts. Automaton has 1371 states and 3847 transitions. Word has length 26 [2022-01-18 14:07:23,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:23,518 INFO L470 AbstractCegarLoop]: Abstraction has 1371 states and 3847 transitions. [2022-01-18 14:07:23,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:23,518 INFO L276 IsEmpty]: Start isEmpty. Operand 1371 states and 3847 transitions. [2022-01-18 14:07:23,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:23,519 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:23,519 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:23,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206 [2022-01-18 14:07:23,519 INFO L402 AbstractCegarLoop]: === Iteration 208 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:23,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:23,523 INFO L85 PathProgramCache]: Analyzing trace with hash 671157071, now seen corresponding path program 206 times [2022-01-18 14:07:23,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:23,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634424146] [2022-01-18 14:07:23,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:23,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:23,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:23,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:23,582 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:23,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634424146] [2022-01-18 14:07:23,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634424146] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:23,582 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:23,582 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:23,582 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90934119] [2022-01-18 14:07:23,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:23,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:23,583 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:23,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:23,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:23,583 INFO L87 Difference]: Start difference. First operand 1371 states and 3847 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:23,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:23,784 INFO L93 Difference]: Finished difference Result 1563 states and 4321 transitions. [2022-01-18 14:07:23,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:23,784 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:23,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:23,786 INFO L225 Difference]: With dead ends: 1563 [2022-01-18 14:07:23,786 INFO L226 Difference]: Without dead ends: 1477 [2022-01-18 14:07:23,786 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:23,786 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 53 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 658 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:23,786 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 265 Invalid, 669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 658 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:23,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1477 states. [2022-01-18 14:07:23,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1477 to 1369. [2022-01-18 14:07:23,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1369 states, 1368 states have (on average 2.806286549707602) internal successors, (3839), 1368 states have internal predecessors, (3839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:23,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1369 states to 1369 states and 3839 transitions. [2022-01-18 14:07:23,799 INFO L78 Accepts]: Start accepts. Automaton has 1369 states and 3839 transitions. Word has length 26 [2022-01-18 14:07:23,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:23,800 INFO L470 AbstractCegarLoop]: Abstraction has 1369 states and 3839 transitions. [2022-01-18 14:07:23,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:23,800 INFO L276 IsEmpty]: Start isEmpty. Operand 1369 states and 3839 transitions. [2022-01-18 14:07:23,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:23,801 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:23,801 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:23,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207 [2022-01-18 14:07:23,801 INFO L402 AbstractCegarLoop]: === Iteration 209 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:23,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:23,801 INFO L85 PathProgramCache]: Analyzing trace with hash -808924209, now seen corresponding path program 207 times [2022-01-18 14:07:23,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:23,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444277458] [2022-01-18 14:07:23,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:23,802 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:23,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:23,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:23,860 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:23,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444277458] [2022-01-18 14:07:23,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444277458] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:23,860 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:23,860 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:23,860 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850303586] [2022-01-18 14:07:23,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:23,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:23,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:23,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:23,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:23,861 INFO L87 Difference]: Start difference. First operand 1369 states and 3839 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:24,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:24,081 INFO L93 Difference]: Finished difference Result 1575 states and 4380 transitions. [2022-01-18 14:07:24,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:24,081 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:24,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:24,083 INFO L225 Difference]: With dead ends: 1575 [2022-01-18 14:07:24,083 INFO L226 Difference]: Without dead ends: 1464 [2022-01-18 14:07:24,083 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:24,083 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 57 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 724 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:24,083 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 267 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 724 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:24,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1464 states. [2022-01-18 14:07:24,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1464 to 1349. [2022-01-18 14:07:24,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1349 states, 1348 states have (on average 2.807121661721068) internal successors, (3784), 1348 states have internal predecessors, (3784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:24,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1349 states to 1349 states and 3784 transitions. [2022-01-18 14:07:24,096 INFO L78 Accepts]: Start accepts. Automaton has 1349 states and 3784 transitions. Word has length 26 [2022-01-18 14:07:24,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:24,096 INFO L470 AbstractCegarLoop]: Abstraction has 1349 states and 3784 transitions. [2022-01-18 14:07:24,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:24,096 INFO L276 IsEmpty]: Start isEmpty. Operand 1349 states and 3784 transitions. [2022-01-18 14:07:24,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:24,098 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:24,098 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:24,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208 [2022-01-18 14:07:24,098 INFO L402 AbstractCegarLoop]: === Iteration 210 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:24,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:24,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1699875847, now seen corresponding path program 208 times [2022-01-18 14:07:24,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:24,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86088753] [2022-01-18 14:07:24,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:24,098 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:24,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:24,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:24,150 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:24,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86088753] [2022-01-18 14:07:24,150 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86088753] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:24,150 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:24,150 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:07:24,150 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398051571] [2022-01-18 14:07:24,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:24,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:07:24,150 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:24,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:07:24,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:24,150 INFO L87 Difference]: Start difference. First operand 1349 states and 3784 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:24,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:24,315 INFO L93 Difference]: Finished difference Result 1533 states and 4263 transitions. [2022-01-18 14:07:24,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:07:24,316 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:24,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:24,317 INFO L225 Difference]: With dead ends: 1533 [2022-01-18 14:07:24,317 INFO L226 Difference]: Without dead ends: 1448 [2022-01-18 14:07:24,318 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:24,318 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 43 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:24,318 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 214 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 530 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:24,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1448 states. [2022-01-18 14:07:24,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1448 to 1355. [2022-01-18 14:07:24,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1355 states, 1354 states have (on average 2.8020679468242244) internal successors, (3794), 1354 states have internal predecessors, (3794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:24,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1355 states to 1355 states and 3794 transitions. [2022-01-18 14:07:24,330 INFO L78 Accepts]: Start accepts. Automaton has 1355 states and 3794 transitions. Word has length 26 [2022-01-18 14:07:24,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:24,331 INFO L470 AbstractCegarLoop]: Abstraction has 1355 states and 3794 transitions. [2022-01-18 14:07:24,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:24,331 INFO L276 IsEmpty]: Start isEmpty. Operand 1355 states and 3794 transitions. [2022-01-18 14:07:24,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:24,332 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:24,332 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:24,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209 [2022-01-18 14:07:24,332 INFO L402 AbstractCegarLoop]: === Iteration 211 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:24,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:24,332 INFO L85 PathProgramCache]: Analyzing trace with hash 658790523, now seen corresponding path program 209 times [2022-01-18 14:07:24,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:24,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221345873] [2022-01-18 14:07:24,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:24,333 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:24,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:24,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:24,384 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:24,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221345873] [2022-01-18 14:07:24,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221345873] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:24,384 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:24,384 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:07:24,384 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002719630] [2022-01-18 14:07:24,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:24,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:07:24,384 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:24,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:07:24,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:24,384 INFO L87 Difference]: Start difference. First operand 1355 states and 3794 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:24,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:24,563 INFO L93 Difference]: Finished difference Result 1554 states and 4325 transitions. [2022-01-18 14:07:24,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:07:24,564 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:24,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:24,566 INFO L225 Difference]: With dead ends: 1554 [2022-01-18 14:07:24,566 INFO L226 Difference]: Without dead ends: 1459 [2022-01-18 14:07:24,566 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:24,566 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 48 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 572 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:24,566 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 213 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 572 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:24,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1459 states. [2022-01-18 14:07:24,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1459 to 1367. [2022-01-18 14:07:24,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1367 states, 1366 states have (on average 2.7986822840409955) internal successors, (3823), 1366 states have internal predecessors, (3823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:24,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1367 states to 1367 states and 3823 transitions. [2022-01-18 14:07:24,579 INFO L78 Accepts]: Start accepts. Automaton has 1367 states and 3823 transitions. Word has length 26 [2022-01-18 14:07:24,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:24,579 INFO L470 AbstractCegarLoop]: Abstraction has 1367 states and 3823 transitions. [2022-01-18 14:07:24,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:24,579 INFO L276 IsEmpty]: Start isEmpty. Operand 1367 states and 3823 transitions. [2022-01-18 14:07:24,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:24,580 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:24,580 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:24,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210 [2022-01-18 14:07:24,580 INFO L402 AbstractCegarLoop]: === Iteration 212 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:24,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:24,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1026162907, now seen corresponding path program 210 times [2022-01-18 14:07:24,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:24,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671454652] [2022-01-18 14:07:24,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:24,581 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:24,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:24,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:24,640 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:24,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671454652] [2022-01-18 14:07:24,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671454652] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:24,640 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:24,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:24,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208479649] [2022-01-18 14:07:24,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:24,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:24,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:24,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:24,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:24,641 INFO L87 Difference]: Start difference. First operand 1367 states and 3823 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:24,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:24,843 INFO L93 Difference]: Finished difference Result 1615 states and 4457 transitions. [2022-01-18 14:07:24,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:24,844 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:24,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:24,846 INFO L225 Difference]: With dead ends: 1615 [2022-01-18 14:07:24,846 INFO L226 Difference]: Without dead ends: 1530 [2022-01-18 14:07:24,846 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:24,846 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 48 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:24,846 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 267 Invalid, 663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 651 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:24,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1530 states. [2022-01-18 14:07:24,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1530 to 1391. [2022-01-18 14:07:24,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1391 states, 1390 states have (on average 2.7978417266187052) internal successors, (3889), 1390 states have internal predecessors, (3889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:24,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1391 states to 1391 states and 3889 transitions. [2022-01-18 14:07:24,859 INFO L78 Accepts]: Start accepts. Automaton has 1391 states and 3889 transitions. Word has length 26 [2022-01-18 14:07:24,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:24,859 INFO L470 AbstractCegarLoop]: Abstraction has 1391 states and 3889 transitions. [2022-01-18 14:07:24,859 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:24,859 INFO L276 IsEmpty]: Start isEmpty. Operand 1391 states and 3889 transitions. [2022-01-18 14:07:24,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:24,860 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:24,860 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:24,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211 [2022-01-18 14:07:24,861 INFO L402 AbstractCegarLoop]: === Iteration 213 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:24,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:24,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1289121183, now seen corresponding path program 211 times [2022-01-18 14:07:24,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:24,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884489424] [2022-01-18 14:07:24,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:24,861 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:24,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:24,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:24,923 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:24,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884489424] [2022-01-18 14:07:24,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884489424] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:24,923 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:24,923 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:24,923 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291904467] [2022-01-18 14:07:24,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:24,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:24,924 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:24,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:24,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:24,924 INFO L87 Difference]: Start difference. First operand 1391 states and 3889 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:25,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:25,128 INFO L93 Difference]: Finished difference Result 1549 states and 4282 transitions. [2022-01-18 14:07:25,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:25,128 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:25,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:25,130 INFO L225 Difference]: With dead ends: 1549 [2022-01-18 14:07:25,130 INFO L226 Difference]: Without dead ends: 1466 [2022-01-18 14:07:25,130 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:25,130 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 50 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 660 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 660 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:25,130 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 261 Invalid, 668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 660 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:25,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1466 states. [2022-01-18 14:07:25,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1466 to 1397. [2022-01-18 14:07:25,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1397 states, 1396 states have (on average 2.791547277936963) internal successors, (3897), 1396 states have internal predecessors, (3897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:25,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1397 states to 1397 states and 3897 transitions. [2022-01-18 14:07:25,143 INFO L78 Accepts]: Start accepts. Automaton has 1397 states and 3897 transitions. Word has length 26 [2022-01-18 14:07:25,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:25,143 INFO L470 AbstractCegarLoop]: Abstraction has 1397 states and 3897 transitions. [2022-01-18 14:07:25,143 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:25,143 INFO L276 IsEmpty]: Start isEmpty. Operand 1397 states and 3897 transitions. [2022-01-18 14:07:25,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:25,145 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:25,145 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:25,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212 [2022-01-18 14:07:25,145 INFO L402 AbstractCegarLoop]: === Iteration 214 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:25,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:25,145 INFO L85 PathProgramCache]: Analyzing trace with hash -643700381, now seen corresponding path program 212 times [2022-01-18 14:07:25,145 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:25,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715680333] [2022-01-18 14:07:25,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:25,145 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:25,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:25,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:25,204 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:25,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715680333] [2022-01-18 14:07:25,204 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715680333] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:25,204 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:25,205 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:25,205 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885757602] [2022-01-18 14:07:25,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:25,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:25,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:25,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:25,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:25,205 INFO L87 Difference]: Start difference. First operand 1397 states and 3897 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:25,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:25,423 INFO L93 Difference]: Finished difference Result 1624 states and 4492 transitions. [2022-01-18 14:07:25,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:25,423 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:25,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:25,425 INFO L225 Difference]: With dead ends: 1624 [2022-01-18 14:07:25,425 INFO L226 Difference]: Without dead ends: 1536 [2022-01-18 14:07:25,425 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:25,425 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 54 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 708 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:25,425 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 264 Invalid, 718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 708 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:25,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1536 states. [2022-01-18 14:07:25,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1536 to 1423. [2022-01-18 14:07:25,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1423 states, 1422 states have (on average 2.7939521800281293) internal successors, (3973), 1422 states have internal predecessors, (3973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:25,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1423 states to 1423 states and 3973 transitions. [2022-01-18 14:07:25,438 INFO L78 Accepts]: Start accepts. Automaton has 1423 states and 3973 transitions. Word has length 26 [2022-01-18 14:07:25,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:25,439 INFO L470 AbstractCegarLoop]: Abstraction has 1423 states and 3973 transitions. [2022-01-18 14:07:25,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:25,439 INFO L276 IsEmpty]: Start isEmpty. Operand 1423 states and 3973 transitions. [2022-01-18 14:07:25,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:25,440 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:25,440 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:25,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable213 [2022-01-18 14:07:25,440 INFO L402 AbstractCegarLoop]: === Iteration 215 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:25,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:25,440 INFO L85 PathProgramCache]: Analyzing trace with hash -555763647, now seen corresponding path program 213 times [2022-01-18 14:07:25,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:25,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666370258] [2022-01-18 14:07:25,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:25,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:25,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:25,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:25,505 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:25,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666370258] [2022-01-18 14:07:25,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666370258] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:25,506 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:25,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:25,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306192708] [2022-01-18 14:07:25,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:25,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:25,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:25,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:25,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:25,506 INFO L87 Difference]: Start difference. First operand 1423 states and 3973 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:25,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:25,711 INFO L93 Difference]: Finished difference Result 1572 states and 4345 transitions. [2022-01-18 14:07:25,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:25,711 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:25,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:25,713 INFO L225 Difference]: With dead ends: 1572 [2022-01-18 14:07:25,713 INFO L226 Difference]: Without dead ends: 1484 [2022-01-18 14:07:25,713 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:25,713 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 51 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 670 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:25,713 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 259 Invalid, 678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 670 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:25,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1484 states. [2022-01-18 14:07:25,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1484 to 1415. [2022-01-18 14:07:25,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1415 states, 1414 states have (on average 2.799151343705799) internal successors, (3958), 1414 states have internal predecessors, (3958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:25,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1415 states to 1415 states and 3958 transitions. [2022-01-18 14:07:25,726 INFO L78 Accepts]: Start accepts. Automaton has 1415 states and 3958 transitions. Word has length 26 [2022-01-18 14:07:25,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:25,726 INFO L470 AbstractCegarLoop]: Abstraction has 1415 states and 3958 transitions. [2022-01-18 14:07:25,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:25,727 INFO L276 IsEmpty]: Start isEmpty. Operand 1415 states and 3958 transitions. [2022-01-18 14:07:25,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:25,728 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:25,728 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:25,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214 [2022-01-18 14:07:25,728 INFO L402 AbstractCegarLoop]: === Iteration 216 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:25,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:25,728 INFO L85 PathProgramCache]: Analyzing trace with hash -248885385, now seen corresponding path program 214 times [2022-01-18 14:07:25,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:25,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979316530] [2022-01-18 14:07:25,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:25,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:25,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:25,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:25,785 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:25,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979316530] [2022-01-18 14:07:25,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979316530] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:25,786 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:25,786 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:25,786 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484594367] [2022-01-18 14:07:25,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:25,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:25,786 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:25,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:25,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:25,786 INFO L87 Difference]: Start difference. First operand 1415 states and 3958 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:25,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:25,992 INFO L93 Difference]: Finished difference Result 1653 states and 4558 transitions. [2022-01-18 14:07:25,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:25,993 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:25,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:25,995 INFO L225 Difference]: With dead ends: 1653 [2022-01-18 14:07:25,995 INFO L226 Difference]: Without dead ends: 1514 [2022-01-18 14:07:25,995 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:25,995 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 57 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 674 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:25,995 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 289 Invalid, 686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 674 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:25,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1514 states. [2022-01-18 14:07:26,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1514 to 1381. [2022-01-18 14:07:26,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1381 states, 1380 states have (on average 2.7971014492753623) internal successors, (3860), 1380 states have internal predecessors, (3860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:26,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1381 states to 1381 states and 3860 transitions. [2022-01-18 14:07:26,008 INFO L78 Accepts]: Start accepts. Automaton has 1381 states and 3860 transitions. Word has length 26 [2022-01-18 14:07:26,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:26,008 INFO L470 AbstractCegarLoop]: Abstraction has 1381 states and 3860 transitions. [2022-01-18 14:07:26,008 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:26,008 INFO L276 IsEmpty]: Start isEmpty. Operand 1381 states and 3860 transitions. [2022-01-18 14:07:26,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:26,010 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:26,010 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:26,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215 [2022-01-18 14:07:26,010 INFO L402 AbstractCegarLoop]: === Iteration 217 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:26,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:26,010 INFO L85 PathProgramCache]: Analyzing trace with hash -401326129, now seen corresponding path program 215 times [2022-01-18 14:07:26,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:26,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807772935] [2022-01-18 14:07:26,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:26,010 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:26,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:26,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:26,068 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:26,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807772935] [2022-01-18 14:07:26,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807772935] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:26,069 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:26,069 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:26,069 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647477108] [2022-01-18 14:07:26,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:26,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:26,069 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:26,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:26,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:26,069 INFO L87 Difference]: Start difference. First operand 1381 states and 3860 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:26,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:26,293 INFO L93 Difference]: Finished difference Result 1627 states and 4481 transitions. [2022-01-18 14:07:26,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:26,293 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:26,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:26,295 INFO L225 Difference]: With dead ends: 1627 [2022-01-18 14:07:26,295 INFO L226 Difference]: Without dead ends: 1465 [2022-01-18 14:07:26,295 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:26,295 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 63 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 731 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:26,295 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 286 Invalid, 741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 731 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:26,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1465 states. [2022-01-18 14:07:26,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1465 to 1360. [2022-01-18 14:07:26,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1360 states, 1359 states have (on average 2.7991169977924946) internal successors, (3804), 1359 states have internal predecessors, (3804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:26,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1360 states to 1360 states and 3804 transitions. [2022-01-18 14:07:26,309 INFO L78 Accepts]: Start accepts. Automaton has 1360 states and 3804 transitions. Word has length 26 [2022-01-18 14:07:26,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:26,309 INFO L470 AbstractCegarLoop]: Abstraction has 1360 states and 3804 transitions. [2022-01-18 14:07:26,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:26,309 INFO L276 IsEmpty]: Start isEmpty. Operand 1360 states and 3804 transitions. [2022-01-18 14:07:26,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:26,311 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:26,311 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:26,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216 [2022-01-18 14:07:26,311 INFO L402 AbstractCegarLoop]: === Iteration 218 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:26,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:26,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1113653143, now seen corresponding path program 216 times [2022-01-18 14:07:26,311 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:26,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115994336] [2022-01-18 14:07:26,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:26,311 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:26,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:26,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:26,371 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:26,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115994336] [2022-01-18 14:07:26,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115994336] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:26,371 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:26,371 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:26,371 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604820779] [2022-01-18 14:07:26,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:26,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:26,371 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:26,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:26,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:26,371 INFO L87 Difference]: Start difference. First operand 1360 states and 3804 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:26,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:26,570 INFO L93 Difference]: Finished difference Result 1494 states and 4137 transitions. [2022-01-18 14:07:26,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:26,570 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:26,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:26,572 INFO L225 Difference]: With dead ends: 1494 [2022-01-18 14:07:26,572 INFO L226 Difference]: Without dead ends: 1409 [2022-01-18 14:07:26,572 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:26,573 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 43 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 645 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:26,573 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 233 Invalid, 657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 645 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:26,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1409 states. [2022-01-18 14:07:26,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1409 to 1353. [2022-01-18 14:07:26,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1353 states, 1352 states have (on average 2.794378698224852) internal successors, (3778), 1352 states have internal predecessors, (3778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:26,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1353 states to 1353 states and 3778 transitions. [2022-01-18 14:07:26,585 INFO L78 Accepts]: Start accepts. Automaton has 1353 states and 3778 transitions. Word has length 26 [2022-01-18 14:07:26,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:26,585 INFO L470 AbstractCegarLoop]: Abstraction has 1353 states and 3778 transitions. [2022-01-18 14:07:26,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:26,585 INFO L276 IsEmpty]: Start isEmpty. Operand 1353 states and 3778 transitions. [2022-01-18 14:07:26,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:26,587 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:26,587 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:26,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217 [2022-01-18 14:07:26,587 INFO L402 AbstractCegarLoop]: === Iteration 219 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:26,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:26,587 INFO L85 PathProgramCache]: Analyzing trace with hash -822647783, now seen corresponding path program 217 times [2022-01-18 14:07:26,587 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:26,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114847655] [2022-01-18 14:07:26,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:26,587 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:26,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:26,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:26,649 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:26,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114847655] [2022-01-18 14:07:26,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114847655] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:26,649 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:26,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:26,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540721532] [2022-01-18 14:07:26,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:26,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:26,650 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:26,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:26,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:26,650 INFO L87 Difference]: Start difference. First operand 1353 states and 3778 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:26,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:26,867 INFO L93 Difference]: Finished difference Result 1511 states and 4172 transitions. [2022-01-18 14:07:26,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:26,867 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:26,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:26,869 INFO L225 Difference]: With dead ends: 1511 [2022-01-18 14:07:26,869 INFO L226 Difference]: Without dead ends: 1416 [2022-01-18 14:07:26,870 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:26,870 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 48 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:26,870 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 232 Invalid, 710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 700 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:26,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1416 states. [2022-01-18 14:07:26,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1416 to 1354. [2022-01-18 14:07:26,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1354 states, 1353 states have (on average 2.793052475979305) internal successors, (3779), 1353 states have internal predecessors, (3779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:26,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1354 states to 1354 states and 3779 transitions. [2022-01-18 14:07:26,882 INFO L78 Accepts]: Start accepts. Automaton has 1354 states and 3779 transitions. Word has length 26 [2022-01-18 14:07:26,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:26,882 INFO L470 AbstractCegarLoop]: Abstraction has 1354 states and 3779 transitions. [2022-01-18 14:07:26,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:26,882 INFO L276 IsEmpty]: Start isEmpty. Operand 1354 states and 3779 transitions. [2022-01-18 14:07:26,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:26,884 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:26,884 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:26,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218 [2022-01-18 14:07:26,884 INFO L402 AbstractCegarLoop]: === Iteration 220 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:26,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:26,884 INFO L85 PathProgramCache]: Analyzing trace with hash -455275399, now seen corresponding path program 218 times [2022-01-18 14:07:26,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:26,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443240695] [2022-01-18 14:07:26,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:26,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:26,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:26,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:26,944 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:26,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443240695] [2022-01-18 14:07:26,944 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443240695] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:26,944 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:26,944 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:26,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774791836] [2022-01-18 14:07:26,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:26,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:26,944 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:26,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:26,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:26,944 INFO L87 Difference]: Start difference. First operand 1354 states and 3779 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:27,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:27,142 INFO L93 Difference]: Finished difference Result 1525 states and 4210 transitions. [2022-01-18 14:07:27,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:27,142 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:27,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:27,144 INFO L225 Difference]: With dead ends: 1525 [2022-01-18 14:07:27,144 INFO L226 Difference]: Without dead ends: 1440 [2022-01-18 14:07:27,144 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:27,145 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 42 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 641 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:27,145 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 231 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 641 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:27,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1440 states. [2022-01-18 14:07:27,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1440 to 1356. [2022-01-18 14:07:27,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1356 states, 1355 states have (on average 2.7948339483394835) internal successors, (3787), 1355 states have internal predecessors, (3787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:27,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1356 states to 1356 states and 3787 transitions. [2022-01-18 14:07:27,157 INFO L78 Accepts]: Start accepts. Automaton has 1356 states and 3787 transitions. Word has length 26 [2022-01-18 14:07:27,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:27,158 INFO L470 AbstractCegarLoop]: Abstraction has 1356 states and 3787 transitions. [2022-01-18 14:07:27,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:27,158 INFO L276 IsEmpty]: Start isEmpty. Operand 1356 states and 3787 transitions. [2022-01-18 14:07:27,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:27,159 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:27,159 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:27,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219 [2022-01-18 14:07:27,159 INFO L402 AbstractCegarLoop]: === Iteration 221 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:27,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:27,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1524407807, now seen corresponding path program 219 times [2022-01-18 14:07:27,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:27,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745080995] [2022-01-18 14:07:27,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:27,160 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:27,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:27,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:27,220 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:27,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745080995] [2022-01-18 14:07:27,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745080995] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:27,220 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:27,220 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:27,220 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224365873] [2022-01-18 14:07:27,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:27,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:27,220 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:27,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:27,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:27,220 INFO L87 Difference]: Start difference. First operand 1356 states and 3787 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:27,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:27,420 INFO L93 Difference]: Finished difference Result 1497 states and 4138 transitions. [2022-01-18 14:07:27,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:27,421 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:27,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:27,422 INFO L225 Difference]: With dead ends: 1497 [2022-01-18 14:07:27,422 INFO L226 Difference]: Without dead ends: 1414 [2022-01-18 14:07:27,422 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:27,423 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 44 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 646 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:27,423 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 227 Invalid, 654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 646 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:27,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1414 states. [2022-01-18 14:07:27,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1414 to 1357. [2022-01-18 14:07:27,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1357 states, 1356 states have (on average 2.7942477876106193) internal successors, (3789), 1356 states have internal predecessors, (3789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:27,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1357 states to 1357 states and 3789 transitions. [2022-01-18 14:07:27,435 INFO L78 Accepts]: Start accepts. Automaton has 1357 states and 3789 transitions. Word has length 26 [2022-01-18 14:07:27,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:27,435 INFO L470 AbstractCegarLoop]: Abstraction has 1357 states and 3789 transitions. [2022-01-18 14:07:27,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:27,435 INFO L276 IsEmpty]: Start isEmpty. Operand 1357 states and 3789 transitions. [2022-01-18 14:07:27,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:27,436 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:27,437 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:27,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220 [2022-01-18 14:07:27,437 INFO L402 AbstractCegarLoop]: === Iteration 222 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:27,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:27,437 INFO L85 PathProgramCache]: Analyzing trace with hash -2125138687, now seen corresponding path program 220 times [2022-01-18 14:07:27,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:27,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906177845] [2022-01-18 14:07:27,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:27,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:27,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:27,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:27,506 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:27,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906177845] [2022-01-18 14:07:27,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906177845] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:27,506 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:27,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:27,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77036316] [2022-01-18 14:07:27,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:27,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:27,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:27,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:27,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:27,506 INFO L87 Difference]: Start difference. First operand 1357 states and 3789 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:27,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:27,717 INFO L93 Difference]: Finished difference Result 1489 states and 4130 transitions. [2022-01-18 14:07:27,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:27,718 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:27,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:27,719 INFO L225 Difference]: With dead ends: 1489 [2022-01-18 14:07:27,720 INFO L226 Difference]: Without dead ends: 1401 [2022-01-18 14:07:27,720 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:27,720 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 48 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 688 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:27,720 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 228 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 688 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:27,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1401 states. [2022-01-18 14:07:27,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1401 to 1361. [2022-01-18 14:07:27,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1361 states, 1360 states have (on average 2.7948529411764707) internal successors, (3801), 1360 states have internal predecessors, (3801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:27,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1361 states to 1361 states and 3801 transitions. [2022-01-18 14:07:27,732 INFO L78 Accepts]: Start accepts. Automaton has 1361 states and 3801 transitions. Word has length 26 [2022-01-18 14:07:27,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:27,732 INFO L470 AbstractCegarLoop]: Abstraction has 1361 states and 3801 transitions. [2022-01-18 14:07:27,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:27,732 INFO L276 IsEmpty]: Start isEmpty. Operand 1361 states and 3801 transitions. [2022-01-18 14:07:27,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:27,733 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:27,734 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:27,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable221 [2022-01-18 14:07:27,734 INFO L402 AbstractCegarLoop]: === Iteration 223 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:27,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:27,734 INFO L85 PathProgramCache]: Analyzing trace with hash -2037201953, now seen corresponding path program 221 times [2022-01-18 14:07:27,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:27,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902572114] [2022-01-18 14:07:27,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:27,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:27,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:27,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:27,793 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:27,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902572114] [2022-01-18 14:07:27,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902572114] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:27,794 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:27,794 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:27,794 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964663026] [2022-01-18 14:07:27,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:27,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:27,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:27,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:27,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:27,794 INFO L87 Difference]: Start difference. First operand 1361 states and 3801 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:27,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:27,998 INFO L93 Difference]: Finished difference Result 1502 states and 4148 transitions. [2022-01-18 14:07:27,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:27,999 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:27,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:28,001 INFO L225 Difference]: With dead ends: 1502 [2022-01-18 14:07:28,001 INFO L226 Difference]: Without dead ends: 1414 [2022-01-18 14:07:28,001 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:28,001 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 45 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 656 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:28,001 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 225 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 656 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:28,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1414 states. [2022-01-18 14:07:28,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1414 to 1360. [2022-01-18 14:07:28,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1360 states, 1359 states have (on average 2.7969094922737305) internal successors, (3801), 1359 states have internal predecessors, (3801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:28,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1360 states to 1360 states and 3801 transitions. [2022-01-18 14:07:28,014 INFO L78 Accepts]: Start accepts. Automaton has 1360 states and 3801 transitions. Word has length 26 [2022-01-18 14:07:28,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:28,014 INFO L470 AbstractCegarLoop]: Abstraction has 1360 states and 3801 transitions. [2022-01-18 14:07:28,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:28,014 INFO L276 IsEmpty]: Start isEmpty. Operand 1360 states and 3801 transitions. [2022-01-18 14:07:28,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:28,015 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:28,015 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:28,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable222 [2022-01-18 14:07:28,015 INFO L402 AbstractCegarLoop]: === Iteration 224 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:28,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:28,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1057142747, now seen corresponding path program 222 times [2022-01-18 14:07:28,015 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:28,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211093324] [2022-01-18 14:07:28,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:28,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:28,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:28,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:28,075 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:28,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211093324] [2022-01-18 14:07:28,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211093324] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:28,075 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:28,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:28,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070032472] [2022-01-18 14:07:28,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:28,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:28,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:28,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:28,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:28,076 INFO L87 Difference]: Start difference. First operand 1360 states and 3801 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:28,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:28,277 INFO L93 Difference]: Finished difference Result 1528 states and 4222 transitions. [2022-01-18 14:07:28,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:28,277 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:28,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:28,279 INFO L225 Difference]: With dead ends: 1528 [2022-01-18 14:07:28,279 INFO L226 Difference]: Without dead ends: 1443 [2022-01-18 14:07:28,279 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:28,279 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 43 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:28,279 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 235 Invalid, 655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:28,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1443 states. [2022-01-18 14:07:28,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1443 to 1358. [2022-01-18 14:07:28,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1358 states, 1357 states have (on average 2.7951363301400147) internal successors, (3793), 1357 states have internal predecessors, (3793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:28,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1358 states to 1358 states and 3793 transitions. [2022-01-18 14:07:28,292 INFO L78 Accepts]: Start accepts. Automaton has 1358 states and 3793 transitions. Word has length 26 [2022-01-18 14:07:28,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:28,292 INFO L470 AbstractCegarLoop]: Abstraction has 1358 states and 3793 transitions. [2022-01-18 14:07:28,292 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:28,292 INFO L276 IsEmpty]: Start isEmpty. Operand 1358 states and 3793 transitions. [2022-01-18 14:07:28,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:28,293 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:28,293 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:28,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable223 [2022-01-18 14:07:28,294 INFO L402 AbstractCegarLoop]: === Iteration 225 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:28,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:28,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1258141343, now seen corresponding path program 223 times [2022-01-18 14:07:28,294 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:28,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993239560] [2022-01-18 14:07:28,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:28,294 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:28,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:28,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:28,367 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:28,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993239560] [2022-01-18 14:07:28,367 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993239560] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:28,367 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:28,367 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:28,367 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595005303] [2022-01-18 14:07:28,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:28,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:28,367 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:28,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:28,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:28,368 INFO L87 Difference]: Start difference. First operand 1358 states and 3793 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:28,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:28,570 INFO L93 Difference]: Finished difference Result 1519 states and 4205 transitions. [2022-01-18 14:07:28,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:28,571 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:28,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:28,573 INFO L225 Difference]: With dead ends: 1519 [2022-01-18 14:07:28,573 INFO L226 Difference]: Without dead ends: 1436 [2022-01-18 14:07:28,573 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:28,573 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 45 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 649 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:28,573 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 231 Invalid, 658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 649 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:28,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1436 states. [2022-01-18 14:07:28,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1436 to 1359. [2022-01-18 14:07:28,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1359 states, 1358 states have (on average 2.792341678939617) internal successors, (3792), 1358 states have internal predecessors, (3792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:28,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1359 states to 1359 states and 3792 transitions. [2022-01-18 14:07:28,586 INFO L78 Accepts]: Start accepts. Automaton has 1359 states and 3792 transitions. Word has length 26 [2022-01-18 14:07:28,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:28,586 INFO L470 AbstractCegarLoop]: Abstraction has 1359 states and 3792 transitions. [2022-01-18 14:07:28,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:28,586 INFO L276 IsEmpty]: Start isEmpty. Operand 1359 states and 3792 transitions. [2022-01-18 14:07:28,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:28,587 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:28,587 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:28,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable224 [2022-01-18 14:07:28,587 INFO L402 AbstractCegarLoop]: === Iteration 226 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:28,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:28,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1787758817, now seen corresponding path program 224 times [2022-01-18 14:07:28,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:28,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961085719] [2022-01-18 14:07:28,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:28,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:28,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:28,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:28,648 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:28,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961085719] [2022-01-18 14:07:28,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961085719] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:28,648 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:28,648 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:28,648 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678363023] [2022-01-18 14:07:28,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:28,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:28,648 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:28,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:28,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:28,648 INFO L87 Difference]: Start difference. First operand 1359 states and 3792 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:28,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:28,846 INFO L93 Difference]: Finished difference Result 1503 states and 4164 transitions. [2022-01-18 14:07:28,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:28,847 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:28,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:28,848 INFO L225 Difference]: With dead ends: 1503 [2022-01-18 14:07:28,848 INFO L226 Difference]: Without dead ends: 1416 [2022-01-18 14:07:28,849 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:28,849 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 47 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 636 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:28,849 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 231 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 636 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:28,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1416 states. [2022-01-18 14:07:28,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1416 to 1358. [2022-01-18 14:07:28,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1358 states, 1357 states have (on average 2.7943994104642593) internal successors, (3792), 1357 states have internal predecessors, (3792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:28,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1358 states to 1358 states and 3792 transitions. [2022-01-18 14:07:28,861 INFO L78 Accepts]: Start accepts. Automaton has 1358 states and 3792 transitions. Word has length 26 [2022-01-18 14:07:28,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:28,861 INFO L470 AbstractCegarLoop]: Abstraction has 1358 states and 3792 transitions. [2022-01-18 14:07:28,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:28,861 INFO L276 IsEmpty]: Start isEmpty. Operand 1358 states and 3792 transitions. [2022-01-18 14:07:28,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:28,863 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:28,863 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:28,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable225 [2022-01-18 14:07:28,863 INFO L402 AbstractCegarLoop]: === Iteration 227 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:28,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:28,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1106505571, now seen corresponding path program 225 times [2022-01-18 14:07:28,863 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:28,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955692987] [2022-01-18 14:07:28,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:28,863 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:28,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:28,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:28,925 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:28,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955692987] [2022-01-18 14:07:28,925 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955692987] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:28,925 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:28,925 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:28,925 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291929713] [2022-01-18 14:07:28,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:28,926 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:28,926 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:28,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:28,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:28,926 INFO L87 Difference]: Start difference. First operand 1358 states and 3792 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:29,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:29,143 INFO L93 Difference]: Finished difference Result 1491 states and 4141 transitions. [2022-01-18 14:07:29,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:29,143 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:29,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:29,144 INFO L225 Difference]: With dead ends: 1491 [2022-01-18 14:07:29,145 INFO L226 Difference]: Without dead ends: 1403 [2022-01-18 14:07:29,145 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:29,145 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 49 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 694 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:29,145 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 230 Invalid, 702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 694 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:29,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1403 states. [2022-01-18 14:07:29,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1403 to 1360. [2022-01-18 14:07:29,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1360 states, 1359 states have (on average 2.795437821927888) internal successors, (3799), 1359 states have internal predecessors, (3799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:29,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1360 states to 1360 states and 3799 transitions. [2022-01-18 14:07:29,157 INFO L78 Accepts]: Start accepts. Automaton has 1360 states and 3799 transitions. Word has length 26 [2022-01-18 14:07:29,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:29,157 INFO L470 AbstractCegarLoop]: Abstraction has 1360 states and 3799 transitions. [2022-01-18 14:07:29,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:29,157 INFO L276 IsEmpty]: Start isEmpty. Operand 1360 states and 3799 transitions. [2022-01-18 14:07:29,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:29,159 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:29,159 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:29,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226 [2022-01-18 14:07:29,159 INFO L402 AbstractCegarLoop]: === Iteration 228 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:29,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:29,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1194442305, now seen corresponding path program 226 times [2022-01-18 14:07:29,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:29,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105923857] [2022-01-18 14:07:29,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:29,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:29,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:29,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:29,225 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:29,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105923857] [2022-01-18 14:07:29,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105923857] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:29,225 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:29,225 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:29,225 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069503764] [2022-01-18 14:07:29,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:29,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:29,225 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:29,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:29,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:29,226 INFO L87 Difference]: Start difference. First operand 1360 states and 3799 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:29,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:29,432 INFO L93 Difference]: Finished difference Result 1499 states and 4143 transitions. [2022-01-18 14:07:29,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:29,432 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:29,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:29,434 INFO L225 Difference]: With dead ends: 1499 [2022-01-18 14:07:29,434 INFO L226 Difference]: Without dead ends: 1413 [2022-01-18 14:07:29,434 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:29,434 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 46 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:29,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 227 Invalid, 670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 662 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:29,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1413 states. [2022-01-18 14:07:29,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1413 to 1359. [2022-01-18 14:07:29,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1359 states, 1358 states have (on average 2.792341678939617) internal successors, (3792), 1358 states have internal predecessors, (3792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:29,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1359 states to 1359 states and 3792 transitions. [2022-01-18 14:07:29,447 INFO L78 Accepts]: Start accepts. Automaton has 1359 states and 3792 transitions. Word has length 26 [2022-01-18 14:07:29,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:29,447 INFO L470 AbstractCegarLoop]: Abstraction has 1359 states and 3792 transitions. [2022-01-18 14:07:29,447 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:29,447 INFO L276 IsEmpty]: Start isEmpty. Operand 1359 states and 3792 transitions. [2022-01-18 14:07:29,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:29,448 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:29,448 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:29,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable227 [2022-01-18 14:07:29,448 INFO L402 AbstractCegarLoop]: === Iteration 229 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:29,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:29,449 INFO L85 PathProgramCache]: Analyzing trace with hash -285638975, now seen corresponding path program 227 times [2022-01-18 14:07:29,449 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:29,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473461927] [2022-01-18 14:07:29,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:29,449 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:29,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:29,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:29,511 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:29,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473461927] [2022-01-18 14:07:29,511 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473461927] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:29,511 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:29,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:29,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843746309] [2022-01-18 14:07:29,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:29,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:29,512 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:29,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:29,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:29,512 INFO L87 Difference]: Start difference. First operand 1359 states and 3792 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:29,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:29,737 INFO L93 Difference]: Finished difference Result 1555 states and 4298 transitions. [2022-01-18 14:07:29,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:29,737 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:29,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:29,739 INFO L225 Difference]: With dead ends: 1555 [2022-01-18 14:07:29,739 INFO L226 Difference]: Without dead ends: 1458 [2022-01-18 14:07:29,739 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:29,739 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 51 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 709 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:29,739 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 235 Invalid, 721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 709 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:29,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1458 states. [2022-01-18 14:07:29,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1458 to 1352. [2022-01-18 14:07:29,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1352 states, 1351 states have (on average 2.789785344189489) internal successors, (3769), 1351 states have internal predecessors, (3769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:29,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1352 states to 1352 states and 3769 transitions. [2022-01-18 14:07:29,752 INFO L78 Accepts]: Start accepts. Automaton has 1352 states and 3769 transitions. Word has length 26 [2022-01-18 14:07:29,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:29,752 INFO L470 AbstractCegarLoop]: Abstraction has 1352 states and 3769 transitions. [2022-01-18 14:07:29,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:29,752 INFO L276 IsEmpty]: Start isEmpty. Operand 1352 states and 3769 transitions. [2022-01-18 14:07:29,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:29,754 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:29,754 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:29,754 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable228 [2022-01-18 14:07:29,754 INFO L402 AbstractCegarLoop]: === Iteration 230 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:29,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:29,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1104682655, now seen corresponding path program 228 times [2022-01-18 14:07:29,754 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:29,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292833054] [2022-01-18 14:07:29,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:29,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:29,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:29,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:29,816 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:29,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292833054] [2022-01-18 14:07:29,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292833054] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:29,816 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:29,816 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:29,816 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893572911] [2022-01-18 14:07:29,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:29,816 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:29,816 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:29,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:29,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:29,816 INFO L87 Difference]: Start difference. First operand 1352 states and 3769 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:30,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:30,018 INFO L93 Difference]: Finished difference Result 1504 states and 4155 transitions. [2022-01-18 14:07:30,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:30,018 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:30,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:30,020 INFO L225 Difference]: With dead ends: 1504 [2022-01-18 14:07:30,020 INFO L226 Difference]: Without dead ends: 1415 [2022-01-18 14:07:30,020 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:30,020 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 47 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 647 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:30,020 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 230 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 647 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:30,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1415 states. [2022-01-18 14:07:30,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1415 to 1347. [2022-01-18 14:07:30,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1347 states, 1346 states have (on average 2.791976225854383) internal successors, (3758), 1346 states have internal predecessors, (3758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:30,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1347 states to 1347 states and 3758 transitions. [2022-01-18 14:07:30,032 INFO L78 Accepts]: Start accepts. Automaton has 1347 states and 3758 transitions. Word has length 26 [2022-01-18 14:07:30,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:30,033 INFO L470 AbstractCegarLoop]: Abstraction has 1347 states and 3758 transitions. [2022-01-18 14:07:30,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:30,033 INFO L276 IsEmpty]: Start isEmpty. Operand 1347 states and 3758 transitions. [2022-01-18 14:07:30,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:30,034 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:30,034 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:30,034 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable229 [2022-01-18 14:07:30,034 INFO L402 AbstractCegarLoop]: === Iteration 231 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:30,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:30,034 INFO L85 PathProgramCache]: Analyzing trace with hash 907461327, now seen corresponding path program 229 times [2022-01-18 14:07:30,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:30,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336684934] [2022-01-18 14:07:30,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:30,034 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:30,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:30,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:30,086 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:30,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336684934] [2022-01-18 14:07:30,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336684934] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:30,086 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:30,086 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:07:30,086 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163546676] [2022-01-18 14:07:30,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:30,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:07:30,086 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:30,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:07:30,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:30,087 INFO L87 Difference]: Start difference. First operand 1347 states and 3758 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:30,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:30,268 INFO L93 Difference]: Finished difference Result 1541 states and 4265 transitions. [2022-01-18 14:07:30,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:07:30,268 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:30,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:30,270 INFO L225 Difference]: With dead ends: 1541 [2022-01-18 14:07:30,270 INFO L226 Difference]: Without dead ends: 1453 [2022-01-18 14:07:30,270 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:30,270 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 52 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:30,271 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 228 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 581 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:30,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1453 states. [2022-01-18 14:07:30,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1453 to 1373. [2022-01-18 14:07:30,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1373 states, 1372 states have (on average 2.794460641399417) internal successors, (3834), 1372 states have internal predecessors, (3834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:30,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1373 states to 1373 states and 3834 transitions. [2022-01-18 14:07:30,283 INFO L78 Accepts]: Start accepts. Automaton has 1373 states and 3834 transitions. Word has length 26 [2022-01-18 14:07:30,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:30,283 INFO L470 AbstractCegarLoop]: Abstraction has 1373 states and 3834 transitions. [2022-01-18 14:07:30,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:30,283 INFO L276 IsEmpty]: Start isEmpty. Operand 1373 states and 3834 transitions. [2022-01-18 14:07:30,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:30,285 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:30,285 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:30,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable230 [2022-01-18 14:07:30,285 INFO L402 AbstractCegarLoop]: === Iteration 232 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:30,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:30,285 INFO L85 PathProgramCache]: Analyzing trace with hash 995398061, now seen corresponding path program 230 times [2022-01-18 14:07:30,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:30,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845865368] [2022-01-18 14:07:30,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:30,285 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:30,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:30,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:30,351 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:30,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845865368] [2022-01-18 14:07:30,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845865368] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:30,351 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:30,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:30,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042429379] [2022-01-18 14:07:30,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:30,352 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:30,352 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:30,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:30,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:30,352 INFO L87 Difference]: Start difference. First operand 1373 states and 3834 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:30,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:30,579 INFO L93 Difference]: Finished difference Result 1604 states and 4405 transitions. [2022-01-18 14:07:30,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:30,580 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:30,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:30,581 INFO L225 Difference]: With dead ends: 1604 [2022-01-18 14:07:30,582 INFO L226 Difference]: Without dead ends: 1393 [2022-01-18 14:07:30,582 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:30,582 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 65 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 742 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:30,582 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 287 Invalid, 754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 742 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:30,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1393 states. [2022-01-18 14:07:30,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1393 to 1293. [2022-01-18 14:07:30,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1293 states, 1292 states have (on average 2.7809597523219813) internal successors, (3593), 1292 states have internal predecessors, (3593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:30,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1293 states to 1293 states and 3593 transitions. [2022-01-18 14:07:30,594 INFO L78 Accepts]: Start accepts. Automaton has 1293 states and 3593 transitions. Word has length 26 [2022-01-18 14:07:30,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:30,594 INFO L470 AbstractCegarLoop]: Abstraction has 1293 states and 3593 transitions. [2022-01-18 14:07:30,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:30,594 INFO L276 IsEmpty]: Start isEmpty. Operand 1293 states and 3593 transitions. [2022-01-18 14:07:30,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:30,595 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:30,595 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:30,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable231 [2022-01-18 14:07:30,596 INFO L402 AbstractCegarLoop]: === Iteration 233 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:30,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:30,596 INFO L85 PathProgramCache]: Analyzing trace with hash -802894991, now seen corresponding path program 231 times [2022-01-18 14:07:30,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:30,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124010290] [2022-01-18 14:07:30,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:30,596 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:30,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:30,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:30,655 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:30,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124010290] [2022-01-18 14:07:30,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124010290] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:30,655 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:30,655 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:30,655 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588512478] [2022-01-18 14:07:30,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:30,655 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:30,656 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:30,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:30,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:30,656 INFO L87 Difference]: Start difference. First operand 1293 states and 3593 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:30,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:30,874 INFO L93 Difference]: Finished difference Result 1480 states and 4066 transitions. [2022-01-18 14:07:30,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:30,874 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:30,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:30,876 INFO L225 Difference]: With dead ends: 1480 [2022-01-18 14:07:30,876 INFO L226 Difference]: Without dead ends: 1392 [2022-01-18 14:07:30,876 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:30,876 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 55 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 709 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:30,876 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 267 Invalid, 720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 709 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:30,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1392 states. [2022-01-18 14:07:30,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1392 to 1290. [2022-01-18 14:07:30,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1290 states, 1289 states have (on average 2.7812257564003104) internal successors, (3585), 1289 states have internal predecessors, (3585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:30,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1290 states to 1290 states and 3585 transitions. [2022-01-18 14:07:30,888 INFO L78 Accepts]: Start accepts. Automaton has 1290 states and 3585 transitions. Word has length 26 [2022-01-18 14:07:30,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:30,888 INFO L470 AbstractCegarLoop]: Abstraction has 1290 states and 3585 transitions. [2022-01-18 14:07:30,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:30,888 INFO L276 IsEmpty]: Start isEmpty. Operand 1290 states and 3585 transitions. [2022-01-18 14:07:30,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:30,889 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:30,889 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:30,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable232 [2022-01-18 14:07:30,889 INFO L402 AbstractCegarLoop]: === Iteration 234 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:30,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:30,890 INFO L85 PathProgramCache]: Analyzing trace with hash -714958257, now seen corresponding path program 232 times [2022-01-18 14:07:30,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:30,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82056599] [2022-01-18 14:07:30,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:30,890 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:30,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:30,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:30,949 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:30,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82056599] [2022-01-18 14:07:30,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82056599] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:30,949 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:30,949 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:30,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979110034] [2022-01-18 14:07:30,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:30,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:30,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:30,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:30,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:30,950 INFO L87 Difference]: Start difference. First operand 1290 states and 3585 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:31,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:31,166 INFO L93 Difference]: Finished difference Result 1427 states and 3933 transitions. [2022-01-18 14:07:31,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:31,167 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:31,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:31,168 INFO L225 Difference]: With dead ends: 1427 [2022-01-18 14:07:31,168 INFO L226 Difference]: Without dead ends: 1341 [2022-01-18 14:07:31,168 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:31,169 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 54 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 679 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:31,169 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 263 Invalid, 689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 679 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:31,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1341 states. [2022-01-18 14:07:31,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1341 to 1293. [2022-01-18 14:07:31,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1293 states, 1292 states have (on average 2.778637770897833) internal successors, (3590), 1292 states have internal predecessors, (3590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:31,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1293 states to 1293 states and 3590 transitions. [2022-01-18 14:07:31,181 INFO L78 Accepts]: Start accepts. Automaton has 1293 states and 3590 transitions. Word has length 26 [2022-01-18 14:07:31,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:31,181 INFO L470 AbstractCegarLoop]: Abstraction has 1293 states and 3590 transitions. [2022-01-18 14:07:31,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:31,181 INFO L276 IsEmpty]: Start isEmpty. Operand 1293 states and 3590 transitions. [2022-01-18 14:07:31,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:31,182 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:31,182 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:31,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable233 [2022-01-18 14:07:31,182 INFO L402 AbstractCegarLoop]: === Iteration 235 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:31,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:31,182 INFO L85 PathProgramCache]: Analyzing trace with hash -804717907, now seen corresponding path program 233 times [2022-01-18 14:07:31,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:31,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623645162] [2022-01-18 14:07:31,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:31,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:31,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:31,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:31,242 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:31,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623645162] [2022-01-18 14:07:31,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623645162] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:31,242 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:31,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:31,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24859833] [2022-01-18 14:07:31,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:31,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:31,242 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:31,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:31,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:31,243 INFO L87 Difference]: Start difference. First operand 1293 states and 3590 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:31,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:31,448 INFO L93 Difference]: Finished difference Result 1430 states and 3930 transitions. [2022-01-18 14:07:31,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:31,448 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:31,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:31,450 INFO L225 Difference]: With dead ends: 1430 [2022-01-18 14:07:31,450 INFO L226 Difference]: Without dead ends: 1298 [2022-01-18 14:07:31,450 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:31,450 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 55 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:31,450 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 266 Invalid, 675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 664 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:31,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1298 states. [2022-01-18 14:07:31,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1298 to 1201. [2022-01-18 14:07:31,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1201 states, 1200 states have (on average 2.7925) internal successors, (3351), 1200 states have internal predecessors, (3351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:31,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1201 states to 1201 states and 3351 transitions. [2022-01-18 14:07:31,461 INFO L78 Accepts]: Start accepts. Automaton has 1201 states and 3351 transitions. Word has length 26 [2022-01-18 14:07:31,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:31,461 INFO L470 AbstractCegarLoop]: Abstraction has 1201 states and 3351 transitions. [2022-01-18 14:07:31,461 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:31,461 INFO L276 IsEmpty]: Start isEmpty. Operand 1201 states and 3351 transitions. [2022-01-18 14:07:31,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:31,462 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:31,462 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:31,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable234 [2022-01-18 14:07:31,462 INFO L402 AbstractCegarLoop]: === Iteration 236 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:31,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:31,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1461656273, now seen corresponding path program 234 times [2022-01-18 14:07:31,463 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:31,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484940721] [2022-01-18 14:07:31,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:31,463 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:31,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:31,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:31,523 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:31,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484940721] [2022-01-18 14:07:31,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484940721] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:31,523 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:31,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:07:31,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864611439] [2022-01-18 14:07:31,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:31,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:07:31,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:31,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:07:31,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:31,524 INFO L87 Difference]: Start difference. First operand 1201 states and 3351 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:31,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:31,716 INFO L93 Difference]: Finished difference Result 1516 states and 4163 transitions. [2022-01-18 14:07:31,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:07:31,716 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:31,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:31,718 INFO L225 Difference]: With dead ends: 1516 [2022-01-18 14:07:31,718 INFO L226 Difference]: Without dead ends: 1341 [2022-01-18 14:07:31,718 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:31,718 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 66 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:31,718 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 254 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:31,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1341 states. [2022-01-18 14:07:31,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1341 to 1275. [2022-01-18 14:07:31,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1275 states, 1274 states have (on average 2.770800627943485) internal successors, (3530), 1274 states have internal predecessors, (3530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:31,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1275 states to 1275 states and 3530 transitions. [2022-01-18 14:07:31,730 INFO L78 Accepts]: Start accepts. Automaton has 1275 states and 3530 transitions. Word has length 26 [2022-01-18 14:07:31,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:31,730 INFO L470 AbstractCegarLoop]: Abstraction has 1275 states and 3530 transitions. [2022-01-18 14:07:31,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:31,731 INFO L276 IsEmpty]: Start isEmpty. Operand 1275 states and 3530 transitions. [2022-01-18 14:07:31,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:31,732 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:31,732 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:31,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable235 [2022-01-18 14:07:31,732 INFO L402 AbstractCegarLoop]: === Iteration 237 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:31,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:31,732 INFO L85 PathProgramCache]: Analyzing trace with hash 717041905, now seen corresponding path program 235 times [2022-01-18 14:07:31,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:31,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815299948] [2022-01-18 14:07:31,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:31,732 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:31,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:31,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:31,790 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:31,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815299948] [2022-01-18 14:07:31,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815299948] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:31,790 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:31,790 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:31,790 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814202504] [2022-01-18 14:07:31,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:31,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:31,790 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:31,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:31,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:31,791 INFO L87 Difference]: Start difference. First operand 1275 states and 3530 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:32,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:32,009 INFO L93 Difference]: Finished difference Result 1474 states and 4020 transitions. [2022-01-18 14:07:32,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:32,009 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:32,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:32,011 INFO L225 Difference]: With dead ends: 1474 [2022-01-18 14:07:32,011 INFO L226 Difference]: Without dead ends: 1337 [2022-01-18 14:07:32,011 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:32,011 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 68 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:32,011 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 311 Invalid, 708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 698 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:32,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1337 states. [2022-01-18 14:07:32,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1337 to 1249. [2022-01-18 14:07:32,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1249 states, 1248 states have (on average 2.769230769230769) internal successors, (3456), 1248 states have internal predecessors, (3456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:32,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1249 states to 1249 states and 3456 transitions. [2022-01-18 14:07:32,023 INFO L78 Accepts]: Start accepts. Automaton has 1249 states and 3456 transitions. Word has length 26 [2022-01-18 14:07:32,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:32,023 INFO L470 AbstractCegarLoop]: Abstraction has 1249 states and 3456 transitions. [2022-01-18 14:07:32,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:32,023 INFO L276 IsEmpty]: Start isEmpty. Operand 1249 states and 3456 transitions. [2022-01-18 14:07:32,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:32,024 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:32,024 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:32,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable236 [2022-01-18 14:07:32,024 INFO L402 AbstractCegarLoop]: === Iteration 238 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:32,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:32,024 INFO L85 PathProgramCache]: Analyzing trace with hash 586578129, now seen corresponding path program 236 times [2022-01-18 14:07:32,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:32,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846011642] [2022-01-18 14:07:32,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:32,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:32,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:32,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:32,075 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:32,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846011642] [2022-01-18 14:07:32,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846011642] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:32,075 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:32,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:07:32,075 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430925889] [2022-01-18 14:07:32,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:32,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:07:32,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:32,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:07:32,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:32,076 INFO L87 Difference]: Start difference. First operand 1249 states and 3456 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:32,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:32,238 INFO L93 Difference]: Finished difference Result 1527 states and 4192 transitions. [2022-01-18 14:07:32,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:07:32,238 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:32,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:32,240 INFO L225 Difference]: With dead ends: 1527 [2022-01-18 14:07:32,240 INFO L226 Difference]: Without dead ends: 1416 [2022-01-18 14:07:32,240 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:32,240 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 58 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:32,240 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 248 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 518 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:32,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1416 states. [2022-01-18 14:07:32,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1416 to 1255. [2022-01-18 14:07:32,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1255 states, 1254 states have (on average 2.7639553429027113) internal successors, (3466), 1254 states have internal predecessors, (3466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:32,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 3466 transitions. [2022-01-18 14:07:32,252 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 3466 transitions. Word has length 26 [2022-01-18 14:07:32,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:32,252 INFO L470 AbstractCegarLoop]: Abstraction has 1255 states and 3466 transitions. [2022-01-18 14:07:32,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:32,252 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 3466 transitions. [2022-01-18 14:07:32,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:32,254 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:32,254 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:32,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable237 [2022-01-18 14:07:32,254 INFO L402 AbstractCegarLoop]: === Iteration 239 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:32,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:32,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1086004243, now seen corresponding path program 237 times [2022-01-18 14:07:32,254 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:32,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235617749] [2022-01-18 14:07:32,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:32,254 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:32,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:32,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:32,312 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:32,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235617749] [2022-01-18 14:07:32,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235617749] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:32,312 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:32,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:32,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310769482] [2022-01-18 14:07:32,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:32,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:32,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:32,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:32,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:32,313 INFO L87 Difference]: Start difference. First operand 1255 states and 3466 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:32,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:32,519 INFO L93 Difference]: Finished difference Result 1417 states and 3868 transitions. [2022-01-18 14:07:32,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:32,519 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:32,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:32,521 INFO L225 Difference]: With dead ends: 1417 [2022-01-18 14:07:32,521 INFO L226 Difference]: Without dead ends: 1324 [2022-01-18 14:07:32,521 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:32,521 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 59 mSDsluCounter, 497 mSDsCounter, 0 mSdLazyCounter, 680 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:32,521 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 285 Invalid, 688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 680 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:32,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1324 states. [2022-01-18 14:07:32,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1324 to 1258. [2022-01-18 14:07:32,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1258 states, 1257 states have (on average 2.7661097852028638) internal successors, (3477), 1257 states have internal predecessors, (3477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:32,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1258 states to 1258 states and 3477 transitions. [2022-01-18 14:07:32,533 INFO L78 Accepts]: Start accepts. Automaton has 1258 states and 3477 transitions. Word has length 26 [2022-01-18 14:07:32,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:32,533 INFO L470 AbstractCegarLoop]: Abstraction has 1258 states and 3477 transitions. [2022-01-18 14:07:32,533 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:32,533 INFO L276 IsEmpty]: Start isEmpty. Operand 1258 states and 3477 transitions. [2022-01-18 14:07:32,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:32,534 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:32,534 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:32,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable238 [2022-01-18 14:07:32,534 INFO L402 AbstractCegarLoop]: === Iteration 240 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:32,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:32,535 INFO L85 PathProgramCache]: Analyzing trace with hash -625337261, now seen corresponding path program 238 times [2022-01-18 14:07:32,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:32,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687710020] [2022-01-18 14:07:32,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:32,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:32,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:32,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:32,592 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:32,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687710020] [2022-01-18 14:07:32,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687710020] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:32,592 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:32,592 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:32,592 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881056699] [2022-01-18 14:07:32,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:32,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:32,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:32,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:32,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:32,593 INFO L87 Difference]: Start difference. First operand 1258 states and 3477 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:32,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:32,812 INFO L93 Difference]: Finished difference Result 1452 states and 3941 transitions. [2022-01-18 14:07:32,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:32,812 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:32,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:32,814 INFO L225 Difference]: With dead ends: 1452 [2022-01-18 14:07:32,814 INFO L226 Difference]: Without dead ends: 1334 [2022-01-18 14:07:32,814 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:32,814 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 64 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 725 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:32,814 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 287 Invalid, 735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 725 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:32,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1334 states. [2022-01-18 14:07:32,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1334 to 1252. [2022-01-18 14:07:32,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1252 states, 1251 states have (on average 2.7569944044764187) internal successors, (3449), 1251 states have internal predecessors, (3449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:32,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1252 states to 1252 states and 3449 transitions. [2022-01-18 14:07:32,826 INFO L78 Accepts]: Start accepts. Automaton has 1252 states and 3449 transitions. Word has length 26 [2022-01-18 14:07:32,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:32,826 INFO L470 AbstractCegarLoop]: Abstraction has 1252 states and 3449 transitions. [2022-01-18 14:07:32,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:32,826 INFO L276 IsEmpty]: Start isEmpty. Operand 1252 states and 3449 transitions. [2022-01-18 14:07:32,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:32,827 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:32,828 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:32,828 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable239 [2022-01-18 14:07:32,828 INFO L402 AbstractCegarLoop]: === Iteration 241 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:32,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:32,828 INFO L85 PathProgramCache]: Analyzing trace with hash 2006580209, now seen corresponding path program 239 times [2022-01-18 14:07:32,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:32,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017773435] [2022-01-18 14:07:32,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:32,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:32,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:32,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:32,895 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:32,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017773435] [2022-01-18 14:07:32,895 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017773435] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:32,895 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:32,895 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:32,895 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52919046] [2022-01-18 14:07:32,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:32,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:32,895 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:32,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:32,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:32,895 INFO L87 Difference]: Start difference. First operand 1252 states and 3449 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:33,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:33,095 INFO L93 Difference]: Finished difference Result 1528 states and 4182 transitions. [2022-01-18 14:07:33,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:33,095 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:33,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:33,097 INFO L225 Difference]: With dead ends: 1528 [2022-01-18 14:07:33,097 INFO L226 Difference]: Without dead ends: 1420 [2022-01-18 14:07:33,097 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:33,097 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 61 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 640 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:33,097 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 288 Invalid, 650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 640 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:33,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1420 states. [2022-01-18 14:07:33,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1420 to 1249. [2022-01-18 14:07:33,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1249 states, 1248 states have (on average 2.7572115384615383) internal successors, (3441), 1248 states have internal predecessors, (3441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:33,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1249 states to 1249 states and 3441 transitions. [2022-01-18 14:07:33,109 INFO L78 Accepts]: Start accepts. Automaton has 1249 states and 3441 transitions. Word has length 26 [2022-01-18 14:07:33,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:33,109 INFO L470 AbstractCegarLoop]: Abstraction has 1249 states and 3441 transitions. [2022-01-18 14:07:33,109 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:33,109 INFO L276 IsEmpty]: Start isEmpty. Operand 1249 states and 3441 transitions. [2022-01-18 14:07:33,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:33,110 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:33,111 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:33,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable240 [2022-01-18 14:07:33,111 INFO L402 AbstractCegarLoop]: === Iteration 242 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:33,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:33,111 INFO L85 PathProgramCache]: Analyzing trace with hash 946334187, now seen corresponding path program 240 times [2022-01-18 14:07:33,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:33,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734485023] [2022-01-18 14:07:33,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:33,111 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:33,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:33,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:33,162 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:33,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734485023] [2022-01-18 14:07:33,162 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734485023] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:33,162 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:33,162 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:07:33,162 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407100958] [2022-01-18 14:07:33,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:33,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:07:33,163 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:33,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:07:33,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:33,163 INFO L87 Difference]: Start difference. First operand 1249 states and 3441 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:33,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:33,320 INFO L93 Difference]: Finished difference Result 1511 states and 4128 transitions. [2022-01-18 14:07:33,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:07:33,320 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:33,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:33,322 INFO L225 Difference]: With dead ends: 1511 [2022-01-18 14:07:33,322 INFO L226 Difference]: Without dead ends: 1418 [2022-01-18 14:07:33,322 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:33,322 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 56 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:33,323 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 246 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 506 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 14:07:33,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1418 states. [2022-01-18 14:07:33,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1418 to 1275. [2022-01-18 14:07:33,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1275 states, 1274 states have (on average 2.760596546310832) internal successors, (3517), 1274 states have internal predecessors, (3517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:33,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1275 states to 1275 states and 3517 transitions. [2022-01-18 14:07:33,334 INFO L78 Accepts]: Start accepts. Automaton has 1275 states and 3517 transitions. Word has length 26 [2022-01-18 14:07:33,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:33,335 INFO L470 AbstractCegarLoop]: Abstraction has 1275 states and 3517 transitions. [2022-01-18 14:07:33,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:33,335 INFO L276 IsEmpty]: Start isEmpty. Operand 1275 states and 3517 transitions. [2022-01-18 14:07:33,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:33,336 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:33,336 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:33,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable241 [2022-01-18 14:07:33,336 INFO L402 AbstractCegarLoop]: === Iteration 243 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:33,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:33,336 INFO L85 PathProgramCache]: Analyzing trace with hash -765007317, now seen corresponding path program 241 times [2022-01-18 14:07:33,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:33,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374976919] [2022-01-18 14:07:33,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:33,337 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:33,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:33,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:33,393 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:33,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374976919] [2022-01-18 14:07:33,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374976919] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:33,393 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:33,393 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:33,393 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544368740] [2022-01-18 14:07:33,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:33,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:33,393 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:33,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:33,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:33,394 INFO L87 Difference]: Start difference. First operand 1275 states and 3517 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:33,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:33,597 INFO L93 Difference]: Finished difference Result 1582 states and 4293 transitions. [2022-01-18 14:07:33,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:33,597 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:33,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:33,598 INFO L225 Difference]: With dead ends: 1582 [2022-01-18 14:07:33,598 INFO L226 Difference]: Without dead ends: 1369 [2022-01-18 14:07:33,599 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:33,599 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 70 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 673 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:33,599 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 311 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 673 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:33,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1369 states. [2022-01-18 14:07:33,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1369 to 1275. [2022-01-18 14:07:33,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1275 states, 1274 states have (on average 2.740188383045526) internal successors, (3491), 1274 states have internal predecessors, (3491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:33,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1275 states to 1275 states and 3491 transitions. [2022-01-18 14:07:33,611 INFO L78 Accepts]: Start accepts. Automaton has 1275 states and 3491 transitions. Word has length 26 [2022-01-18 14:07:33,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:33,611 INFO L470 AbstractCegarLoop]: Abstraction has 1275 states and 3491 transitions. [2022-01-18 14:07:33,611 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:33,611 INFO L276 IsEmpty]: Start isEmpty. Operand 1275 states and 3491 transitions. [2022-01-18 14:07:33,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:33,619 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:33,619 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:33,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable242 [2022-01-18 14:07:33,619 INFO L402 AbstractCegarLoop]: === Iteration 244 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:33,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:33,619 INFO L85 PathProgramCache]: Analyzing trace with hash -591085043, now seen corresponding path program 242 times [2022-01-18 14:07:33,619 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:33,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380919693] [2022-01-18 14:07:33,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:33,620 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:33,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:33,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:33,677 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:33,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380919693] [2022-01-18 14:07:33,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380919693] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:33,677 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:33,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:33,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851856615] [2022-01-18 14:07:33,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:33,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:33,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:33,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:33,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:33,678 INFO L87 Difference]: Start difference. First operand 1275 states and 3491 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:33,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:33,873 INFO L93 Difference]: Finished difference Result 1460 states and 3935 transitions. [2022-01-18 14:07:33,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:33,873 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:33,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:33,875 INFO L225 Difference]: With dead ends: 1460 [2022-01-18 14:07:33,875 INFO L226 Difference]: Without dead ends: 1367 [2022-01-18 14:07:33,875 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:33,875 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 59 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 650 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:33,875 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 286 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 650 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:33,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1367 states. [2022-01-18 14:07:33,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1367 to 1275. [2022-01-18 14:07:33,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1275 states, 1274 states have (on average 2.7370486656200943) internal successors, (3487), 1274 states have internal predecessors, (3487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:33,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1275 states to 1275 states and 3487 transitions. [2022-01-18 14:07:33,887 INFO L78 Accepts]: Start accepts. Automaton has 1275 states and 3487 transitions. Word has length 26 [2022-01-18 14:07:33,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:33,887 INFO L470 AbstractCegarLoop]: Abstraction has 1275 states and 3487 transitions. [2022-01-18 14:07:33,887 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:33,887 INFO L276 IsEmpty]: Start isEmpty. Operand 1275 states and 3487 transitions. [2022-01-18 14:07:33,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:33,888 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:33,888 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:33,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable243 [2022-01-18 14:07:33,888 INFO L402 AbstractCegarLoop]: === Iteration 245 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:33,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:33,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1992540749, now seen corresponding path program 243 times [2022-01-18 14:07:33,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:33,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129293911] [2022-01-18 14:07:33,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:33,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:33,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:33,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:33,946 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:33,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129293911] [2022-01-18 14:07:33,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129293911] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:33,946 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:33,946 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:33,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194932113] [2022-01-18 14:07:33,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:33,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:33,946 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:33,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:33,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:33,946 INFO L87 Difference]: Start difference. First operand 1275 states and 3487 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:34,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:34,163 INFO L93 Difference]: Finished difference Result 1471 states and 3964 transitions. [2022-01-18 14:07:34,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:34,163 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:34,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:34,164 INFO L225 Difference]: With dead ends: 1471 [2022-01-18 14:07:34,165 INFO L226 Difference]: Without dead ends: 1362 [2022-01-18 14:07:34,165 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:34,165 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 64 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:34,165 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 286 Invalid, 722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 714 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:34,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1362 states. [2022-01-18 14:07:34,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1362 to 1290. [2022-01-18 14:07:34,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1290 states, 1289 states have (on average 2.7331264546159812) internal successors, (3523), 1289 states have internal predecessors, (3523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:34,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1290 states to 1290 states and 3523 transitions. [2022-01-18 14:07:34,177 INFO L78 Accepts]: Start accepts. Automaton has 1290 states and 3523 transitions. Word has length 26 [2022-01-18 14:07:34,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:34,177 INFO L470 AbstractCegarLoop]: Abstraction has 1290 states and 3523 transitions. [2022-01-18 14:07:34,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:34,177 INFO L276 IsEmpty]: Start isEmpty. Operand 1290 states and 3523 transitions. [2022-01-18 14:07:34,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:34,178 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:34,178 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:34,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable244 [2022-01-18 14:07:34,178 INFO L402 AbstractCegarLoop]: === Iteration 246 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:34,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:34,178 INFO L85 PathProgramCache]: Analyzing trace with hash -1873244311, now seen corresponding path program 244 times [2022-01-18 14:07:34,178 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:34,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883111422] [2022-01-18 14:07:34,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:34,179 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:34,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:34,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:34,238 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:34,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883111422] [2022-01-18 14:07:34,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883111422] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:34,238 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:34,238 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:34,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819848230] [2022-01-18 14:07:34,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:34,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:34,239 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:34,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:34,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:34,239 INFO L87 Difference]: Start difference. First operand 1290 states and 3523 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:34,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:34,457 INFO L93 Difference]: Finished difference Result 1456 states and 3922 transitions. [2022-01-18 14:07:34,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:34,457 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:34,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:34,459 INFO L225 Difference]: With dead ends: 1456 [2022-01-18 14:07:34,459 INFO L226 Difference]: Without dead ends: 1294 [2022-01-18 14:07:34,459 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:34,459 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 66 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 723 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:34,459 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 289 Invalid, 733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 723 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:34,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1294 states. [2022-01-18 14:07:34,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1294 to 1245. [2022-01-18 14:07:34,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1245 states, 1244 states have (on average 2.741961414790997) internal successors, (3411), 1244 states have internal predecessors, (3411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:34,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1245 states to 1245 states and 3411 transitions. [2022-01-18 14:07:34,474 INFO L78 Accepts]: Start accepts. Automaton has 1245 states and 3411 transitions. Word has length 26 [2022-01-18 14:07:34,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:34,474 INFO L470 AbstractCegarLoop]: Abstraction has 1245 states and 3411 transitions. [2022-01-18 14:07:34,474 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:34,474 INFO L276 IsEmpty]: Start isEmpty. Operand 1245 states and 3411 transitions. [2022-01-18 14:07:34,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:34,475 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:34,475 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:34,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable245 [2022-01-18 14:07:34,476 INFO L402 AbstractCegarLoop]: === Iteration 247 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:34,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:34,476 INFO L85 PathProgramCache]: Analyzing trace with hash 842799917, now seen corresponding path program 245 times [2022-01-18 14:07:34,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:34,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801610331] [2022-01-18 14:07:34,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:34,476 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:34,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:34,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:34,528 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:34,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801610331] [2022-01-18 14:07:34,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801610331] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:34,528 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:34,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:07:34,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746031216] [2022-01-18 14:07:34,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:34,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:07:34,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:34,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:07:34,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:34,529 INFO L87 Difference]: Start difference. First operand 1245 states and 3411 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:34,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:34,705 INFO L93 Difference]: Finished difference Result 1475 states and 3997 transitions. [2022-01-18 14:07:34,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:07:34,705 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:34,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:34,707 INFO L225 Difference]: With dead ends: 1475 [2022-01-18 14:07:34,707 INFO L226 Difference]: Without dead ends: 1320 [2022-01-18 14:07:34,707 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:34,707 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 55 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 551 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:34,707 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 225 Invalid, 559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 551 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:34,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1320 states. [2022-01-18 14:07:34,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1320 to 1284. [2022-01-18 14:07:34,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1284 states, 1283 states have (on average 2.7217459080280593) internal successors, (3492), 1283 states have internal predecessors, (3492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:34,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1284 states to 1284 states and 3492 transitions. [2022-01-18 14:07:34,719 INFO L78 Accepts]: Start accepts. Automaton has 1284 states and 3492 transitions. Word has length 26 [2022-01-18 14:07:34,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:34,720 INFO L470 AbstractCegarLoop]: Abstraction has 1284 states and 3492 transitions. [2022-01-18 14:07:34,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:34,720 INFO L276 IsEmpty]: Start isEmpty. Operand 1284 states and 3492 transitions. [2022-01-18 14:07:34,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:34,721 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:34,721 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:34,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable246 [2022-01-18 14:07:34,721 INFO L402 AbstractCegarLoop]: === Iteration 248 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:34,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:34,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1273469201, now seen corresponding path program 246 times [2022-01-18 14:07:34,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:34,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249621428] [2022-01-18 14:07:34,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:34,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:34,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:34,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:34,785 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:34,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249621428] [2022-01-18 14:07:34,785 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249621428] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:34,785 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:34,785 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:34,785 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498383121] [2022-01-18 14:07:34,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:34,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:34,785 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:34,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:34,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:34,786 INFO L87 Difference]: Start difference. First operand 1284 states and 3492 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:34,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:34,998 INFO L93 Difference]: Finished difference Result 1451 states and 3899 transitions. [2022-01-18 14:07:34,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:34,998 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:34,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:35,000 INFO L225 Difference]: With dead ends: 1451 [2022-01-18 14:07:35,000 INFO L226 Difference]: Without dead ends: 1310 [2022-01-18 14:07:35,000 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:35,000 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 61 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:35,000 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 278 Invalid, 697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:35,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1310 states. [2022-01-18 14:07:35,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1310 to 1258. [2022-01-18 14:07:35,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1258 states, 1257 states have (on average 2.720763723150358) internal successors, (3420), 1257 states have internal predecessors, (3420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:35,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1258 states to 1258 states and 3420 transitions. [2022-01-18 14:07:35,012 INFO L78 Accepts]: Start accepts. Automaton has 1258 states and 3420 transitions. Word has length 26 [2022-01-18 14:07:35,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:35,012 INFO L470 AbstractCegarLoop]: Abstraction has 1258 states and 3420 transitions. [2022-01-18 14:07:35,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:35,012 INFO L276 IsEmpty]: Start isEmpty. Operand 1258 states and 3420 transitions. [2022-01-18 14:07:35,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:35,013 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:35,013 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:35,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable247 [2022-01-18 14:07:35,014 INFO L402 AbstractCegarLoop]: === Iteration 249 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:35,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:35,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1505149813, now seen corresponding path program 247 times [2022-01-18 14:07:35,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:35,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240877044] [2022-01-18 14:07:35,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:35,014 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:35,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:35,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:35,074 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:35,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240877044] [2022-01-18 14:07:35,074 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240877044] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:35,074 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:35,074 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:35,074 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323362236] [2022-01-18 14:07:35,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:35,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:35,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:35,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:35,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:35,074 INFO L87 Difference]: Start difference. First operand 1258 states and 3420 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:35,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:35,274 INFO L93 Difference]: Finished difference Result 1416 states and 3802 transitions. [2022-01-18 14:07:35,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:35,274 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:35,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:35,276 INFO L225 Difference]: With dead ends: 1416 [2022-01-18 14:07:35,276 INFO L226 Difference]: Without dead ends: 1335 [2022-01-18 14:07:35,276 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:35,276 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 49 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 641 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:35,276 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 253 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 641 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:35,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1335 states. [2022-01-18 14:07:35,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1335 to 1260. [2022-01-18 14:07:35,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1260 states, 1259 states have (on average 2.722001588562351) internal successors, (3427), 1259 states have internal predecessors, (3427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:35,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1260 states to 1260 states and 3427 transitions. [2022-01-18 14:07:35,287 INFO L78 Accepts]: Start accepts. Automaton has 1260 states and 3427 transitions. Word has length 26 [2022-01-18 14:07:35,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:35,287 INFO L470 AbstractCegarLoop]: Abstraction has 1260 states and 3427 transitions. [2022-01-18 14:07:35,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:35,287 INFO L276 IsEmpty]: Start isEmpty. Operand 1260 states and 3427 transitions. [2022-01-18 14:07:35,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:35,289 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:35,289 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:35,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable248 [2022-01-18 14:07:35,289 INFO L402 AbstractCegarLoop]: === Iteration 250 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:35,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:35,289 INFO L85 PathProgramCache]: Analyzing trace with hash 853516557, now seen corresponding path program 248 times [2022-01-18 14:07:35,289 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:35,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275984930] [2022-01-18 14:07:35,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:35,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:35,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:35,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:35,350 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:35,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275984930] [2022-01-18 14:07:35,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275984930] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:35,351 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:35,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:35,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418839767] [2022-01-18 14:07:35,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:35,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:35,351 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:35,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:35,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:35,351 INFO L87 Difference]: Start difference. First operand 1260 states and 3427 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:35,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:35,562 INFO L93 Difference]: Finished difference Result 1422 states and 3809 transitions. [2022-01-18 14:07:35,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:35,562 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:35,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:35,564 INFO L225 Difference]: With dead ends: 1422 [2022-01-18 14:07:35,564 INFO L226 Difference]: Without dead ends: 1302 [2022-01-18 14:07:35,564 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:35,564 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 54 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 684 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:35,564 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 259 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 684 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:35,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1302 states. [2022-01-18 14:07:35,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1302 to 1256. [2022-01-18 14:07:35,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1256 states, 1255 states have (on average 2.7203187250996015) internal successors, (3414), 1255 states have internal predecessors, (3414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:35,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1256 states to 1256 states and 3414 transitions. [2022-01-18 14:07:35,576 INFO L78 Accepts]: Start accepts. Automaton has 1256 states and 3414 transitions. Word has length 26 [2022-01-18 14:07:35,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:35,576 INFO L470 AbstractCegarLoop]: Abstraction has 1256 states and 3414 transitions. [2022-01-18 14:07:35,576 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:35,576 INFO L276 IsEmpty]: Start isEmpty. Operand 1256 states and 3414 transitions. [2022-01-18 14:07:35,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:35,578 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:35,578 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:35,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable249 [2022-01-18 14:07:35,578 INFO L402 AbstractCegarLoop]: === Iteration 251 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:35,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:35,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1220888941, now seen corresponding path program 249 times [2022-01-18 14:07:35,578 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:35,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2841327] [2022-01-18 14:07:35,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:35,578 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:35,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:35,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:35,637 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:35,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2841327] [2022-01-18 14:07:35,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2841327] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:35,637 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:35,637 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:35,637 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279156767] [2022-01-18 14:07:35,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:35,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:35,638 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:35,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:35,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:35,638 INFO L87 Difference]: Start difference. First operand 1256 states and 3414 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:35,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:35,835 INFO L93 Difference]: Finished difference Result 1383 states and 3716 transitions. [2022-01-18 14:07:35,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:35,835 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:35,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:35,837 INFO L225 Difference]: With dead ends: 1383 [2022-01-18 14:07:35,837 INFO L226 Difference]: Without dead ends: 1292 [2022-01-18 14:07:35,837 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:35,837 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 48 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:35,837 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 257 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:35,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1292 states. [2022-01-18 14:07:35,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1292 to 1244. [2022-01-18 14:07:35,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1244 states, 1243 states have (on average 2.7280772325020113) internal successors, (3391), 1243 states have internal predecessors, (3391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:35,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1244 states to 1244 states and 3391 transitions. [2022-01-18 14:07:35,848 INFO L78 Accepts]: Start accepts. Automaton has 1244 states and 3391 transitions. Word has length 26 [2022-01-18 14:07:35,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:35,848 INFO L470 AbstractCegarLoop]: Abstraction has 1244 states and 3391 transitions. [2022-01-18 14:07:35,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:35,848 INFO L276 IsEmpty]: Start isEmpty. Operand 1244 states and 3391 transitions. [2022-01-18 14:07:35,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:35,849 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:35,850 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:35,850 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable250 [2022-01-18 14:07:35,850 INFO L402 AbstractCegarLoop]: === Iteration 252 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:35,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:35,850 INFO L85 PathProgramCache]: Analyzing trace with hash -331159793, now seen corresponding path program 250 times [2022-01-18 14:07:35,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:35,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024808184] [2022-01-18 14:07:35,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:35,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:35,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:35,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:35,901 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:35,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024808184] [2022-01-18 14:07:35,901 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024808184] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:35,901 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:35,901 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:07:35,901 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214146139] [2022-01-18 14:07:35,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:35,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:07:35,901 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:35,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:07:35,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:35,901 INFO L87 Difference]: Start difference. First operand 1244 states and 3391 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:36,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:36,078 INFO L93 Difference]: Finished difference Result 1483 states and 4005 transitions. [2022-01-18 14:07:36,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:07:36,078 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:36,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:36,080 INFO L225 Difference]: With dead ends: 1483 [2022-01-18 14:07:36,080 INFO L226 Difference]: Without dead ends: 1331 [2022-01-18 14:07:36,080 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:36,080 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 57 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:36,080 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 223 Invalid, 574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 568 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:36,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1331 states. [2022-01-18 14:07:36,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1331 to 1273. [2022-01-18 14:07:36,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1273 states, 1272 states have (on average 2.7114779874213837) internal successors, (3449), 1272 states have internal predecessors, (3449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:36,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1273 states to 1273 states and 3449 transitions. [2022-01-18 14:07:36,092 INFO L78 Accepts]: Start accepts. Automaton has 1273 states and 3449 transitions. Word has length 26 [2022-01-18 14:07:36,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:36,092 INFO L470 AbstractCegarLoop]: Abstraction has 1273 states and 3449 transitions. [2022-01-18 14:07:36,092 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:36,092 INFO L276 IsEmpty]: Start isEmpty. Operand 1273 states and 3449 transitions. [2022-01-18 14:07:36,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:36,093 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:36,093 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:36,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable251 [2022-01-18 14:07:36,094 INFO L402 AbstractCegarLoop]: === Iteration 253 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:36,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:36,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1847538385, now seen corresponding path program 251 times [2022-01-18 14:07:36,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:36,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672044960] [2022-01-18 14:07:36,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:36,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:36,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:36,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:36,152 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:36,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672044960] [2022-01-18 14:07:36,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672044960] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:36,152 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:36,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:36,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206012423] [2022-01-18 14:07:36,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:36,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:36,153 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:36,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:36,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:36,153 INFO L87 Difference]: Start difference. First operand 1273 states and 3449 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:36,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:36,363 INFO L93 Difference]: Finished difference Result 1455 states and 3899 transitions. [2022-01-18 14:07:36,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:36,363 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:36,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:36,365 INFO L225 Difference]: With dead ends: 1455 [2022-01-18 14:07:36,365 INFO L226 Difference]: Without dead ends: 1330 [2022-01-18 14:07:36,365 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:36,365 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 61 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 688 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:36,365 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 276 Invalid, 698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 688 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:36,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1330 states. [2022-01-18 14:07:36,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1330 to 1247. [2022-01-18 14:07:36,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1247 states, 1246 states have (on average 2.718298555377207) internal successors, (3387), 1246 states have internal predecessors, (3387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:36,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1247 states to 1247 states and 3387 transitions. [2022-01-18 14:07:36,377 INFO L78 Accepts]: Start accepts. Automaton has 1247 states and 3387 transitions. Word has length 26 [2022-01-18 14:07:36,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:36,377 INFO L470 AbstractCegarLoop]: Abstraction has 1247 states and 3387 transitions. [2022-01-18 14:07:36,377 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:36,377 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states and 3387 transitions. [2022-01-18 14:07:36,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:36,378 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:36,378 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:36,378 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable252 [2022-01-18 14:07:36,378 INFO L402 AbstractCegarLoop]: === Iteration 254 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:36,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:36,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1033646385, now seen corresponding path program 252 times [2022-01-18 14:07:36,379 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:36,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159039006] [2022-01-18 14:07:36,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:36,379 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:36,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:36,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:36,437 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:36,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159039006] [2022-01-18 14:07:36,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159039006] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:36,437 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:36,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:36,437 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229410249] [2022-01-18 14:07:36,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:36,437 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:36,437 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:36,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:36,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:36,438 INFO L87 Difference]: Start difference. First operand 1247 states and 3387 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:36,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:36,643 INFO L93 Difference]: Finished difference Result 1414 states and 3792 transitions. [2022-01-18 14:07:36,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:36,643 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:36,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:36,645 INFO L225 Difference]: With dead ends: 1414 [2022-01-18 14:07:36,645 INFO L226 Difference]: Without dead ends: 1315 [2022-01-18 14:07:36,645 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:36,645 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 60 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 682 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:36,645 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 288 Invalid, 692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 682 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:36,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1315 states. [2022-01-18 14:07:36,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1315 to 1253. [2022-01-18 14:07:36,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1253 states, 1252 states have (on average 2.713258785942492) internal successors, (3397), 1252 states have internal predecessors, (3397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:36,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1253 states to 1253 states and 3397 transitions. [2022-01-18 14:07:36,657 INFO L78 Accepts]: Start accepts. Automaton has 1253 states and 3397 transitions. Word has length 26 [2022-01-18 14:07:36,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:36,657 INFO L470 AbstractCegarLoop]: Abstraction has 1253 states and 3397 transitions. [2022-01-18 14:07:36,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:36,657 INFO L276 IsEmpty]: Start isEmpty. Operand 1253 states and 3397 transitions. [2022-01-18 14:07:36,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:36,658 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:36,658 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:36,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable253 [2022-01-18 14:07:36,658 INFO L402 AbstractCegarLoop]: === Iteration 255 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:36,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:36,659 INFO L85 PathProgramCache]: Analyzing trace with hash -534220271, now seen corresponding path program 253 times [2022-01-18 14:07:36,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:36,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19711308] [2022-01-18 14:07:36,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:36,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:36,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:36,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:36,718 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:36,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19711308] [2022-01-18 14:07:36,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19711308] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:36,718 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:36,718 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:36,718 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879394640] [2022-01-18 14:07:36,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:36,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:36,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:36,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:36,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:36,718 INFO L87 Difference]: Start difference. First operand 1253 states and 3397 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:36,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:36,917 INFO L93 Difference]: Finished difference Result 1410 states and 3784 transitions. [2022-01-18 14:07:36,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:36,917 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:36,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:36,919 INFO L225 Difference]: With dead ends: 1410 [2022-01-18 14:07:36,919 INFO L226 Difference]: Without dead ends: 1329 [2022-01-18 14:07:36,919 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:36,919 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 52 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 653 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:36,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 249 Invalid, 661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 653 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:36,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1329 states. [2022-01-18 14:07:36,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1329 to 1256. [2022-01-18 14:07:36,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1256 states, 1255 states have (on average 2.7155378486055777) internal successors, (3408), 1255 states have internal predecessors, (3408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:36,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1256 states to 1256 states and 3408 transitions. [2022-01-18 14:07:36,931 INFO L78 Accepts]: Start accepts. Automaton has 1256 states and 3408 transitions. Word has length 26 [2022-01-18 14:07:36,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:36,931 INFO L470 AbstractCegarLoop]: Abstraction has 1256 states and 3408 transitions. [2022-01-18 14:07:36,931 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:36,931 INFO L276 IsEmpty]: Start isEmpty. Operand 1256 states and 3408 transitions. [2022-01-18 14:07:36,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:36,932 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:36,932 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:36,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable254 [2022-01-18 14:07:36,933 INFO L402 AbstractCegarLoop]: === Iteration 256 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:36,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:36,933 INFO L85 PathProgramCache]: Analyzing trace with hash 2049405521, now seen corresponding path program 254 times [2022-01-18 14:07:36,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:36,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827807881] [2022-01-18 14:07:36,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:36,933 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:36,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:36,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:36,996 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:37,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827807881] [2022-01-18 14:07:37,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827807881] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:37,003 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:37,004 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:37,004 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435276895] [2022-01-18 14:07:37,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:37,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:37,004 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:37,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:37,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:37,005 INFO L87 Difference]: Start difference. First operand 1256 states and 3408 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:37,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:37,224 INFO L93 Difference]: Finished difference Result 1435 states and 3835 transitions. [2022-01-18 14:07:37,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:37,224 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:37,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:37,226 INFO L225 Difference]: With dead ends: 1435 [2022-01-18 14:07:37,226 INFO L226 Difference]: Without dead ends: 1329 [2022-01-18 14:07:37,226 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:37,226 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 57 mSDsluCounter, 497 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:37,226 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 255 Invalid, 723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:37,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1329 states. [2022-01-18 14:07:37,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1329 to 1253. [2022-01-18 14:07:37,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1253 states, 1252 states have (on average 2.713258785942492) internal successors, (3397), 1252 states have internal predecessors, (3397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:37,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1253 states to 1253 states and 3397 transitions. [2022-01-18 14:07:37,239 INFO L78 Accepts]: Start accepts. Automaton has 1253 states and 3397 transitions. Word has length 26 [2022-01-18 14:07:37,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:37,239 INFO L470 AbstractCegarLoop]: Abstraction has 1253 states and 3397 transitions. [2022-01-18 14:07:37,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:37,239 INFO L276 IsEmpty]: Start isEmpty. Operand 1253 states and 3397 transitions. [2022-01-18 14:07:37,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:37,240 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:37,240 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:37,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable255 [2022-01-18 14:07:37,240 INFO L402 AbstractCegarLoop]: === Iteration 257 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:37,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:37,240 INFO L85 PathProgramCache]: Analyzing trace with hash 386355695, now seen corresponding path program 255 times [2022-01-18 14:07:37,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:37,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378734360] [2022-01-18 14:07:37,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:37,241 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:37,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:37,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:37,304 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:37,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378734360] [2022-01-18 14:07:37,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378734360] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:37,304 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:37,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:37,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117827157] [2022-01-18 14:07:37,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:37,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:37,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:37,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:37,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:37,305 INFO L87 Difference]: Start difference. First operand 1253 states and 3397 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:37,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:37,502 INFO L93 Difference]: Finished difference Result 1387 states and 3720 transitions. [2022-01-18 14:07:37,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:37,502 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:37,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:37,504 INFO L225 Difference]: With dead ends: 1387 [2022-01-18 14:07:37,504 INFO L226 Difference]: Without dead ends: 1291 [2022-01-18 14:07:37,504 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:37,505 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 52 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 650 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:37,505 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 251 Invalid, 658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 650 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:37,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1291 states. [2022-01-18 14:07:37,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1291 to 1238. [2022-01-18 14:07:37,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1238 states, 1237 states have (on average 2.719482619240097) internal successors, (3364), 1237 states have internal predecessors, (3364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:37,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1238 states to 1238 states and 3364 transitions. [2022-01-18 14:07:37,516 INFO L78 Accepts]: Start accepts. Automaton has 1238 states and 3364 transitions. Word has length 26 [2022-01-18 14:07:37,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:37,516 INFO L470 AbstractCegarLoop]: Abstraction has 1238 states and 3364 transitions. [2022-01-18 14:07:37,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:37,516 INFO L276 IsEmpty]: Start isEmpty. Operand 1238 states and 3364 transitions. [2022-01-18 14:07:37,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:37,517 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:37,517 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:37,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable256 [2022-01-18 14:07:37,518 INFO L402 AbstractCegarLoop]: === Iteration 258 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:37,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:37,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1058325163, now seen corresponding path program 256 times [2022-01-18 14:07:37,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:37,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435254824] [2022-01-18 14:07:37,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:37,518 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:37,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:37,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:37,573 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:37,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435254824] [2022-01-18 14:07:37,573 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435254824] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:37,573 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:37,573 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:07:37,573 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870410030] [2022-01-18 14:07:37,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:37,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:07:37,574 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:37,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:07:37,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:37,574 INFO L87 Difference]: Start difference. First operand 1238 states and 3364 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:37,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:37,723 INFO L93 Difference]: Finished difference Result 1442 states and 3911 transitions. [2022-01-18 14:07:37,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:07:37,724 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:37,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:37,725 INFO L225 Difference]: With dead ends: 1442 [2022-01-18 14:07:37,725 INFO L226 Difference]: Without dead ends: 1357 [2022-01-18 14:07:37,726 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:37,726 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 43 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:37,726 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 197 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 14:07:37,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1357 states. [2022-01-18 14:07:37,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1357 to 1252. [2022-01-18 14:07:37,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1252 states, 1251 states have (on average 2.7194244604316546) internal successors, (3402), 1251 states have internal predecessors, (3402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:37,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1252 states to 1252 states and 3402 transitions. [2022-01-18 14:07:37,738 INFO L78 Accepts]: Start accepts. Automaton has 1252 states and 3402 transitions. Word has length 26 [2022-01-18 14:07:37,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:37,738 INFO L470 AbstractCegarLoop]: Abstraction has 1252 states and 3402 transitions. [2022-01-18 14:07:37,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:37,738 INFO L276 IsEmpty]: Start isEmpty. Operand 1252 states and 3402 transitions. [2022-01-18 14:07:37,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:37,739 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:37,739 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:37,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable257 [2022-01-18 14:07:37,739 INFO L402 AbstractCegarLoop]: === Iteration 259 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:37,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:37,739 INFO L85 PathProgramCache]: Analyzing trace with hash -510603379, now seen corresponding path program 257 times [2022-01-18 14:07:37,739 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:37,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788833776] [2022-01-18 14:07:37,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:37,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:37,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:37,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:37,803 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:37,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788833776] [2022-01-18 14:07:37,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788833776] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:37,803 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:37,803 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:07:37,803 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861822806] [2022-01-18 14:07:37,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:37,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:07:37,803 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:37,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:07:37,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:37,803 INFO L87 Difference]: Start difference. First operand 1252 states and 3402 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:37,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:37,963 INFO L93 Difference]: Finished difference Result 1475 states and 4004 transitions. [2022-01-18 14:07:37,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:07:37,964 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:37,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:37,965 INFO L225 Difference]: With dead ends: 1475 [2022-01-18 14:07:37,965 INFO L226 Difference]: Without dead ends: 1382 [2022-01-18 14:07:37,965 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:37,966 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 44 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:37,966 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 202 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 512 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:37,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1382 states. [2022-01-18 14:07:37,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1382 to 1238. [2022-01-18 14:07:37,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1238 states, 1237 states have (on average 2.7178658043654003) internal successors, (3362), 1237 states have internal predecessors, (3362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:37,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1238 states to 1238 states and 3362 transitions. [2022-01-18 14:07:37,977 INFO L78 Accepts]: Start accepts. Automaton has 1238 states and 3362 transitions. Word has length 26 [2022-01-18 14:07:37,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:37,977 INFO L470 AbstractCegarLoop]: Abstraction has 1238 states and 3362 transitions. [2022-01-18 14:07:37,977 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:37,977 INFO L276 IsEmpty]: Start isEmpty. Operand 1238 states and 3362 transitions. [2022-01-18 14:07:37,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:37,978 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:37,979 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:37,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable258 [2022-01-18 14:07:37,979 INFO L402 AbstractCegarLoop]: === Iteration 260 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:37,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:37,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1568050315, now seen corresponding path program 258 times [2022-01-18 14:07:37,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:37,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877008485] [2022-01-18 14:07:37,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:37,979 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:37,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:38,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:38,045 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:38,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877008485] [2022-01-18 14:07:38,045 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877008485] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:38,046 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:38,046 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:38,046 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300410915] [2022-01-18 14:07:38,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:38,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:38,046 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:38,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:38,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:38,046 INFO L87 Difference]: Start difference. First operand 1238 states and 3362 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:38,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:38,237 INFO L93 Difference]: Finished difference Result 1375 states and 3707 transitions. [2022-01-18 14:07:38,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:38,237 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:38,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:38,239 INFO L225 Difference]: With dead ends: 1375 [2022-01-18 14:07:38,239 INFO L226 Difference]: Without dead ends: 1294 [2022-01-18 14:07:38,239 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:38,239 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 43 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 622 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:38,239 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 217 Invalid, 630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 622 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:38,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1294 states. [2022-01-18 14:07:38,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1294 to 1242. [2022-01-18 14:07:38,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1242 states, 1241 states have (on average 2.721192586623691) internal successors, (3377), 1241 states have internal predecessors, (3377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:38,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1242 states to 1242 states and 3377 transitions. [2022-01-18 14:07:38,250 INFO L78 Accepts]: Start accepts. Automaton has 1242 states and 3377 transitions. Word has length 26 [2022-01-18 14:07:38,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:38,250 INFO L470 AbstractCegarLoop]: Abstraction has 1242 states and 3377 transitions. [2022-01-18 14:07:38,250 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:38,250 INFO L276 IsEmpty]: Start isEmpty. Operand 1242 states and 3377 transitions. [2022-01-18 14:07:38,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:38,252 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:38,252 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:38,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable259 [2022-01-18 14:07:38,252 INFO L402 AbstractCegarLoop]: === Iteration 261 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:38,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:38,252 INFO L85 PathProgramCache]: Analyzing trace with hash -368250611, now seen corresponding path program 259 times [2022-01-18 14:07:38,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:38,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818800780] [2022-01-18 14:07:38,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:38,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:38,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:38,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:38,311 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:38,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818800780] [2022-01-18 14:07:38,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818800780] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:38,311 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:38,311 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:38,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329545093] [2022-01-18 14:07:38,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:38,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:38,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:38,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:38,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:38,311 INFO L87 Difference]: Start difference. First operand 1242 states and 3377 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:38,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:38,518 INFO L93 Difference]: Finished difference Result 1385 states and 3725 transitions. [2022-01-18 14:07:38,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:38,518 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:38,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:38,520 INFO L225 Difference]: With dead ends: 1385 [2022-01-18 14:07:38,520 INFO L226 Difference]: Without dead ends: 1288 [2022-01-18 14:07:38,520 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:38,520 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 48 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 669 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:38,520 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 221 Invalid, 677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 669 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:38,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1288 states. [2022-01-18 14:07:38,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1288 to 1243. [2022-01-18 14:07:38,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1243 states, 1242 states have (on average 2.7206119162640903) internal successors, (3379), 1242 states have internal predecessors, (3379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:38,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1243 states to 1243 states and 3379 transitions. [2022-01-18 14:07:38,531 INFO L78 Accepts]: Start accepts. Automaton has 1243 states and 3379 transitions. Word has length 26 [2022-01-18 14:07:38,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:38,531 INFO L470 AbstractCegarLoop]: Abstraction has 1243 states and 3379 transitions. [2022-01-18 14:07:38,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:38,531 INFO L276 IsEmpty]: Start isEmpty. Operand 1243 states and 3379 transitions. [2022-01-18 14:07:38,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:38,533 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:38,533 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:38,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable260 [2022-01-18 14:07:38,533 INFO L402 AbstractCegarLoop]: === Iteration 262 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:38,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:38,533 INFO L85 PathProgramCache]: Analyzing trace with hash -878227, now seen corresponding path program 260 times [2022-01-18 14:07:38,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:38,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681780814] [2022-01-18 14:07:38,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:38,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:38,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:38,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:38,616 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:38,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681780814] [2022-01-18 14:07:38,616 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681780814] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:38,616 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:38,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:38,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737427824] [2022-01-18 14:07:38,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:38,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:38,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:38,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:38,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:38,616 INFO L87 Difference]: Start difference. First operand 1243 states and 3379 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:38,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:38,808 INFO L93 Difference]: Finished difference Result 1363 states and 3672 transitions. [2022-01-18 14:07:38,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:38,809 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:38,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:38,810 INFO L225 Difference]: With dead ends: 1363 [2022-01-18 14:07:38,811 INFO L226 Difference]: Without dead ends: 1274 [2022-01-18 14:07:38,811 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:38,811 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 42 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:38,811 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 221 Invalid, 626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 616 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:38,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1274 states. [2022-01-18 14:07:38,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1274 to 1247. [2022-01-18 14:07:38,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1247 states, 1246 states have (on average 2.720706260032103) internal successors, (3390), 1246 states have internal predecessors, (3390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:38,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1247 states to 1247 states and 3390 transitions. [2022-01-18 14:07:38,822 INFO L78 Accepts]: Start accepts. Automaton has 1247 states and 3390 transitions. Word has length 26 [2022-01-18 14:07:38,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:38,822 INFO L470 AbstractCegarLoop]: Abstraction has 1247 states and 3390 transitions. [2022-01-18 14:07:38,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:38,822 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states and 3390 transitions. [2022-01-18 14:07:38,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:38,824 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:38,824 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:38,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable261 [2022-01-18 14:07:38,824 INFO L402 AbstractCegarLoop]: === Iteration 263 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:38,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:38,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1670741515, now seen corresponding path program 261 times [2022-01-18 14:07:38,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:38,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812873285] [2022-01-18 14:07:38,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:38,824 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:38,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:38,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:38,884 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:38,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812873285] [2022-01-18 14:07:38,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812873285] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:38,884 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:38,885 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:38,885 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819051095] [2022-01-18 14:07:38,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:38,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:38,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:38,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:38,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:38,885 INFO L87 Difference]: Start difference. First operand 1247 states and 3390 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:39,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:39,092 INFO L93 Difference]: Finished difference Result 1378 states and 3704 transitions. [2022-01-18 14:07:39,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:39,093 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:39,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:39,095 INFO L225 Difference]: With dead ends: 1378 [2022-01-18 14:07:39,095 INFO L226 Difference]: Without dead ends: 1269 [2022-01-18 14:07:39,095 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:39,095 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 48 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:39,095 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 227 Invalid, 680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 668 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:39,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1269 states. [2022-01-18 14:07:39,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1269 to 1243. [2022-01-18 14:07:39,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1243 states, 1242 states have (on average 2.718196457326892) internal successors, (3376), 1242 states have internal predecessors, (3376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:39,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1243 states to 1243 states and 3376 transitions. [2022-01-18 14:07:39,106 INFO L78 Accepts]: Start accepts. Automaton has 1243 states and 3376 transitions. Word has length 26 [2022-01-18 14:07:39,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:39,106 INFO L470 AbstractCegarLoop]: Abstraction has 1243 states and 3376 transitions. [2022-01-18 14:07:39,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:39,106 INFO L276 IsEmpty]: Start isEmpty. Operand 1243 states and 3376 transitions. [2022-01-18 14:07:39,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:39,108 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:39,108 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:39,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable262 [2022-01-18 14:07:39,108 INFO L402 AbstractCegarLoop]: === Iteration 264 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:39,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:39,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1361242349, now seen corresponding path program 262 times [2022-01-18 14:07:39,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:39,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687218416] [2022-01-18 14:07:39,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:39,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:39,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:39,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:39,168 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:39,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687218416] [2022-01-18 14:07:39,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687218416] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:39,168 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:39,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:39,168 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037390579] [2022-01-18 14:07:39,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:39,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:39,168 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:39,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:39,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:39,168 INFO L87 Difference]: Start difference. First operand 1243 states and 3376 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:39,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:39,365 INFO L93 Difference]: Finished difference Result 1384 states and 3725 transitions. [2022-01-18 14:07:39,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:39,365 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:39,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:39,366 INFO L225 Difference]: With dead ends: 1384 [2022-01-18 14:07:39,366 INFO L226 Difference]: Without dead ends: 1303 [2022-01-18 14:07:39,367 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:39,367 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 44 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 632 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:39,367 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 215 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 632 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:39,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1303 states. [2022-01-18 14:07:39,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1303 to 1245. [2022-01-18 14:07:39,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1245 states, 1244 states have (on average 2.719453376205788) internal successors, (3383), 1244 states have internal predecessors, (3383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:39,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1245 states to 1245 states and 3383 transitions. [2022-01-18 14:07:39,378 INFO L78 Accepts]: Start accepts. Automaton has 1245 states and 3383 transitions. Word has length 26 [2022-01-18 14:07:39,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:39,378 INFO L470 AbstractCegarLoop]: Abstraction has 1245 states and 3383 transitions. [2022-01-18 14:07:39,378 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:39,378 INFO L276 IsEmpty]: Start isEmpty. Operand 1245 states and 3383 transitions. [2022-01-18 14:07:39,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:39,379 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:39,379 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:39,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable263 [2022-01-18 14:07:39,379 INFO L402 AbstractCegarLoop]: === Iteration 265 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:39,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:39,380 INFO L85 PathProgramCache]: Analyzing trace with hash -575058577, now seen corresponding path program 263 times [2022-01-18 14:07:39,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:39,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122714697] [2022-01-18 14:07:39,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:39,380 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:39,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:39,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:39,439 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:39,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122714697] [2022-01-18 14:07:39,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122714697] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:39,439 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:39,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:39,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041650053] [2022-01-18 14:07:39,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:39,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:39,440 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:39,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:39,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:39,440 INFO L87 Difference]: Start difference. First operand 1245 states and 3383 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:39,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:39,650 INFO L93 Difference]: Finished difference Result 1389 states and 3727 transitions. [2022-01-18 14:07:39,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:39,650 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:39,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:39,652 INFO L225 Difference]: With dead ends: 1389 [2022-01-18 14:07:39,652 INFO L226 Difference]: Without dead ends: 1292 [2022-01-18 14:07:39,652 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:39,652 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 49 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 679 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:39,652 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 219 Invalid, 687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 679 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:39,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1292 states. [2022-01-18 14:07:39,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1292 to 1241. [2022-01-18 14:07:39,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1241 states, 1240 states have (on average 2.7161290322580647) internal successors, (3368), 1240 states have internal predecessors, (3368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:39,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1241 states to 1241 states and 3368 transitions. [2022-01-18 14:07:39,663 INFO L78 Accepts]: Start accepts. Automaton has 1241 states and 3368 transitions. Word has length 26 [2022-01-18 14:07:39,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:39,663 INFO L470 AbstractCegarLoop]: Abstraction has 1241 states and 3368 transitions. [2022-01-18 14:07:39,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:39,663 INFO L276 IsEmpty]: Start isEmpty. Operand 1241 states and 3368 transitions. [2022-01-18 14:07:39,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:39,665 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:39,665 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:39,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable264 [2022-01-18 14:07:39,665 INFO L402 AbstractCegarLoop]: === Iteration 266 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:39,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:39,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1232222099, now seen corresponding path program 264 times [2022-01-18 14:07:39,665 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:39,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869368986] [2022-01-18 14:07:39,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:39,665 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:39,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:39,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:39,724 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:39,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869368986] [2022-01-18 14:07:39,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869368986] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:39,724 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:39,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:39,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701759134] [2022-01-18 14:07:39,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:39,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:39,724 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:39,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:39,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:39,725 INFO L87 Difference]: Start difference. First operand 1241 states and 3368 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:39,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:39,923 INFO L93 Difference]: Finished difference Result 1366 states and 3673 transitions. [2022-01-18 14:07:39,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:39,924 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:39,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:39,925 INFO L225 Difference]: With dead ends: 1366 [2022-01-18 14:07:39,925 INFO L226 Difference]: Without dead ends: 1279 [2022-01-18 14:07:39,925 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:39,925 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 44 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 629 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:39,925 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 217 Invalid, 637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 629 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:39,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1279 states. [2022-01-18 14:07:39,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1279 to 1242. [2022-01-18 14:07:39,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1242 states, 1241 states have (on average 2.7147461724415796) internal successors, (3369), 1241 states have internal predecessors, (3369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:39,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1242 states to 1242 states and 3369 transitions. [2022-01-18 14:07:39,937 INFO L78 Accepts]: Start accepts. Automaton has 1242 states and 3369 transitions. Word has length 26 [2022-01-18 14:07:39,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:39,937 INFO L470 AbstractCegarLoop]: Abstraction has 1242 states and 3369 transitions. [2022-01-18 14:07:39,937 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:39,937 INFO L276 IsEmpty]: Start isEmpty. Operand 1242 states and 3369 transitions. [2022-01-18 14:07:39,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:39,938 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:39,938 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:39,938 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable265 [2022-01-18 14:07:39,938 INFO L402 AbstractCegarLoop]: === Iteration 267 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:39,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:39,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1734179275, now seen corresponding path program 265 times [2022-01-18 14:07:39,938 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:39,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619899403] [2022-01-18 14:07:39,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:39,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:39,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:39,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:39,996 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:39,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619899403] [2022-01-18 14:07:39,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619899403] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:39,996 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:39,996 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:39,997 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099694528] [2022-01-18 14:07:39,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:39,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:39,997 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:39,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:39,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:39,997 INFO L87 Difference]: Start difference. First operand 1242 states and 3369 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:40,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:40,212 INFO L93 Difference]: Finished difference Result 1386 states and 3719 transitions. [2022-01-18 14:07:40,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:40,213 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:40,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:40,214 INFO L225 Difference]: With dead ends: 1386 [2022-01-18 14:07:40,214 INFO L226 Difference]: Without dead ends: 1281 [2022-01-18 14:07:40,215 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:40,215 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 51 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 697 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 697 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:40,215 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 223 Invalid, 707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 697 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:40,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1281 states. [2022-01-18 14:07:40,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1281 to 1236. [2022-01-18 14:07:40,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1236 states, 1235 states have (on average 2.7157894736842105) internal successors, (3354), 1235 states have internal predecessors, (3354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:40,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1236 states to 1236 states and 3354 transitions. [2022-01-18 14:07:40,226 INFO L78 Accepts]: Start accepts. Automaton has 1236 states and 3354 transitions. Word has length 26 [2022-01-18 14:07:40,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:40,226 INFO L470 AbstractCegarLoop]: Abstraction has 1236 states and 3354 transitions. [2022-01-18 14:07:40,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:40,226 INFO L276 IsEmpty]: Start isEmpty. Operand 1236 states and 3354 transitions. [2022-01-18 14:07:40,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:40,228 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:40,228 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:40,228 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable266 [2022-01-18 14:07:40,228 INFO L402 AbstractCegarLoop]: === Iteration 268 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:40,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:40,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1511539919, now seen corresponding path program 266 times [2022-01-18 14:07:40,228 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:40,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974534682] [2022-01-18 14:07:40,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:40,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:40,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:40,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:40,290 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:40,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974534682] [2022-01-18 14:07:40,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974534682] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:40,290 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:40,290 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:40,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403326858] [2022-01-18 14:07:40,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:40,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:40,291 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:40,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:40,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:40,291 INFO L87 Difference]: Start difference. First operand 1236 states and 3354 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:40,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:40,476 INFO L93 Difference]: Finished difference Result 1442 states and 3908 transitions. [2022-01-18 14:07:40,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:40,477 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:40,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:40,478 INFO L225 Difference]: With dead ends: 1442 [2022-01-18 14:07:40,478 INFO L226 Difference]: Without dead ends: 1351 [2022-01-18 14:07:40,479 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:40,479 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 43 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:40,479 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 214 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 581 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:40,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1351 states. [2022-01-18 14:07:40,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1351 to 1238. [2022-01-18 14:07:40,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1238 states, 1237 states have (on average 2.7130153597413096) internal successors, (3356), 1237 states have internal predecessors, (3356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:40,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1238 states to 1238 states and 3356 transitions. [2022-01-18 14:07:40,490 INFO L78 Accepts]: Start accepts. Automaton has 1238 states and 3356 transitions. Word has length 26 [2022-01-18 14:07:40,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:40,490 INFO L470 AbstractCegarLoop]: Abstraction has 1238 states and 3356 transitions. [2022-01-18 14:07:40,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:40,490 INFO L276 IsEmpty]: Start isEmpty. Operand 1238 states and 3356 transitions. [2022-01-18 14:07:40,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:40,492 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:40,492 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:40,492 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable267 [2022-01-18 14:07:40,492 INFO L402 AbstractCegarLoop]: === Iteration 269 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:40,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:40,492 INFO L85 PathProgramCache]: Analyzing trace with hash 119395373, now seen corresponding path program 267 times [2022-01-18 14:07:40,492 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:40,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646003840] [2022-01-18 14:07:40,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:40,492 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:40,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:40,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:40,552 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:40,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646003840] [2022-01-18 14:07:40,552 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646003840] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:40,552 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:40,552 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:40,552 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734470773] [2022-01-18 14:07:40,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:40,553 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:40,553 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:40,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:40,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:40,553 INFO L87 Difference]: Start difference. First operand 1238 states and 3356 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:40,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:40,748 INFO L93 Difference]: Finished difference Result 1473 states and 3992 transitions. [2022-01-18 14:07:40,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:40,748 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:40,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:40,750 INFO L225 Difference]: With dead ends: 1473 [2022-01-18 14:07:40,750 INFO L226 Difference]: Without dead ends: 1381 [2022-01-18 14:07:40,750 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:40,750 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 44 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 624 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:40,750 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 220 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 624 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:40,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1381 states. [2022-01-18 14:07:40,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1381 to 1234. [2022-01-18 14:07:40,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1234 states, 1233 states have (on average 2.710462287104623) internal successors, (3342), 1233 states have internal predecessors, (3342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:40,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1234 states to 1234 states and 3342 transitions. [2022-01-18 14:07:40,762 INFO L78 Accepts]: Start accepts. Automaton has 1234 states and 3342 transitions. Word has length 26 [2022-01-18 14:07:40,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:40,762 INFO L470 AbstractCegarLoop]: Abstraction has 1234 states and 3342 transitions. [2022-01-18 14:07:40,762 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:40,762 INFO L276 IsEmpty]: Start isEmpty. Operand 1234 states and 3342 transitions. [2022-01-18 14:07:40,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:40,763 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:40,763 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:40,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable268 [2022-01-18 14:07:40,763 INFO L402 AbstractCegarLoop]: === Iteration 270 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:40,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:40,763 INFO L85 PathProgramCache]: Analyzing trace with hash 714043953, now seen corresponding path program 268 times [2022-01-18 14:07:40,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:40,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264027265] [2022-01-18 14:07:40,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:40,764 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:40,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:40,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:40,815 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:40,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264027265] [2022-01-18 14:07:40,815 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264027265] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:40,815 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:40,815 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:07:40,816 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819801020] [2022-01-18 14:07:40,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:40,816 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:07:40,816 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:40,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:07:40,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:40,816 INFO L87 Difference]: Start difference. First operand 1234 states and 3342 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:40,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:40,973 INFO L93 Difference]: Finished difference Result 1450 states and 3914 transitions. [2022-01-18 14:07:40,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:07:40,973 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:40,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:40,975 INFO L225 Difference]: With dead ends: 1450 [2022-01-18 14:07:40,975 INFO L226 Difference]: Without dead ends: 1359 [2022-01-18 14:07:40,975 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:40,975 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 46 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:40,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 211 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 14:07:40,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1359 states. [2022-01-18 14:07:40,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1359 to 1260. [2022-01-18 14:07:40,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1260 states, 1259 states have (on average 2.711675933280381) internal successors, (3414), 1259 states have internal predecessors, (3414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:40,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1260 states to 1260 states and 3414 transitions. [2022-01-18 14:07:40,988 INFO L78 Accepts]: Start accepts. Automaton has 1260 states and 3414 transitions. Word has length 26 [2022-01-18 14:07:40,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:40,988 INFO L470 AbstractCegarLoop]: Abstraction has 1260 states and 3414 transitions. [2022-01-18 14:07:40,988 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:40,988 INFO L276 IsEmpty]: Start isEmpty. Operand 1260 states and 3414 transitions. [2022-01-18 14:07:40,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:40,989 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:40,989 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:40,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable269 [2022-01-18 14:07:40,989 INFO L402 AbstractCegarLoop]: === Iteration 271 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:40,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:40,989 INFO L85 PathProgramCache]: Analyzing trace with hash -1222256973, now seen corresponding path program 269 times [2022-01-18 14:07:40,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:40,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845880070] [2022-01-18 14:07:40,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:40,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:40,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:41,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:41,048 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:41,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845880070] [2022-01-18 14:07:41,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845880070] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:41,049 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:41,049 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:41,049 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899249505] [2022-01-18 14:07:41,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:41,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:41,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:41,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:41,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:41,049 INFO L87 Difference]: Start difference. First operand 1260 states and 3414 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:41,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:41,255 INFO L93 Difference]: Finished difference Result 1501 states and 4029 transitions. [2022-01-18 14:07:41,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:41,256 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:41,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:41,257 INFO L225 Difference]: With dead ends: 1501 [2022-01-18 14:07:41,257 INFO L226 Difference]: Without dead ends: 1304 [2022-01-18 14:07:41,258 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:41,258 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 60 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 645 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:41,258 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 269 Invalid, 657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 645 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:41,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1304 states. [2022-01-18 14:07:41,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1304 to 1244. [2022-01-18 14:07:41,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1244 states, 1243 states have (on average 2.6942880128720836) internal successors, (3349), 1243 states have internal predecessors, (3349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:41,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1244 states to 1244 states and 3349 transitions. [2022-01-18 14:07:41,269 INFO L78 Accepts]: Start accepts. Automaton has 1244 states and 3349 transitions. Word has length 26 [2022-01-18 14:07:41,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:41,269 INFO L470 AbstractCegarLoop]: Abstraction has 1244 states and 3349 transitions. [2022-01-18 14:07:41,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:41,269 INFO L276 IsEmpty]: Start isEmpty. Operand 1244 states and 3349 transitions. [2022-01-18 14:07:41,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:41,270 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:41,270 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:41,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable270 [2022-01-18 14:07:41,270 INFO L402 AbstractCegarLoop]: === Iteration 272 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:41,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:41,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1003696817, now seen corresponding path program 270 times [2022-01-18 14:07:41,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:41,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506489988] [2022-01-18 14:07:41,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:41,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:41,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:41,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:41,330 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:41,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506489988] [2022-01-18 14:07:41,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506489988] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:41,330 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:41,330 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:41,330 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41686299] [2022-01-18 14:07:41,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:41,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:41,330 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:41,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:41,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:41,331 INFO L87 Difference]: Start difference. First operand 1244 states and 3349 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:41,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:41,523 INFO L93 Difference]: Finished difference Result 1399 states and 3720 transitions. [2022-01-18 14:07:41,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:41,523 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:41,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:41,525 INFO L225 Difference]: With dead ends: 1399 [2022-01-18 14:07:41,525 INFO L226 Difference]: Without dead ends: 1304 [2022-01-18 14:07:41,525 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:41,525 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 48 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 619 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:41,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 248 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 619 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:41,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1304 states. [2022-01-18 14:07:41,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1304 to 1244. [2022-01-18 14:07:41,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1244 states, 1243 states have (on average 2.6942880128720836) internal successors, (3349), 1243 states have internal predecessors, (3349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:41,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1244 states to 1244 states and 3349 transitions. [2022-01-18 14:07:41,536 INFO L78 Accepts]: Start accepts. Automaton has 1244 states and 3349 transitions. Word has length 26 [2022-01-18 14:07:41,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:41,536 INFO L470 AbstractCegarLoop]: Abstraction has 1244 states and 3349 transitions. [2022-01-18 14:07:41,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:41,536 INFO L276 IsEmpty]: Start isEmpty. Operand 1244 states and 3349 transitions. [2022-01-18 14:07:41,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:41,537 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:41,537 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:41,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable271 [2022-01-18 14:07:41,538 INFO L402 AbstractCegarLoop]: === Iteration 273 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:41,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:41,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1354969553, now seen corresponding path program 271 times [2022-01-18 14:07:41,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:41,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851938701] [2022-01-18 14:07:41,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:41,538 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:41,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:41,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:41,597 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:41,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851938701] [2022-01-18 14:07:41,597 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851938701] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:41,597 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:41,597 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:41,597 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592047098] [2022-01-18 14:07:41,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:41,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:41,597 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:41,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:41,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:41,597 INFO L87 Difference]: Start difference. First operand 1244 states and 3349 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:41,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:41,806 INFO L93 Difference]: Finished difference Result 1389 states and 3693 transitions. [2022-01-18 14:07:41,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:41,806 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:41,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:41,808 INFO L225 Difference]: With dead ends: 1389 [2022-01-18 14:07:41,808 INFO L226 Difference]: Without dead ends: 1292 [2022-01-18 14:07:41,808 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:41,808 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 53 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 674 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:41,808 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 246 Invalid, 684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 674 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:41,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1292 states. [2022-01-18 14:07:41,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1292 to 1244. [2022-01-18 14:07:41,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1244 states, 1243 states have (on average 2.6926790024135157) internal successors, (3347), 1243 states have internal predecessors, (3347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:41,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1244 states to 1244 states and 3347 transitions. [2022-01-18 14:07:41,820 INFO L78 Accepts]: Start accepts. Automaton has 1244 states and 3347 transitions. Word has length 26 [2022-01-18 14:07:41,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:41,820 INFO L470 AbstractCegarLoop]: Abstraction has 1244 states and 3347 transitions. [2022-01-18 14:07:41,820 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:41,820 INFO L276 IsEmpty]: Start isEmpty. Operand 1244 states and 3347 transitions. [2022-01-18 14:07:41,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:41,821 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:41,821 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:41,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable272 [2022-01-18 14:07:41,821 INFO L402 AbstractCegarLoop]: === Iteration 274 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:41,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:41,822 INFO L85 PathProgramCache]: Analyzing trace with hash 52478649, now seen corresponding path program 272 times [2022-01-18 14:07:41,822 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:41,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434501011] [2022-01-18 14:07:41,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:41,822 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:41,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:41,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:41,885 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:41,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434501011] [2022-01-18 14:07:41,885 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434501011] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:41,885 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:41,885 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:41,885 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953146476] [2022-01-18 14:07:41,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:41,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:41,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:41,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:41,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:41,886 INFO L87 Difference]: Start difference. First operand 1244 states and 3347 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:42,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:42,095 INFO L93 Difference]: Finished difference Result 1371 states and 3646 transitions. [2022-01-18 14:07:42,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:42,096 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:42,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:42,098 INFO L225 Difference]: With dead ends: 1371 [2022-01-18 14:07:42,098 INFO L226 Difference]: Without dead ends: 1266 [2022-01-18 14:07:42,098 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:42,098 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 53 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:42,098 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 250 Invalid, 680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 668 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:42,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1266 states. [2022-01-18 14:07:42,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1266 to 1232. [2022-01-18 14:07:42,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1232 states, 1231 states have (on average 2.6994313566206336) internal successors, (3323), 1231 states have internal predecessors, (3323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:42,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1232 states to 1232 states and 3323 transitions. [2022-01-18 14:07:42,109 INFO L78 Accepts]: Start accepts. Automaton has 1232 states and 3323 transitions. Word has length 26 [2022-01-18 14:07:42,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:42,110 INFO L470 AbstractCegarLoop]: Abstraction has 1232 states and 3323 transitions. [2022-01-18 14:07:42,110 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:42,110 INFO L276 IsEmpty]: Start isEmpty. Operand 1232 states and 3323 transitions. [2022-01-18 14:07:42,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:42,111 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:42,111 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:42,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable273 [2022-01-18 14:07:42,111 INFO L402 AbstractCegarLoop]: === Iteration 275 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:42,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:42,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1402035697, now seen corresponding path program 273 times [2022-01-18 14:07:42,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:42,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147140484] [2022-01-18 14:07:42,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:42,111 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:42,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:42,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:42,164 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:42,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147140484] [2022-01-18 14:07:42,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147140484] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:42,164 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:42,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:07:42,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334126877] [2022-01-18 14:07:42,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:42,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:07:42,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:42,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:07:42,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:42,164 INFO L87 Difference]: Start difference. First operand 1232 states and 3323 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:42,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:42,320 INFO L93 Difference]: Finished difference Result 1470 states and 3952 transitions. [2022-01-18 14:07:42,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:07:42,320 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:42,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:42,322 INFO L225 Difference]: With dead ends: 1470 [2022-01-18 14:07:42,322 INFO L226 Difference]: Without dead ends: 1389 [2022-01-18 14:07:42,322 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:42,322 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 47 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:42,322 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 216 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 14:07:42,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1389 states. [2022-01-18 14:07:42,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1389 to 1270. [2022-01-18 14:07:42,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1270 states, 1269 states have (on average 2.702915681639086) internal successors, (3430), 1269 states have internal predecessors, (3430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:42,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1270 states to 1270 states and 3430 transitions. [2022-01-18 14:07:42,334 INFO L78 Accepts]: Start accepts. Automaton has 1270 states and 3430 transitions. Word has length 26 [2022-01-18 14:07:42,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:42,334 INFO L470 AbstractCegarLoop]: Abstraction has 1270 states and 3430 transitions. [2022-01-18 14:07:42,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:42,334 INFO L276 IsEmpty]: Start isEmpty. Operand 1270 states and 3430 transitions. [2022-01-18 14:07:42,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:42,335 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:42,335 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:42,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable274 [2022-01-18 14:07:42,335 INFO L402 AbstractCegarLoop]: === Iteration 276 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:42,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:42,336 INFO L85 PathProgramCache]: Analyzing trace with hash 956630673, now seen corresponding path program 274 times [2022-01-18 14:07:42,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:42,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446714505] [2022-01-18 14:07:42,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:42,336 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:42,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:42,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:42,408 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:42,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446714505] [2022-01-18 14:07:42,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446714505] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:42,408 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:42,408 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:42,408 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305251735] [2022-01-18 14:07:42,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:42,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:42,408 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:42,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:42,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:42,408 INFO L87 Difference]: Start difference. First operand 1270 states and 3430 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:42,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:42,618 INFO L93 Difference]: Finished difference Result 1525 states and 4077 transitions. [2022-01-18 14:07:42,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:42,618 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:42,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:42,620 INFO L225 Difference]: With dead ends: 1525 [2022-01-18 14:07:42,620 INFO L226 Difference]: Without dead ends: 1330 [2022-01-18 14:07:42,620 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:42,620 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 61 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 656 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:42,620 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 275 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 656 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:42,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1330 states. [2022-01-18 14:07:42,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1330 to 1232. [2022-01-18 14:07:42,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1232 states, 1231 states have (on average 2.6896831844029245) internal successors, (3311), 1231 states have internal predecessors, (3311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:42,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1232 states to 1232 states and 3311 transitions. [2022-01-18 14:07:42,631 INFO L78 Accepts]: Start accepts. Automaton has 1232 states and 3311 transitions. Word has length 26 [2022-01-18 14:07:42,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:42,631 INFO L470 AbstractCegarLoop]: Abstraction has 1232 states and 3311 transitions. [2022-01-18 14:07:42,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:42,632 INFO L276 IsEmpty]: Start isEmpty. Operand 1232 states and 3311 transitions. [2022-01-18 14:07:42,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:42,633 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:42,633 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:42,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable275 [2022-01-18 14:07:42,633 INFO L402 AbstractCegarLoop]: === Iteration 277 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:42,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:42,633 INFO L85 PathProgramCache]: Analyzing trace with hash -520651185, now seen corresponding path program 275 times [2022-01-18 14:07:42,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:42,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28590691] [2022-01-18 14:07:42,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:42,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:42,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:42,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:42,692 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:42,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28590691] [2022-01-18 14:07:42,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28590691] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:42,693 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:42,693 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:42,693 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744282762] [2022-01-18 14:07:42,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:42,693 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:42,693 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:42,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:42,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:42,693 INFO L87 Difference]: Start difference. First operand 1232 states and 3311 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:42,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:42,889 INFO L93 Difference]: Finished difference Result 1421 states and 3771 transitions. [2022-01-18 14:07:42,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:42,889 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:42,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:42,891 INFO L225 Difference]: With dead ends: 1421 [2022-01-18 14:07:42,891 INFO L226 Difference]: Without dead ends: 1334 [2022-01-18 14:07:42,891 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:42,891 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 50 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 640 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:42,891 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 252 Invalid, 650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 640 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:42,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1334 states. [2022-01-18 14:07:42,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1334 to 1222. [2022-01-18 14:07:42,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1222 states, 1221 states have (on average 2.692055692055692) internal successors, (3287), 1221 states have internal predecessors, (3287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:42,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1222 states to 1222 states and 3287 transitions. [2022-01-18 14:07:42,902 INFO L78 Accepts]: Start accepts. Automaton has 1222 states and 3287 transitions. Word has length 26 [2022-01-18 14:07:42,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:42,902 INFO L470 AbstractCegarLoop]: Abstraction has 1222 states and 3287 transitions. [2022-01-18 14:07:42,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:42,902 INFO L276 IsEmpty]: Start isEmpty. Operand 1222 states and 3287 transitions. [2022-01-18 14:07:42,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:42,903 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:42,903 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:42,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable276 [2022-01-18 14:07:42,904 INFO L402 AbstractCegarLoop]: === Iteration 278 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:42,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:42,904 INFO L85 PathProgramCache]: Analyzing trace with hash 1838015185, now seen corresponding path program 276 times [2022-01-18 14:07:42,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:42,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349741222] [2022-01-18 14:07:42,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:42,904 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:42,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:42,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:42,962 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:42,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349741222] [2022-01-18 14:07:42,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349741222] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:42,962 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:42,962 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:42,962 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027352267] [2022-01-18 14:07:42,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:42,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:42,962 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:42,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:42,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:42,963 INFO L87 Difference]: Start difference. First operand 1222 states and 3287 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:43,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:43,176 INFO L93 Difference]: Finished difference Result 1394 states and 3706 transitions. [2022-01-18 14:07:43,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:43,176 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:43,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:43,178 INFO L225 Difference]: With dead ends: 1394 [2022-01-18 14:07:43,178 INFO L226 Difference]: Without dead ends: 1297 [2022-01-18 14:07:43,178 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:43,178 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 55 mSDsluCounter, 473 mSDsCounter, 0 mSdLazyCounter, 704 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:43,178 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 251 Invalid, 712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 704 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:43,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1297 states. [2022-01-18 14:07:43,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1297 to 1237. [2022-01-18 14:07:43,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1237 states, 1236 states have (on average 2.6885113268608416) internal successors, (3323), 1236 states have internal predecessors, (3323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:43,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1237 states to 1237 states and 3323 transitions. [2022-01-18 14:07:43,189 INFO L78 Accepts]: Start accepts. Automaton has 1237 states and 3323 transitions. Word has length 26 [2022-01-18 14:07:43,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:43,189 INFO L470 AbstractCegarLoop]: Abstraction has 1237 states and 3323 transitions. [2022-01-18 14:07:43,190 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:43,190 INFO L276 IsEmpty]: Start isEmpty. Operand 1237 states and 3323 transitions. [2022-01-18 14:07:43,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:43,191 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:43,191 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:43,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable277 [2022-01-18 14:07:43,191 INFO L402 AbstractCegarLoop]: === Iteration 279 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:43,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:43,191 INFO L85 PathProgramCache]: Analyzing trace with hash 918834063, now seen corresponding path program 277 times [2022-01-18 14:07:43,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:43,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243012748] [2022-01-18 14:07:43,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:43,191 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:43,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:43,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:43,249 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:43,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243012748] [2022-01-18 14:07:43,249 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243012748] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:43,250 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:43,250 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:43,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919303395] [2022-01-18 14:07:43,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:43,250 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:43,250 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:43,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:43,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:43,250 INFO L87 Difference]: Start difference. First operand 1237 states and 3323 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:43,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:43,466 INFO L93 Difference]: Finished difference Result 1383 states and 3684 transitions. [2022-01-18 14:07:43,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:43,467 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:43,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:43,468 INFO L225 Difference]: With dead ends: 1383 [2022-01-18 14:07:43,468 INFO L226 Difference]: Without dead ends: 1281 [2022-01-18 14:07:43,468 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:43,468 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 57 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 717 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:43,469 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 253 Invalid, 725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 717 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:43,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1281 states. [2022-01-18 14:07:43,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1281 to 1234. [2022-01-18 14:07:43,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1234 states, 1233 states have (on average 2.6885644768856447) internal successors, (3315), 1233 states have internal predecessors, (3315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:43,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1234 states to 1234 states and 3315 transitions. [2022-01-18 14:07:43,480 INFO L78 Accepts]: Start accepts. Automaton has 1234 states and 3315 transitions. Word has length 26 [2022-01-18 14:07:43,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:43,480 INFO L470 AbstractCegarLoop]: Abstraction has 1234 states and 3315 transitions. [2022-01-18 14:07:43,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:43,480 INFO L276 IsEmpty]: Start isEmpty. Operand 1234 states and 3315 transitions. [2022-01-18 14:07:43,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:43,481 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:43,481 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:43,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable278 [2022-01-18 14:07:43,481 INFO L402 AbstractCegarLoop]: === Iteration 280 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:43,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:43,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1815454421, now seen corresponding path program 278 times [2022-01-18 14:07:43,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:43,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209025275] [2022-01-18 14:07:43,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:43,482 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:43,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:43,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:43,540 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:43,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209025275] [2022-01-18 14:07:43,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209025275] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:43,540 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:43,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:43,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975234808] [2022-01-18 14:07:43,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:43,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:43,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:43,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:43,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:43,541 INFO L87 Difference]: Start difference. First operand 1234 states and 3315 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:43,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:43,754 INFO L93 Difference]: Finished difference Result 1413 states and 3754 transitions. [2022-01-18 14:07:43,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:43,755 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:43,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:43,756 INFO L225 Difference]: With dead ends: 1413 [2022-01-18 14:07:43,756 INFO L226 Difference]: Without dead ends: 1284 [2022-01-18 14:07:43,756 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:43,757 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 65 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 707 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:43,757 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 290 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 707 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:43,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1284 states. [2022-01-18 14:07:43,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1284 to 1234. [2022-01-18 14:07:43,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1234 states, 1233 states have (on average 2.6853203568532034) internal successors, (3311), 1233 states have internal predecessors, (3311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:43,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1234 states to 1234 states and 3311 transitions. [2022-01-18 14:07:43,768 INFO L78 Accepts]: Start accepts. Automaton has 1234 states and 3311 transitions. Word has length 26 [2022-01-18 14:07:43,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:43,768 INFO L470 AbstractCegarLoop]: Abstraction has 1234 states and 3311 transitions. [2022-01-18 14:07:43,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:43,768 INFO L276 IsEmpty]: Start isEmpty. Operand 1234 states and 3311 transitions. [2022-01-18 14:07:43,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:43,769 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:43,769 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:43,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable279 [2022-01-18 14:07:43,769 INFO L402 AbstractCegarLoop]: === Iteration 281 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:43,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:43,769 INFO L85 PathProgramCache]: Analyzing trace with hash -728733203, now seen corresponding path program 279 times [2022-01-18 14:07:43,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:43,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054239105] [2022-01-18 14:07:43,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:43,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:43,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:43,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:43,834 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:43,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054239105] [2022-01-18 14:07:43,834 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054239105] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:43,835 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:43,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:43,835 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525545582] [2022-01-18 14:07:43,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:43,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:43,835 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:43,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:43,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:43,835 INFO L87 Difference]: Start difference. First operand 1234 states and 3311 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:44,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:44,039 INFO L93 Difference]: Finished difference Result 1364 states and 3627 transitions. [2022-01-18 14:07:44,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:44,039 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:44,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:44,041 INFO L225 Difference]: With dead ends: 1364 [2022-01-18 14:07:44,041 INFO L226 Difference]: Without dead ends: 1283 [2022-01-18 14:07:44,041 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:44,041 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 43 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:44,042 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 219 Invalid, 619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 611 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:44,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1283 states. [2022-01-18 14:07:44,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1283 to 1235. [2022-01-18 14:07:44,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1235 states, 1234 states have (on average 2.686385737439222) internal successors, (3315), 1234 states have internal predecessors, (3315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:44,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1235 states to 1235 states and 3315 transitions. [2022-01-18 14:07:44,058 INFO L78 Accepts]: Start accepts. Automaton has 1235 states and 3315 transitions. Word has length 26 [2022-01-18 14:07:44,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:44,058 INFO L470 AbstractCegarLoop]: Abstraction has 1235 states and 3315 transitions. [2022-01-18 14:07:44,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:44,058 INFO L276 IsEmpty]: Start isEmpty. Operand 1235 states and 3315 transitions. [2022-01-18 14:07:44,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:44,059 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:44,059 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:44,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable280 [2022-01-18 14:07:44,059 INFO L402 AbstractCegarLoop]: === Iteration 282 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:44,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:44,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1629933167, now seen corresponding path program 280 times [2022-01-18 14:07:44,059 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:44,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497016450] [2022-01-18 14:07:44,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:44,060 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:44,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:44,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:44,119 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:44,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497016450] [2022-01-18 14:07:44,119 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497016450] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:44,119 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:44,119 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:44,119 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442682312] [2022-01-18 14:07:44,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:44,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:44,119 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:44,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:44,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:44,120 INFO L87 Difference]: Start difference. First operand 1235 states and 3315 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:44,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:44,325 INFO L93 Difference]: Finished difference Result 1374 states and 3654 transitions. [2022-01-18 14:07:44,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:44,333 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:44,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:44,335 INFO L225 Difference]: With dead ends: 1374 [2022-01-18 14:07:44,335 INFO L226 Difference]: Without dead ends: 1277 [2022-01-18 14:07:44,335 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:44,335 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 48 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 671 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:44,335 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 219 Invalid, 679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 671 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:44,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1277 states. [2022-01-18 14:07:44,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1277 to 1236. [2022-01-18 14:07:44,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1236 states, 1235 states have (on average 2.68582995951417) internal successors, (3317), 1235 states have internal predecessors, (3317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:44,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1236 states to 1236 states and 3317 transitions. [2022-01-18 14:07:44,346 INFO L78 Accepts]: Start accepts. Automaton has 1236 states and 3317 transitions. Word has length 26 [2022-01-18 14:07:44,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:44,346 INFO L470 AbstractCegarLoop]: Abstraction has 1236 states and 3317 transitions. [2022-01-18 14:07:44,346 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:44,346 INFO L276 IsEmpty]: Start isEmpty. Operand 1236 states and 3317 transitions. [2022-01-18 14:07:44,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:44,347 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:44,347 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:44,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable281 [2022-01-18 14:07:44,347 INFO L402 AbstractCegarLoop]: === Iteration 283 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:44,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:44,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1997305551, now seen corresponding path program 281 times [2022-01-18 14:07:44,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:44,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614134415] [2022-01-18 14:07:44,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:44,348 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:44,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:44,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:44,407 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:44,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614134415] [2022-01-18 14:07:44,407 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614134415] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:44,407 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:44,407 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:44,407 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519275725] [2022-01-18 14:07:44,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:44,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:44,407 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:44,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:44,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:44,407 INFO L87 Difference]: Start difference. First operand 1236 states and 3317 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:44,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:44,595 INFO L93 Difference]: Finished difference Result 1361 states and 3614 transitions. [2022-01-18 14:07:44,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:44,596 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:44,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:44,597 INFO L225 Difference]: With dead ends: 1361 [2022-01-18 14:07:44,597 INFO L226 Difference]: Without dead ends: 1270 [2022-01-18 14:07:44,598 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:44,598 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 42 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:44,598 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 225 Invalid, 622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 610 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:44,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1270 states. [2022-01-18 14:07:44,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1270 to 1230. [2022-01-18 14:07:44,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1230 states, 1229 states have (on average 2.679414157851912) internal successors, (3293), 1229 states have internal predecessors, (3293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:44,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1230 states to 1230 states and 3293 transitions. [2022-01-18 14:07:44,609 INFO L78 Accepts]: Start accepts. Automaton has 1230 states and 3293 transitions. Word has length 26 [2022-01-18 14:07:44,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:44,609 INFO L470 AbstractCegarLoop]: Abstraction has 1230 states and 3293 transitions. [2022-01-18 14:07:44,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:44,609 INFO L276 IsEmpty]: Start isEmpty. Operand 1230 states and 3293 transitions. [2022-01-18 14:07:44,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:44,610 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:44,610 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:44,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable282 [2022-01-18 14:07:44,610 INFO L402 AbstractCegarLoop]: === Iteration 284 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:44,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:44,610 INFO L85 PathProgramCache]: Analyzing trace with hash 327442263, now seen corresponding path program 282 times [2022-01-18 14:07:44,610 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:44,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747764589] [2022-01-18 14:07:44,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:44,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:44,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:44,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:44,670 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:44,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747764589] [2022-01-18 14:07:44,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747764589] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:44,670 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:44,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:44,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180516689] [2022-01-18 14:07:44,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:44,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:44,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:44,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:44,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:44,670 INFO L87 Difference]: Start difference. First operand 1230 states and 3293 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:44,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:44,878 INFO L93 Difference]: Finished difference Result 1343 states and 3570 transitions. [2022-01-18 14:07:44,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:44,878 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:44,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:44,880 INFO L225 Difference]: With dead ends: 1343 [2022-01-18 14:07:44,880 INFO L226 Difference]: Without dead ends: 1244 [2022-01-18 14:07:44,880 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:44,880 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 48 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 674 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:44,880 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 223 Invalid, 684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 674 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:44,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1244 states. [2022-01-18 14:07:44,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1244 to 1229. [2022-01-18 14:07:44,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1229 states, 1228 states have (on average 2.6807817589576546) internal successors, (3292), 1228 states have internal predecessors, (3292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:44,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1229 states to 1229 states and 3292 transitions. [2022-01-18 14:07:44,891 INFO L78 Accepts]: Start accepts. Automaton has 1229 states and 3292 transitions. Word has length 26 [2022-01-18 14:07:44,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:44,891 INFO L470 AbstractCegarLoop]: Abstraction has 1229 states and 3292 transitions. [2022-01-18 14:07:44,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:44,891 INFO L276 IsEmpty]: Start isEmpty. Operand 1229 states and 3292 transitions. [2022-01-18 14:07:44,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:44,892 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:44,892 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:44,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable283 [2022-01-18 14:07:44,893 INFO L402 AbstractCegarLoop]: === Iteration 285 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:44,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:44,893 INFO L85 PathProgramCache]: Analyzing trace with hash -935541169, now seen corresponding path program 283 times [2022-01-18 14:07:44,893 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:44,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223165133] [2022-01-18 14:07:44,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:44,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:44,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:44,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:44,958 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:44,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223165133] [2022-01-18 14:07:44,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223165133] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:44,958 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:44,958 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:44,958 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079548024] [2022-01-18 14:07:44,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:44,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:44,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:44,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:44,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:44,959 INFO L87 Difference]: Start difference. First operand 1229 states and 3292 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:45,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:45,150 INFO L93 Difference]: Finished difference Result 1364 states and 3621 transitions. [2022-01-18 14:07:45,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:45,150 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:45,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:45,152 INFO L225 Difference]: With dead ends: 1364 [2022-01-18 14:07:45,152 INFO L226 Difference]: Without dead ends: 1283 [2022-01-18 14:07:45,152 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:45,152 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 44 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 621 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:45,152 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 217 Invalid, 629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 621 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:45,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1283 states. [2022-01-18 14:07:45,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1283 to 1229. [2022-01-18 14:07:45,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1229 states, 1228 states have (on average 2.682410423452769) internal successors, (3294), 1228 states have internal predecessors, (3294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:45,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1229 states to 1229 states and 3294 transitions. [2022-01-18 14:07:45,163 INFO L78 Accepts]: Start accepts. Automaton has 1229 states and 3294 transitions. Word has length 26 [2022-01-18 14:07:45,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:45,164 INFO L470 AbstractCegarLoop]: Abstraction has 1229 states and 3294 transitions. [2022-01-18 14:07:45,164 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:45,164 INFO L276 IsEmpty]: Start isEmpty. Operand 1229 states and 3294 transitions. [2022-01-18 14:07:45,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:45,165 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:45,165 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:45,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable284 [2022-01-18 14:07:45,165 INFO L402 AbstractCegarLoop]: === Iteration 286 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:45,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:45,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1423125201, now seen corresponding path program 284 times [2022-01-18 14:07:45,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:45,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366880638] [2022-01-18 14:07:45,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:45,165 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:45,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:45,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:45,227 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:45,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366880638] [2022-01-18 14:07:45,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366880638] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:45,227 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:45,227 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:45,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087609598] [2022-01-18 14:07:45,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:45,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:45,228 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:45,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:45,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:45,228 INFO L87 Difference]: Start difference. First operand 1229 states and 3294 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:45,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:45,435 INFO L93 Difference]: Finished difference Result 1372 states and 3640 transitions. [2022-01-18 14:07:45,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:45,435 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:45,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:45,436 INFO L225 Difference]: With dead ends: 1372 [2022-01-18 14:07:45,436 INFO L226 Difference]: Without dead ends: 1275 [2022-01-18 14:07:45,436 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:45,437 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 49 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 681 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:45,437 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 217 Invalid, 689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 681 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:45,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1275 states. [2022-01-18 14:07:45,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1275 to 1228. [2022-01-18 14:07:45,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1228 states, 1227 states have (on average 2.6788916055419723) internal successors, (3287), 1227 states have internal predecessors, (3287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:45,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1228 states to 1228 states and 3287 transitions. [2022-01-18 14:07:45,447 INFO L78 Accepts]: Start accepts. Automaton has 1228 states and 3287 transitions. Word has length 26 [2022-01-18 14:07:45,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:45,448 INFO L470 AbstractCegarLoop]: Abstraction has 1228 states and 3287 transitions. [2022-01-18 14:07:45,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:45,448 INFO L276 IsEmpty]: Start isEmpty. Operand 1228 states and 3287 transitions. [2022-01-18 14:07:45,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:45,449 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:45,449 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:45,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable285 [2022-01-18 14:07:45,449 INFO L402 AbstractCegarLoop]: === Iteration 287 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:45,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:45,449 INFO L85 PathProgramCache]: Analyzing trace with hash 765961679, now seen corresponding path program 285 times [2022-01-18 14:07:45,449 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:45,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263475542] [2022-01-18 14:07:45,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:45,449 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:45,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:45,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:45,509 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:45,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263475542] [2022-01-18 14:07:45,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263475542] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:45,510 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:45,510 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:45,510 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723572531] [2022-01-18 14:07:45,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:45,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:45,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:45,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:45,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:45,510 INFO L87 Difference]: Start difference. First operand 1228 states and 3287 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:45,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:45,712 INFO L93 Difference]: Finished difference Result 1374 states and 3642 transitions. [2022-01-18 14:07:45,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:45,712 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:45,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:45,714 INFO L225 Difference]: With dead ends: 1374 [2022-01-18 14:07:45,714 INFO L226 Difference]: Without dead ends: 1287 [2022-01-18 14:07:45,714 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:45,714 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 44 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 624 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:45,714 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 220 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 624 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:45,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1287 states. [2022-01-18 14:07:45,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1287 to 1225. [2022-01-18 14:07:45,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1225 states, 1224 states have (on average 2.6756535947712417) internal successors, (3275), 1224 states have internal predecessors, (3275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:45,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1225 states to 1225 states and 3275 transitions. [2022-01-18 14:07:45,725 INFO L78 Accepts]: Start accepts. Automaton has 1225 states and 3275 transitions. Word has length 26 [2022-01-18 14:07:45,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:45,725 INFO L470 AbstractCegarLoop]: Abstraction has 1225 states and 3275 transitions. [2022-01-18 14:07:45,725 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:45,725 INFO L276 IsEmpty]: Start isEmpty. Operand 1225 states and 3275 transitions. [2022-01-18 14:07:45,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:45,726 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:45,727 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:45,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable286 [2022-01-18 14:07:45,727 INFO L402 AbstractCegarLoop]: === Iteration 288 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:45,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:45,727 INFO L85 PathProgramCache]: Analyzing trace with hash -562604243, now seen corresponding path program 286 times [2022-01-18 14:07:45,727 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:45,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162079857] [2022-01-18 14:07:45,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:45,727 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:45,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:45,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:45,800 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:45,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162079857] [2022-01-18 14:07:45,800 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162079857] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:45,800 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:45,800 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:45,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809370521] [2022-01-18 14:07:45,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:45,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:45,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:45,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:45,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:45,801 INFO L87 Difference]: Start difference. First operand 1225 states and 3275 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:46,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:46,014 INFO L93 Difference]: Finished difference Result 1354 states and 3596 transitions. [2022-01-18 14:07:46,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:46,014 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:46,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:46,016 INFO L225 Difference]: With dead ends: 1354 [2022-01-18 14:07:46,016 INFO L226 Difference]: Without dead ends: 1252 [2022-01-18 14:07:46,016 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:46,016 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 51 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 694 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:46,016 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 219 Invalid, 702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 694 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:46,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1252 states. [2022-01-18 14:07:46,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1252 to 1223. [2022-01-18 14:07:46,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1223 states, 1222 states have (on average 2.6783960720130935) internal successors, (3273), 1222 states have internal predecessors, (3273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:46,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1223 states to 1223 states and 3273 transitions. [2022-01-18 14:07:46,027 INFO L78 Accepts]: Start accepts. Automaton has 1223 states and 3273 transitions. Word has length 26 [2022-01-18 14:07:46,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:46,027 INFO L470 AbstractCegarLoop]: Abstraction has 1223 states and 3273 transitions. [2022-01-18 14:07:46,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:46,028 INFO L276 IsEmpty]: Start isEmpty. Operand 1223 states and 3273 transitions. [2022-01-18 14:07:46,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:46,029 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:46,029 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:46,029 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable287 [2022-01-18 14:07:46,029 INFO L402 AbstractCegarLoop]: === Iteration 289 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:46,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:46,029 INFO L85 PathProgramCache]: Analyzing trace with hash -735880775, now seen corresponding path program 287 times [2022-01-18 14:07:46,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:46,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162230523] [2022-01-18 14:07:46,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:46,029 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:46,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:46,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:46,091 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:46,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162230523] [2022-01-18 14:07:46,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162230523] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:46,091 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:46,091 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:46,091 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970403168] [2022-01-18 14:07:46,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:46,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:46,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:46,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:46,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:46,091 INFO L87 Difference]: Start difference. First operand 1223 states and 3273 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:46,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:46,304 INFO L93 Difference]: Finished difference Result 1345 states and 3575 transitions. [2022-01-18 14:07:46,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:46,304 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:46,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:46,306 INFO L225 Difference]: With dead ends: 1345 [2022-01-18 14:07:46,306 INFO L226 Difference]: Without dead ends: 1248 [2022-01-18 14:07:46,306 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:46,306 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 49 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:46,306 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 225 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:46,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1248 states. [2022-01-18 14:07:46,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1248 to 1222. [2022-01-18 14:07:46,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1222 states, 1221 states have (on average 2.678132678132678) internal successors, (3270), 1221 states have internal predecessors, (3270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:46,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1222 states to 1222 states and 3270 transitions. [2022-01-18 14:07:46,317 INFO L78 Accepts]: Start accepts. Automaton has 1222 states and 3270 transitions. Word has length 26 [2022-01-18 14:07:46,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:46,317 INFO L470 AbstractCegarLoop]: Abstraction has 1222 states and 3270 transitions. [2022-01-18 14:07:46,317 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:46,317 INFO L276 IsEmpty]: Start isEmpty. Operand 1222 states and 3270 transitions. [2022-01-18 14:07:46,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:46,318 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:46,318 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:46,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable288 [2022-01-18 14:07:46,318 INFO L402 AbstractCegarLoop]: === Iteration 290 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:46,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:46,319 INFO L85 PathProgramCache]: Analyzing trace with hash -2128025321, now seen corresponding path program 288 times [2022-01-18 14:07:46,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:46,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221488738] [2022-01-18 14:07:46,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:46,319 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:46,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:46,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:46,377 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:46,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221488738] [2022-01-18 14:07:46,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221488738] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:46,377 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:46,377 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:46,377 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132329346] [2022-01-18 14:07:46,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:46,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:46,377 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:46,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:46,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:46,378 INFO L87 Difference]: Start difference. First operand 1222 states and 3270 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:46,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:46,590 INFO L93 Difference]: Finished difference Result 1347 states and 3575 transitions. [2022-01-18 14:07:46,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:46,590 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:46,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:46,591 INFO L225 Difference]: With dead ends: 1347 [2022-01-18 14:07:46,591 INFO L226 Difference]: Without dead ends: 1226 [2022-01-18 14:07:46,591 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:46,592 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 51 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 697 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 697 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:46,592 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 223 Invalid, 707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 697 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:46,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1226 states. [2022-01-18 14:07:46,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1226 to 1190. [2022-01-18 14:07:46,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1190 states, 1189 states have (on average 2.686291000841043) internal successors, (3194), 1189 states have internal predecessors, (3194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:46,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1190 states to 1190 states and 3194 transitions. [2022-01-18 14:07:46,602 INFO L78 Accepts]: Start accepts. Automaton has 1190 states and 3194 transitions. Word has length 26 [2022-01-18 14:07:46,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:46,602 INFO L470 AbstractCegarLoop]: Abstraction has 1190 states and 3194 transitions. [2022-01-18 14:07:46,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:46,602 INFO L276 IsEmpty]: Start isEmpty. Operand 1190 states and 3194 transitions. [2022-01-18 14:07:46,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:46,604 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:46,604 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:46,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable289 [2022-01-18 14:07:46,604 INFO L402 AbstractCegarLoop]: === Iteration 291 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:46,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:46,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1457225917, now seen corresponding path program 289 times [2022-01-18 14:07:46,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:46,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106930352] [2022-01-18 14:07:46,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:46,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:46,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:46,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:46,654 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:46,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106930352] [2022-01-18 14:07:46,654 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106930352] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:46,654 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:46,654 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:07:46,654 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175737936] [2022-01-18 14:07:46,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:46,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:07:46,654 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:46,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:07:46,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:46,655 INFO L87 Difference]: Start difference. First operand 1190 states and 3194 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:46,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:46,829 INFO L93 Difference]: Finished difference Result 1469 states and 3888 transitions. [2022-01-18 14:07:46,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:07:46,829 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:46,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:46,831 INFO L225 Difference]: With dead ends: 1469 [2022-01-18 14:07:46,831 INFO L226 Difference]: Without dead ends: 1294 [2022-01-18 14:07:46,831 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:46,831 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 64 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 560 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:46,831 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 253 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 560 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:46,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1294 states. [2022-01-18 14:07:46,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1294 to 1264. [2022-01-18 14:07:46,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1264 states, 1263 states have (on average 2.66270783847981) internal successors, (3363), 1263 states have internal predecessors, (3363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:46,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1264 states to 1264 states and 3363 transitions. [2022-01-18 14:07:46,842 INFO L78 Accepts]: Start accepts. Automaton has 1264 states and 3363 transitions. Word has length 26 [2022-01-18 14:07:46,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:46,842 INFO L470 AbstractCegarLoop]: Abstraction has 1264 states and 3363 transitions. [2022-01-18 14:07:46,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:46,842 INFO L276 IsEmpty]: Start isEmpty. Operand 1264 states and 3363 transitions. [2022-01-18 14:07:46,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:46,843 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:46,843 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:46,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable290 [2022-01-18 14:07:46,844 INFO L402 AbstractCegarLoop]: === Iteration 292 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:46,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:46,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1956652031, now seen corresponding path program 290 times [2022-01-18 14:07:46,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:46,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316065900] [2022-01-18 14:07:46,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:46,844 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:46,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:46,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:46,894 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:46,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316065900] [2022-01-18 14:07:46,894 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316065900] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:46,895 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:46,895 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:07:46,895 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469037265] [2022-01-18 14:07:46,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:46,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:07:46,895 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:46,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:07:46,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:46,895 INFO L87 Difference]: Start difference. First operand 1264 states and 3363 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:47,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:47,068 INFO L93 Difference]: Finished difference Result 1463 states and 3865 transitions. [2022-01-18 14:07:47,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:07:47,068 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:47,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:47,069 INFO L225 Difference]: With dead ends: 1463 [2022-01-18 14:07:47,070 INFO L226 Difference]: Without dead ends: 1305 [2022-01-18 14:07:47,070 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:47,070 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 56 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 556 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:47,070 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 225 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 556 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:47,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1305 states. [2022-01-18 14:07:47,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1305 to 1277. [2022-01-18 14:07:47,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1277 states, 1276 states have (on average 2.6504702194357366) internal successors, (3382), 1276 states have internal predecessors, (3382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:47,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1277 states to 1277 states and 3382 transitions. [2022-01-18 14:07:47,081 INFO L78 Accepts]: Start accepts. Automaton has 1277 states and 3382 transitions. Word has length 26 [2022-01-18 14:07:47,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:47,081 INFO L470 AbstractCegarLoop]: Abstraction has 1277 states and 3382 transitions. [2022-01-18 14:07:47,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:47,081 INFO L276 IsEmpty]: Start isEmpty. Operand 1277 states and 3382 transitions. [2022-01-18 14:07:47,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:47,082 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:47,082 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:47,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable291 [2022-01-18 14:07:47,083 INFO L402 AbstractCegarLoop]: === Iteration 293 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:47,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:47,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1417739299, now seen corresponding path program 291 times [2022-01-18 14:07:47,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:47,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973356384] [2022-01-18 14:07:47,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:47,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:47,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:47,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:47,150 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:47,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973356384] [2022-01-18 14:07:47,150 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973356384] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:47,150 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:47,150 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:07:47,150 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588726920] [2022-01-18 14:07:47,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:47,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:07:47,150 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:47,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:07:47,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:47,150 INFO L87 Difference]: Start difference. First operand 1277 states and 3382 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:47,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:47,324 INFO L93 Difference]: Finished difference Result 1480 states and 3886 transitions. [2022-01-18 14:07:47,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:07:47,324 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:47,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:47,326 INFO L225 Difference]: With dead ends: 1480 [2022-01-18 14:07:47,326 INFO L226 Difference]: Without dead ends: 1330 [2022-01-18 14:07:47,326 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:47,326 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 56 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:47,326 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 223 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 559 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:47,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1330 states. [2022-01-18 14:07:47,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1330 to 1268. [2022-01-18 14:07:47,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1268 states, 1267 states have (on average 2.6479873717442777) internal successors, (3355), 1267 states have internal predecessors, (3355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:47,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1268 states to 1268 states and 3355 transitions. [2022-01-18 14:07:47,337 INFO L78 Accepts]: Start accepts. Automaton has 1268 states and 3355 transitions. Word has length 26 [2022-01-18 14:07:47,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:47,337 INFO L470 AbstractCegarLoop]: Abstraction has 1268 states and 3355 transitions. [2022-01-18 14:07:47,338 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:47,338 INFO L276 IsEmpty]: Start isEmpty. Operand 1268 states and 3355 transitions. [2022-01-18 14:07:47,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:47,339 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:47,339 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:47,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable292 [2022-01-18 14:07:47,339 INFO L402 AbstractCegarLoop]: === Iteration 294 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:47,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:47,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1353621305, now seen corresponding path program 292 times [2022-01-18 14:07:47,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:47,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958003346] [2022-01-18 14:07:47,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:47,339 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:47,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:47,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:47,392 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:47,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958003346] [2022-01-18 14:07:47,392 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958003346] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:47,392 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:47,392 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:07:47,392 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826192734] [2022-01-18 14:07:47,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:47,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:07:47,393 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:47,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:07:47,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:47,393 INFO L87 Difference]: Start difference. First operand 1268 states and 3355 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:47,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:47,560 INFO L93 Difference]: Finished difference Result 1405 states and 3686 transitions. [2022-01-18 14:07:47,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:07:47,560 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:47,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:47,562 INFO L225 Difference]: With dead ends: 1405 [2022-01-18 14:07:47,562 INFO L226 Difference]: Without dead ends: 1180 [2022-01-18 14:07:47,562 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:47,562 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 54 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:47,562 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 225 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 542 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:47,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1180 states. [2022-01-18 14:07:47,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1180 to 1124. [2022-01-18 14:07:47,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1124 states, 1123 states have (on average 2.646482635796972) internal successors, (2972), 1123 states have internal predecessors, (2972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:47,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1124 states to 1124 states and 2972 transitions. [2022-01-18 14:07:47,572 INFO L78 Accepts]: Start accepts. Automaton has 1124 states and 2972 transitions. Word has length 26 [2022-01-18 14:07:47,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:47,572 INFO L470 AbstractCegarLoop]: Abstraction has 1124 states and 2972 transitions. [2022-01-18 14:07:47,572 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:47,572 INFO L276 IsEmpty]: Start isEmpty. Operand 1124 states and 2972 transitions. [2022-01-18 14:07:47,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:47,573 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:47,573 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:47,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable293 [2022-01-18 14:07:47,573 INFO L402 AbstractCegarLoop]: === Iteration 295 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:47,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:47,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1484127453, now seen corresponding path program 293 times [2022-01-18 14:07:47,573 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:47,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008656645] [2022-01-18 14:07:47,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:47,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:47,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:47,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:47,624 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:47,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008656645] [2022-01-18 14:07:47,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008656645] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:47,624 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:47,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:07:47,624 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858964941] [2022-01-18 14:07:47,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:47,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:07:47,624 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:47,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:07:47,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:47,625 INFO L87 Difference]: Start difference. First operand 1124 states and 2972 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:47,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:47,800 INFO L93 Difference]: Finished difference Result 1284 states and 3343 transitions. [2022-01-18 14:07:47,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:07:47,800 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:47,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:47,802 INFO L225 Difference]: With dead ends: 1284 [2022-01-18 14:07:47,802 INFO L226 Difference]: Without dead ends: 1064 [2022-01-18 14:07:47,802 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:47,802 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 56 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 564 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:47,802 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 234 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 564 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:47,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1064 states. [2022-01-18 14:07:47,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1064 to 1040. [2022-01-18 14:07:47,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1040 states, 1039 states have (on average 2.6121270452358036) internal successors, (2714), 1039 states have internal predecessors, (2714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:47,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1040 states to 1040 states and 2714 transitions. [2022-01-18 14:07:47,811 INFO L78 Accepts]: Start accepts. Automaton has 1040 states and 2714 transitions. Word has length 26 [2022-01-18 14:07:47,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:47,811 INFO L470 AbstractCegarLoop]: Abstraction has 1040 states and 2714 transitions. [2022-01-18 14:07:47,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:47,811 INFO L276 IsEmpty]: Start isEmpty. Operand 1040 states and 2714 transitions. [2022-01-18 14:07:47,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:47,812 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:47,812 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:47,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable294 [2022-01-18 14:07:47,812 INFO L402 AbstractCegarLoop]: === Iteration 296 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:47,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:47,812 INFO L85 PathProgramCache]: Analyzing trace with hash -632141665, now seen corresponding path program 294 times [2022-01-18 14:07:47,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:47,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350565350] [2022-01-18 14:07:47,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:47,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:47,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:47,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:47,882 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:47,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350565350] [2022-01-18 14:07:47,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350565350] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:47,882 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:47,882 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:47,882 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243389596] [2022-01-18 14:07:47,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:47,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:47,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:47,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:47,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:47,883 INFO L87 Difference]: Start difference. First operand 1040 states and 2714 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:48,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:48,096 INFO L93 Difference]: Finished difference Result 1182 states and 3054 transitions. [2022-01-18 14:07:48,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:48,097 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:48,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:48,098 INFO L225 Difference]: With dead ends: 1182 [2022-01-18 14:07:48,098 INFO L226 Difference]: Without dead ends: 982 [2022-01-18 14:07:48,098 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:48,098 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 60 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 697 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 697 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:48,098 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 299 Invalid, 709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 697 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:48,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 982 states. [2022-01-18 14:07:48,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 982 to 950. [2022-01-18 14:07:48,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 950 states, 949 states have (on average 2.6217070600632244) internal successors, (2488), 949 states have internal predecessors, (2488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:48,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 950 states to 950 states and 2488 transitions. [2022-01-18 14:07:48,107 INFO L78 Accepts]: Start accepts. Automaton has 950 states and 2488 transitions. Word has length 26 [2022-01-18 14:07:48,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:48,107 INFO L470 AbstractCegarLoop]: Abstraction has 950 states and 2488 transitions. [2022-01-18 14:07:48,107 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:48,107 INFO L276 IsEmpty]: Start isEmpty. Operand 950 states and 2488 transitions. [2022-01-18 14:07:48,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:48,108 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:48,108 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:48,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable295 [2022-01-18 14:07:48,108 INFO L402 AbstractCegarLoop]: === Iteration 297 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:48,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:48,108 INFO L85 PathProgramCache]: Analyzing trace with hash 781640861, now seen corresponding path program 295 times [2022-01-18 14:07:48,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:48,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119170570] [2022-01-18 14:07:48,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:48,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:48,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:48,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:48,166 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:48,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119170570] [2022-01-18 14:07:48,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119170570] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:48,166 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:48,166 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:48,166 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806226907] [2022-01-18 14:07:48,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:48,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:48,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:48,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:48,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:48,167 INFO L87 Difference]: Start difference. First operand 950 states and 2488 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:48,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:48,377 INFO L93 Difference]: Finished difference Result 1068 states and 2776 transitions. [2022-01-18 14:07:48,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:48,377 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:48,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:48,378 INFO L225 Difference]: With dead ends: 1068 [2022-01-18 14:07:48,378 INFO L226 Difference]: Without dead ends: 975 [2022-01-18 14:07:48,378 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:48,378 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 57 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 682 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:48,379 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 295 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 682 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:48,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 975 states. [2022-01-18 14:07:48,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 975 to 956. [2022-01-18 14:07:48,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 956 states, 955 states have (on average 2.6157068062827227) internal successors, (2498), 955 states have internal predecessors, (2498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:48,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 956 states to 956 states and 2498 transitions. [2022-01-18 14:07:48,387 INFO L78 Accepts]: Start accepts. Automaton has 956 states and 2498 transitions. Word has length 26 [2022-01-18 14:07:48,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:48,387 INFO L470 AbstractCegarLoop]: Abstraction has 956 states and 2498 transitions. [2022-01-18 14:07:48,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:48,387 INFO L276 IsEmpty]: Start isEmpty. Operand 956 states and 2498 transitions. [2022-01-18 14:07:48,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:48,388 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:48,388 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:48,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable296 [2022-01-18 14:07:48,388 INFO L402 AbstractCegarLoop]: === Iteration 298 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:48,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:48,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1281066975, now seen corresponding path program 296 times [2022-01-18 14:07:48,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:48,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528361035] [2022-01-18 14:07:48,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:48,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:48,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:48,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:48,447 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:48,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528361035] [2022-01-18 14:07:48,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528361035] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:48,447 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:48,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:48,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289591146] [2022-01-18 14:07:48,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:48,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:48,447 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:48,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:48,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:48,447 INFO L87 Difference]: Start difference. First operand 956 states and 2498 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:48,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:48,654 INFO L93 Difference]: Finished difference Result 1078 states and 2806 transitions. [2022-01-18 14:07:48,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:48,654 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:48,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:48,655 INFO L225 Difference]: With dead ends: 1078 [2022-01-18 14:07:48,655 INFO L226 Difference]: Without dead ends: 1003 [2022-01-18 14:07:48,655 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:48,655 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 51 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 682 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:48,656 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 270 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 682 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:48,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003 states. [2022-01-18 14:07:48,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 959. [2022-01-18 14:07:48,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 959 states, 958 states have (on average 2.6189979123173277) internal successors, (2509), 958 states have internal predecessors, (2509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:48,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 959 states to 959 states and 2509 transitions. [2022-01-18 14:07:48,664 INFO L78 Accepts]: Start accepts. Automaton has 959 states and 2509 transitions. Word has length 26 [2022-01-18 14:07:48,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:48,664 INFO L470 AbstractCegarLoop]: Abstraction has 959 states and 2509 transitions. [2022-01-18 14:07:48,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:48,664 INFO L276 IsEmpty]: Start isEmpty. Operand 959 states and 2509 transitions. [2022-01-18 14:07:48,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:48,665 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:48,665 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:48,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable297 [2022-01-18 14:07:48,665 INFO L402 AbstractCegarLoop]: === Iteration 299 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:48,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:48,665 INFO L85 PathProgramCache]: Analyzing trace with hash -430274529, now seen corresponding path program 297 times [2022-01-18 14:07:48,665 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:48,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860815842] [2022-01-18 14:07:48,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:48,666 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:48,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:48,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:48,724 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:48,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860815842] [2022-01-18 14:07:48,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860815842] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:48,724 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:48,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:48,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269793370] [2022-01-18 14:07:48,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:48,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:48,724 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:48,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:48,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:48,724 INFO L87 Difference]: Start difference. First operand 959 states and 2509 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:48,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:48,942 INFO L93 Difference]: Finished difference Result 1113 states and 2881 transitions. [2022-01-18 14:07:48,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:48,942 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:48,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:48,943 INFO L225 Difference]: With dead ends: 1113 [2022-01-18 14:07:48,943 INFO L226 Difference]: Without dead ends: 981 [2022-01-18 14:07:48,943 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:48,944 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 56 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:48,944 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 269 Invalid, 726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 714 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:48,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 981 states. [2022-01-18 14:07:48,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 981 to 941. [2022-01-18 14:07:48,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 941 states, 940 states have (on average 2.620212765957447) internal successors, (2463), 940 states have internal predecessors, (2463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:48,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 941 states to 941 states and 2463 transitions. [2022-01-18 14:07:48,952 INFO L78 Accepts]: Start accepts. Automaton has 941 states and 2463 transitions. Word has length 26 [2022-01-18 14:07:48,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:48,952 INFO L470 AbstractCegarLoop]: Abstraction has 941 states and 2463 transitions. [2022-01-18 14:07:48,952 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:48,952 INFO L276 IsEmpty]: Start isEmpty. Operand 941 states and 2463 transitions. [2022-01-18 14:07:48,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:48,953 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:48,953 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:48,953 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable298 [2022-01-18 14:07:48,953 INFO L402 AbstractCegarLoop]: === Iteration 300 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:48,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:48,953 INFO L85 PathProgramCache]: Analyzing trace with hash -2093324355, now seen corresponding path program 298 times [2022-01-18 14:07:48,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:48,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262688577] [2022-01-18 14:07:48,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:48,954 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:48,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:49,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:49,026 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:49,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262688577] [2022-01-18 14:07:49,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262688577] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:49,026 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:49,026 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:49,026 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670221080] [2022-01-18 14:07:49,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:49,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:49,027 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:49,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:49,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:49,027 INFO L87 Difference]: Start difference. First operand 941 states and 2463 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:49,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:49,235 INFO L93 Difference]: Finished difference Result 1045 states and 2715 transitions. [2022-01-18 14:07:49,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:49,236 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:49,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:49,237 INFO L225 Difference]: With dead ends: 1045 [2022-01-18 14:07:49,237 INFO L226 Difference]: Without dead ends: 955 [2022-01-18 14:07:49,237 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:49,237 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 51 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 677 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:49,237 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 267 Invalid, 685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 677 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:49,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 955 states. [2022-01-18 14:07:49,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 955 to 926. [2022-01-18 14:07:49,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 926 states, 925 states have (on average 2.627027027027027) internal successors, (2430), 925 states have internal predecessors, (2430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:49,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 926 states to 926 states and 2430 transitions. [2022-01-18 14:07:49,245 INFO L78 Accepts]: Start accepts. Automaton has 926 states and 2430 transitions. Word has length 26 [2022-01-18 14:07:49,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:49,245 INFO L470 AbstractCegarLoop]: Abstraction has 926 states and 2430 transitions. [2022-01-18 14:07:49,245 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:49,245 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states and 2430 transitions. [2022-01-18 14:07:49,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:49,246 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:49,246 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:49,246 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable299 [2022-01-18 14:07:49,246 INFO L402 AbstractCegarLoop]: === Iteration 301 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:49,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:49,247 INFO L85 PathProgramCache]: Analyzing trace with hash -392318849, now seen corresponding path program 299 times [2022-01-18 14:07:49,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:49,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527923664] [2022-01-18 14:07:49,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:49,247 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:49,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:49,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:49,305 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:49,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527923664] [2022-01-18 14:07:49,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527923664] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:49,306 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:49,306 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:49,306 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777774491] [2022-01-18 14:07:49,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:49,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:49,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:49,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:49,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:49,306 INFO L87 Difference]: Start difference. First operand 926 states and 2430 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:49,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:49,531 INFO L93 Difference]: Finished difference Result 1077 states and 2798 transitions. [2022-01-18 14:07:49,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:49,531 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:49,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:49,532 INFO L225 Difference]: With dead ends: 1077 [2022-01-18 14:07:49,533 INFO L226 Difference]: Without dead ends: 984 [2022-01-18 14:07:49,533 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:49,533 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 57 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:49,533 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 297 Invalid, 688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:49,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 984 states. [2022-01-18 14:07:49,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 984 to 926. [2022-01-18 14:07:49,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 926 states, 925 states have (on average 2.6183783783783783) internal successors, (2422), 925 states have internal predecessors, (2422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:49,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 926 states to 926 states and 2422 transitions. [2022-01-18 14:07:49,541 INFO L78 Accepts]: Start accepts. Automaton has 926 states and 2422 transitions. Word has length 26 [2022-01-18 14:07:49,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:49,541 INFO L470 AbstractCegarLoop]: Abstraction has 926 states and 2422 transitions. [2022-01-18 14:07:49,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:49,541 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states and 2422 transitions. [2022-01-18 14:07:49,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:49,542 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:49,542 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:49,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable300 [2022-01-18 14:07:49,542 INFO L402 AbstractCegarLoop]: === Iteration 302 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:49,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:49,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1421354887, now seen corresponding path program 300 times [2022-01-18 14:07:49,542 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:49,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878470999] [2022-01-18 14:07:49,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:49,542 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:49,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:49,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:49,602 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:49,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878470999] [2022-01-18 14:07:49,602 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878470999] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:49,602 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:49,602 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:49,602 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571151503] [2022-01-18 14:07:49,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:49,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:49,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:49,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:49,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:49,602 INFO L87 Difference]: Start difference. First operand 926 states and 2422 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:49,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:49,804 INFO L93 Difference]: Finished difference Result 1095 states and 2837 transitions. [2022-01-18 14:07:49,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:49,804 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:49,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:49,805 INFO L225 Difference]: With dead ends: 1095 [2022-01-18 14:07:49,805 INFO L226 Difference]: Without dead ends: 1012 [2022-01-18 14:07:49,805 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:49,805 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 48 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 649 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:49,805 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 267 Invalid, 661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 649 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:49,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1012 states. [2022-01-18 14:07:49,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1012 to 914. [2022-01-18 14:07:49,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 914 states, 913 states have (on average 2.623220153340635) internal successors, (2395), 913 states have internal predecessors, (2395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:49,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 914 states to 914 states and 2395 transitions. [2022-01-18 14:07:49,814 INFO L78 Accepts]: Start accepts. Automaton has 914 states and 2395 transitions. Word has length 26 [2022-01-18 14:07:49,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:49,814 INFO L470 AbstractCegarLoop]: Abstraction has 914 states and 2395 transitions. [2022-01-18 14:07:49,814 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:49,814 INFO L276 IsEmpty]: Start isEmpty. Operand 914 states and 2395 transitions. [2022-01-18 14:07:49,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:49,815 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:49,815 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:49,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable301 [2022-01-18 14:07:49,815 INFO L402 AbstractCegarLoop]: === Iteration 303 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:49,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:49,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1304683867, now seen corresponding path program 301 times [2022-01-18 14:07:49,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:49,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325010561] [2022-01-18 14:07:49,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:49,815 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:49,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:49,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:49,874 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:49,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325010561] [2022-01-18 14:07:49,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325010561] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:49,874 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:49,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:49,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27093205] [2022-01-18 14:07:49,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:49,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:49,875 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:49,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:49,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:49,875 INFO L87 Difference]: Start difference. First operand 914 states and 2395 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:50,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:50,079 INFO L93 Difference]: Finished difference Result 1015 states and 2644 transitions. [2022-01-18 14:07:50,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:50,079 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:50,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:50,080 INFO L225 Difference]: With dead ends: 1015 [2022-01-18 14:07:50,080 INFO L226 Difference]: Without dead ends: 928 [2022-01-18 14:07:50,080 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:50,080 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 49 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 656 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:50,081 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 270 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 656 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:50,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 928 states. [2022-01-18 14:07:50,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 928 to 876. [2022-01-18 14:07:50,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 876 states, 875 states have (on average 2.6285714285714286) internal successors, (2300), 875 states have internal predecessors, (2300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:50,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 876 states to 876 states and 2300 transitions. [2022-01-18 14:07:50,088 INFO L78 Accepts]: Start accepts. Automaton has 876 states and 2300 transitions. Word has length 26 [2022-01-18 14:07:50,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:50,088 INFO L470 AbstractCegarLoop]: Abstraction has 876 states and 2300 transitions. [2022-01-18 14:07:50,088 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:50,089 INFO L276 IsEmpty]: Start isEmpty. Operand 876 states and 2300 transitions. [2022-01-18 14:07:50,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:50,089 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:50,089 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:50,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable302 [2022-01-18 14:07:50,090 INFO L402 AbstractCegarLoop]: === Iteration 304 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:50,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:50,090 INFO L85 PathProgramCache]: Analyzing trace with hash -911629735, now seen corresponding path program 302 times [2022-01-18 14:07:50,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:50,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464435279] [2022-01-18 14:07:50,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:50,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:50,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:50,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:50,156 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:50,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464435279] [2022-01-18 14:07:50,156 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464435279] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:50,156 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:50,156 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:50,156 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396538687] [2022-01-18 14:07:50,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:50,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:50,157 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:50,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:50,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:50,157 INFO L87 Difference]: Start difference. First operand 876 states and 2300 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:50,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:50,352 INFO L93 Difference]: Finished difference Result 1024 states and 2650 transitions. [2022-01-18 14:07:50,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:50,352 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:50,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:50,353 INFO L225 Difference]: With dead ends: 1024 [2022-01-18 14:07:50,353 INFO L226 Difference]: Without dead ends: 949 [2022-01-18 14:07:50,353 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:50,353 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 42 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 629 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:50,353 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 240 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 629 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:50,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 949 states. [2022-01-18 14:07:50,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 949 to 881. [2022-01-18 14:07:50,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 881 states, 880 states have (on average 2.631818181818182) internal successors, (2316), 880 states have internal predecessors, (2316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:50,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 881 states to 881 states and 2316 transitions. [2022-01-18 14:07:50,362 INFO L78 Accepts]: Start accepts. Automaton has 881 states and 2316 transitions. Word has length 26 [2022-01-18 14:07:50,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:50,362 INFO L470 AbstractCegarLoop]: Abstraction has 881 states and 2316 transitions. [2022-01-18 14:07:50,362 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:50,362 INFO L276 IsEmpty]: Start isEmpty. Operand 881 states and 2316 transitions. [2022-01-18 14:07:50,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:50,363 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:50,363 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:50,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable303 [2022-01-18 14:07:50,363 INFO L402 AbstractCegarLoop]: === Iteration 305 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:50,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:50,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1447036635, now seen corresponding path program 303 times [2022-01-18 14:07:50,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:50,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559982296] [2022-01-18 14:07:50,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:50,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:50,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:50,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:50,428 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:50,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559982296] [2022-01-18 14:07:50,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559982296] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:50,428 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:50,428 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:50,428 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708398418] [2022-01-18 14:07:50,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:50,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:50,428 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:50,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:50,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:50,428 INFO L87 Difference]: Start difference. First operand 881 states and 2316 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:50,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:50,643 INFO L93 Difference]: Finished difference Result 1013 states and 2642 transitions. [2022-01-18 14:07:50,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:50,644 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:50,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:50,645 INFO L225 Difference]: With dead ends: 1013 [2022-01-18 14:07:50,645 INFO L226 Difference]: Without dead ends: 912 [2022-01-18 14:07:50,645 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:50,645 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 47 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 675 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:50,645 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 237 Invalid, 687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 675 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:50,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 912 states. [2022-01-18 14:07:50,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 912 to 880. [2022-01-18 14:07:50,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 880 states, 879 states have (on average 2.6302616609783844) internal successors, (2312), 879 states have internal predecessors, (2312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:50,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 2312 transitions. [2022-01-18 14:07:50,653 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 2312 transitions. Word has length 26 [2022-01-18 14:07:50,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:50,653 INFO L470 AbstractCegarLoop]: Abstraction has 880 states and 2312 transitions. [2022-01-18 14:07:50,653 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:50,653 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 2312 transitions. [2022-01-18 14:07:50,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:50,654 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:50,654 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:50,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable304 [2022-01-18 14:07:50,654 INFO L402 AbstractCegarLoop]: === Iteration 306 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:50,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:50,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1814409019, now seen corresponding path program 304 times [2022-01-18 14:07:50,654 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:50,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115176182] [2022-01-18 14:07:50,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:50,654 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:50,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:50,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:50,714 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:50,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115176182] [2022-01-18 14:07:50,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115176182] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:50,714 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:50,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:50,714 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333278771] [2022-01-18 14:07:50,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:50,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:50,714 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:50,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:50,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:50,714 INFO L87 Difference]: Start difference. First operand 880 states and 2312 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:50,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:50,907 INFO L93 Difference]: Finished difference Result 1005 states and 2609 transitions. [2022-01-18 14:07:50,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:50,907 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:50,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:50,909 INFO L225 Difference]: With dead ends: 1005 [2022-01-18 14:07:50,909 INFO L226 Difference]: Without dead ends: 924 [2022-01-18 14:07:50,909 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:50,909 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 41 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:50,909 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 233 Invalid, 630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 618 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:50,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2022-01-18 14:07:50,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 882. [2022-01-18 14:07:50,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 882 states, 881 states have (on average 2.633371169125993) internal successors, (2320), 881 states have internal predecessors, (2320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:50,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 2320 transitions. [2022-01-18 14:07:50,917 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 2320 transitions. Word has length 26 [2022-01-18 14:07:50,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:50,917 INFO L470 AbstractCegarLoop]: Abstraction has 882 states and 2320 transitions. [2022-01-18 14:07:50,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:50,917 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 2320 transitions. [2022-01-18 14:07:50,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:50,918 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:50,918 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:50,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable305 [2022-01-18 14:07:50,918 INFO L402 AbstractCegarLoop]: === Iteration 307 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:50,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:50,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1118437701, now seen corresponding path program 305 times [2022-01-18 14:07:50,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:50,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195242880] [2022-01-18 14:07:50,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:50,919 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:50,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:50,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:50,978 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:50,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195242880] [2022-01-18 14:07:50,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195242880] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:50,978 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:50,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:50,979 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149434238] [2022-01-18 14:07:50,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:50,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:50,979 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:50,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:50,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:50,979 INFO L87 Difference]: Start difference. First operand 882 states and 2320 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:51,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:51,175 INFO L93 Difference]: Finished difference Result 1011 states and 2638 transitions. [2022-01-18 14:07:51,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:51,176 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:51,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:51,177 INFO L225 Difference]: With dead ends: 1011 [2022-01-18 14:07:51,177 INFO L226 Difference]: Without dead ends: 936 [2022-01-18 14:07:51,177 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:51,177 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 43 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:51,177 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 236 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:51,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 936 states. [2022-01-18 14:07:51,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 936 to 886. [2022-01-18 14:07:51,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 886 states, 885 states have (on average 2.6372881355932205) internal successors, (2334), 885 states have internal predecessors, (2334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:51,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 886 states to 886 states and 2334 transitions. [2022-01-18 14:07:51,185 INFO L78 Accepts]: Start accepts. Automaton has 886 states and 2334 transitions. Word has length 26 [2022-01-18 14:07:51,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:51,185 INFO L470 AbstractCegarLoop]: Abstraction has 886 states and 2334 transitions. [2022-01-18 14:07:51,185 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:51,185 INFO L276 IsEmpty]: Start isEmpty. Operand 886 states and 2334 transitions. [2022-01-18 14:07:51,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:51,186 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:51,186 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:51,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable306 [2022-01-18 14:07:51,186 INFO L402 AbstractCegarLoop]: === Iteration 308 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:51,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:51,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1240228669, now seen corresponding path program 306 times [2022-01-18 14:07:51,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:51,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061241944] [2022-01-18 14:07:51,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:51,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:51,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:51,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:51,246 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:51,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061241944] [2022-01-18 14:07:51,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061241944] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:51,246 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:51,246 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:51,246 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423915278] [2022-01-18 14:07:51,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:51,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:51,246 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:51,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:51,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:51,246 INFO L87 Difference]: Start difference. First operand 886 states and 2334 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:51,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:51,457 INFO L93 Difference]: Finished difference Result 1026 states and 2678 transitions. [2022-01-18 14:07:51,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:51,457 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:51,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:51,458 INFO L225 Difference]: With dead ends: 1026 [2022-01-18 14:07:51,459 INFO L226 Difference]: Without dead ends: 925 [2022-01-18 14:07:51,459 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:51,459 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 48 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 689 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:51,459 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 233 Invalid, 699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 689 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:51,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states. [2022-01-18 14:07:51,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 883. [2022-01-18 14:07:51,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 882 states have (on average 2.6360544217687076) internal successors, (2325), 882 states have internal predecessors, (2325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:51,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 2325 transitions. [2022-01-18 14:07:51,467 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 2325 transitions. Word has length 26 [2022-01-18 14:07:51,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:51,467 INFO L470 AbstractCegarLoop]: Abstraction has 883 states and 2325 transitions. [2022-01-18 14:07:51,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:51,467 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 2325 transitions. [2022-01-18 14:07:51,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:51,468 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:51,468 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:51,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable307 [2022-01-18 14:07:51,468 INFO L402 AbstractCegarLoop]: === Iteration 309 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:51,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:51,468 INFO L85 PathProgramCache]: Analyzing trace with hash 583065147, now seen corresponding path program 307 times [2022-01-18 14:07:51,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:51,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329504924] [2022-01-18 14:07:51,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:51,468 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:51,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:51,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:51,527 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:51,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329504924] [2022-01-18 14:07:51,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329504924] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:51,527 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:51,527 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:51,527 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410759495] [2022-01-18 14:07:51,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:51,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:51,528 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:51,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:51,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:51,528 INFO L87 Difference]: Start difference. First operand 883 states and 2325 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:51,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:51,723 INFO L93 Difference]: Finished difference Result 993 states and 2589 transitions. [2022-01-18 14:07:51,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:51,723 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:51,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:51,724 INFO L225 Difference]: With dead ends: 993 [2022-01-18 14:07:51,724 INFO L226 Difference]: Without dead ends: 912 [2022-01-18 14:07:51,725 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:51,725 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 43 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:51,725 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 233 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 638 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:51,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 912 states. [2022-01-18 14:07:51,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 912 to 884. [2022-01-18 14:07:51,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 884 states, 883 states have (on average 2.6342015855039635) internal successors, (2326), 883 states have internal predecessors, (2326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:51,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 884 states to 884 states and 2326 transitions. [2022-01-18 14:07:51,732 INFO L78 Accepts]: Start accepts. Automaton has 884 states and 2326 transitions. Word has length 26 [2022-01-18 14:07:51,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:51,733 INFO L470 AbstractCegarLoop]: Abstraction has 884 states and 2326 transitions. [2022-01-18 14:07:51,733 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:51,733 INFO L276 IsEmpty]: Start isEmpty. Operand 884 states and 2326 transitions. [2022-01-18 14:07:51,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:51,733 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:51,734 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:51,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable308 [2022-01-18 14:07:51,734 INFO L402 AbstractCegarLoop]: === Iteration 310 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:51,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:51,734 INFO L85 PathProgramCache]: Analyzing trace with hash -745500775, now seen corresponding path program 308 times [2022-01-18 14:07:51,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:51,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942429696] [2022-01-18 14:07:51,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:51,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:51,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:51,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:51,793 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:51,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942429696] [2022-01-18 14:07:51,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942429696] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:51,793 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:51,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:51,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306409761] [2022-01-18 14:07:51,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:51,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:51,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:51,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:51,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:51,794 INFO L87 Difference]: Start difference. First operand 884 states and 2326 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:52,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:52,010 INFO L93 Difference]: Finished difference Result 999 states and 2604 transitions. [2022-01-18 14:07:52,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:52,010 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:52,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:52,011 INFO L225 Difference]: With dead ends: 999 [2022-01-18 14:07:52,011 INFO L226 Difference]: Without dead ends: 890 [2022-01-18 14:07:52,011 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:52,011 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 50 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:52,011 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 235 Invalid, 712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 700 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:52,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 890 states. [2022-01-18 14:07:52,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 890 to 878. [2022-01-18 14:07:52,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 878 states, 877 states have (on average 2.637400228050171) internal successors, (2313), 877 states have internal predecessors, (2313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:52,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 2313 transitions. [2022-01-18 14:07:52,019 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 2313 transitions. Word has length 26 [2022-01-18 14:07:52,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:52,019 INFO L470 AbstractCegarLoop]: Abstraction has 878 states and 2313 transitions. [2022-01-18 14:07:52,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:52,019 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 2313 transitions. [2022-01-18 14:07:52,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:52,020 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:52,020 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:52,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable309 [2022-01-18 14:07:52,020 INFO L402 AbstractCegarLoop]: === Iteration 311 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:52,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:52,020 INFO L85 PathProgramCache]: Analyzing trace with hash -968140131, now seen corresponding path program 309 times [2022-01-18 14:07:52,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:52,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193370022] [2022-01-18 14:07:52,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:52,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:52,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:52,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:52,080 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:52,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193370022] [2022-01-18 14:07:52,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193370022] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:52,081 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:52,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:52,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342994485] [2022-01-18 14:07:52,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:52,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:52,081 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:52,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:52,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:52,081 INFO L87 Difference]: Start difference. First operand 878 states and 2313 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:52,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:52,275 INFO L93 Difference]: Finished difference Result 1017 states and 2638 transitions. [2022-01-18 14:07:52,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:52,275 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:52,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:52,276 INFO L225 Difference]: With dead ends: 1017 [2022-01-18 14:07:52,276 INFO L226 Difference]: Without dead ends: 938 [2022-01-18 14:07:52,276 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:52,277 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 42 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 630 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:52,277 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 231 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 630 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:52,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 938 states. [2022-01-18 14:07:52,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 938 to 878. [2022-01-18 14:07:52,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 878 states, 877 states have (on average 2.637400228050171) internal successors, (2313), 877 states have internal predecessors, (2313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:52,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 2313 transitions. [2022-01-18 14:07:52,285 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 2313 transitions. Word has length 26 [2022-01-18 14:07:52,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:52,285 INFO L470 AbstractCegarLoop]: Abstraction has 878 states and 2313 transitions. [2022-01-18 14:07:52,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:52,285 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 2313 transitions. [2022-01-18 14:07:52,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:52,286 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:52,286 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:52,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable310 [2022-01-18 14:07:52,286 INFO L402 AbstractCegarLoop]: === Iteration 312 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:52,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:52,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1934682619, now seen corresponding path program 310 times [2022-01-18 14:07:52,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:52,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000768779] [2022-01-18 14:07:52,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:52,286 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:52,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:52,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:52,348 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:52,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000768779] [2022-01-18 14:07:52,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000768779] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:52,348 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:52,348 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:52,348 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299791575] [2022-01-18 14:07:52,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:52,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:52,348 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:52,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:52,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:52,349 INFO L87 Difference]: Start difference. First operand 878 states and 2313 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:52,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:52,542 INFO L93 Difference]: Finished difference Result 986 states and 2573 transitions. [2022-01-18 14:07:52,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:52,542 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:52,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:52,543 INFO L225 Difference]: With dead ends: 986 [2022-01-18 14:07:52,544 INFO L226 Difference]: Without dead ends: 900 [2022-01-18 14:07:52,544 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:52,544 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 43 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:52,544 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 234 Invalid, 636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 628 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:52,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 900 states. [2022-01-18 14:07:52,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 900 to 871. [2022-01-18 14:07:52,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 871 states, 870 states have (on average 2.6390804597701147) internal successors, (2296), 870 states have internal predecessors, (2296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:52,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 871 states to 871 states and 2296 transitions. [2022-01-18 14:07:52,551 INFO L78 Accepts]: Start accepts. Automaton has 871 states and 2296 transitions. Word has length 26 [2022-01-18 14:07:52,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:52,551 INFO L470 AbstractCegarLoop]: Abstraction has 871 states and 2296 transitions. [2022-01-18 14:07:52,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:52,552 INFO L276 IsEmpty]: Start isEmpty. Operand 871 states and 2296 transitions. [2022-01-18 14:07:52,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:52,552 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:52,552 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:52,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable311 [2022-01-18 14:07:52,553 INFO L402 AbstractCegarLoop]: === Iteration 313 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:52,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:52,553 INFO L85 PathProgramCache]: Analyzing trace with hash -718854477, now seen corresponding path program 311 times [2022-01-18 14:07:52,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:52,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056940917] [2022-01-18 14:07:52,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:52,553 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:52,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:52,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:52,610 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:52,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056940917] [2022-01-18 14:07:52,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056940917] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:52,610 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:52,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:52,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803419963] [2022-01-18 14:07:52,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:52,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:52,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:52,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:52,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:52,611 INFO L87 Difference]: Start difference. First operand 871 states and 2296 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:52,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:52,822 INFO L93 Difference]: Finished difference Result 1044 states and 2714 transitions. [2022-01-18 14:07:52,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:52,822 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:52,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:52,823 INFO L225 Difference]: With dead ends: 1044 [2022-01-18 14:07:52,823 INFO L226 Difference]: Without dead ends: 907 [2022-01-18 14:07:52,823 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:52,823 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 66 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 699 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:52,823 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 321 Invalid, 709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 699 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:52,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2022-01-18 14:07:52,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 883. [2022-01-18 14:07:52,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 882 states have (on average 2.6258503401360542) internal successors, (2316), 882 states have internal predecessors, (2316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:52,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 2316 transitions. [2022-01-18 14:07:52,831 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 2316 transitions. Word has length 26 [2022-01-18 14:07:52,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:52,831 INFO L470 AbstractCegarLoop]: Abstraction has 883 states and 2316 transitions. [2022-01-18 14:07:52,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:52,831 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 2316 transitions. [2022-01-18 14:07:52,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:52,832 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:52,832 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:52,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable312 [2022-01-18 14:07:52,832 INFO L402 AbstractCegarLoop]: === Iteration 314 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:52,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:52,832 INFO L85 PathProgramCache]: Analyzing trace with hash -219428363, now seen corresponding path program 312 times [2022-01-18 14:07:52,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:52,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761258410] [2022-01-18 14:07:52,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:52,833 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:52,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:52,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:52,896 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:52,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761258410] [2022-01-18 14:07:52,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761258410] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:52,896 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:52,896 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:52,896 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910116748] [2022-01-18 14:07:52,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:52,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:52,896 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:52,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:52,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:52,897 INFO L87 Difference]: Start difference. First operand 883 states and 2316 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:53,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:53,115 INFO L93 Difference]: Finished difference Result 1036 states and 2690 transitions. [2022-01-18 14:07:53,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:53,115 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:53,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:53,116 INFO L225 Difference]: With dead ends: 1036 [2022-01-18 14:07:53,116 INFO L226 Difference]: Without dead ends: 910 [2022-01-18 14:07:53,117 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:53,117 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 60 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 705 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:53,117 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 299 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 705 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:53,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 910 states. [2022-01-18 14:07:53,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 910 to 896. [2022-01-18 14:07:53,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 896 states, 895 states have (on average 2.611173184357542) internal successors, (2337), 895 states have internal predecessors, (2337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:53,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 896 states to 896 states and 2337 transitions. [2022-01-18 14:07:53,125 INFO L78 Accepts]: Start accepts. Automaton has 896 states and 2337 transitions. Word has length 26 [2022-01-18 14:07:53,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:53,125 INFO L470 AbstractCegarLoop]: Abstraction has 896 states and 2337 transitions. [2022-01-18 14:07:53,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:53,125 INFO L276 IsEmpty]: Start isEmpty. Operand 896 states and 2337 transitions. [2022-01-18 14:07:53,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:53,126 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:53,126 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:53,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable313 [2022-01-18 14:07:53,126 INFO L402 AbstractCegarLoop]: === Iteration 315 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:53,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:53,126 INFO L85 PathProgramCache]: Analyzing trace with hash 701147603, now seen corresponding path program 313 times [2022-01-18 14:07:53,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:53,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995045891] [2022-01-18 14:07:53,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:53,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:53,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:53,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:53,184 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:53,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995045891] [2022-01-18 14:07:53,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995045891] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:53,184 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:53,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:53,184 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772602468] [2022-01-18 14:07:53,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:53,184 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:53,184 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:53,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:53,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:53,185 INFO L87 Difference]: Start difference. First operand 896 states and 2337 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:53,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:53,399 INFO L93 Difference]: Finished difference Result 1048 states and 2702 transitions. [2022-01-18 14:07:53,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:53,399 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:53,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:53,400 INFO L225 Difference]: With dead ends: 1048 [2022-01-18 14:07:53,400 INFO L226 Difference]: Without dead ends: 914 [2022-01-18 14:07:53,400 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:53,401 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 60 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 703 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:53,401 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 294 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 703 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:53,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 914 states. [2022-01-18 14:07:53,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 914 to 884. [2022-01-18 14:07:53,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 884 states, 883 states have (on average 2.6104190260475653) internal successors, (2305), 883 states have internal predecessors, (2305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:53,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 884 states to 884 states and 2305 transitions. [2022-01-18 14:07:53,408 INFO L78 Accepts]: Start accepts. Automaton has 884 states and 2305 transitions. Word has length 26 [2022-01-18 14:07:53,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:53,408 INFO L470 AbstractCegarLoop]: Abstraction has 884 states and 2305 transitions. [2022-01-18 14:07:53,409 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:53,409 INFO L276 IsEmpty]: Start isEmpty. Operand 884 states and 2305 transitions. [2022-01-18 14:07:53,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:53,409 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:53,409 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:53,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable314 [2022-01-18 14:07:53,410 INFO L402 AbstractCegarLoop]: === Iteration 316 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:53,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:53,410 INFO L85 PathProgramCache]: Analyzing trace with hash -40973687, now seen corresponding path program 314 times [2022-01-18 14:07:53,410 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:53,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367632466] [2022-01-18 14:07:53,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:53,410 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:53,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:53,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:53,477 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:53,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367632466] [2022-01-18 14:07:53,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367632466] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:53,477 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:53,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:53,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444377755] [2022-01-18 14:07:53,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:53,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:53,478 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:53,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:53,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:53,478 INFO L87 Difference]: Start difference. First operand 884 states and 2305 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:53,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:53,688 INFO L93 Difference]: Finished difference Result 1011 states and 2623 transitions. [2022-01-18 14:07:53,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:53,689 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:53,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:53,690 INFO L225 Difference]: With dead ends: 1011 [2022-01-18 14:07:53,690 INFO L226 Difference]: Without dead ends: 865 [2022-01-18 14:07:53,690 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:53,690 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 59 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 692 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:53,690 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 296 Invalid, 704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 692 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:53,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2022-01-18 14:07:53,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 845. [2022-01-18 14:07:53,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 845 states, 844 states have (on average 2.625592417061611) internal successors, (2216), 844 states have internal predecessors, (2216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:53,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 845 states to 845 states and 2216 transitions. [2022-01-18 14:07:53,698 INFO L78 Accepts]: Start accepts. Automaton has 845 states and 2216 transitions. Word has length 26 [2022-01-18 14:07:53,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:53,698 INFO L470 AbstractCegarLoop]: Abstraction has 845 states and 2216 transitions. [2022-01-18 14:07:53,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:53,698 INFO L276 IsEmpty]: Start isEmpty. Operand 845 states and 2216 transitions. [2022-01-18 14:07:53,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:53,699 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:53,699 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:53,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable315 [2022-01-18 14:07:53,699 INFO L402 AbstractCegarLoop]: === Iteration 317 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:53,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:53,699 INFO L85 PathProgramCache]: Analyzing trace with hash 164441119, now seen corresponding path program 315 times [2022-01-18 14:07:53,699 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:53,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346018485] [2022-01-18 14:07:53,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:53,699 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:53,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:53,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:53,751 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:53,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346018485] [2022-01-18 14:07:53,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346018485] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:53,751 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:53,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:07:53,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416500435] [2022-01-18 14:07:53,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:53,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:07:53,751 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:53,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:07:53,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:53,751 INFO L87 Difference]: Start difference. First operand 845 states and 2216 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:53,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:53,902 INFO L93 Difference]: Finished difference Result 978 states and 2521 transitions. [2022-01-18 14:07:53,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:07:53,903 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:53,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:53,904 INFO L225 Difference]: With dead ends: 978 [2022-01-18 14:07:53,904 INFO L226 Difference]: Without dead ends: 883 [2022-01-18 14:07:53,904 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:53,904 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 45 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:53,904 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 217 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 14:07:53,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2022-01-18 14:07:53,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 845. [2022-01-18 14:07:53,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 845 states, 844 states have (on average 2.6208530805687205) internal successors, (2212), 844 states have internal predecessors, (2212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:53,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 845 states to 845 states and 2212 transitions. [2022-01-18 14:07:53,912 INFO L78 Accepts]: Start accepts. Automaton has 845 states and 2212 transitions. Word has length 26 [2022-01-18 14:07:53,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:53,912 INFO L470 AbstractCegarLoop]: Abstraction has 845 states and 2212 transitions. [2022-01-18 14:07:53,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:53,912 INFO L276 IsEmpty]: Start isEmpty. Operand 845 states and 2212 transitions. [2022-01-18 14:07:53,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:53,913 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:53,913 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:53,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable316 [2022-01-18 14:07:53,913 INFO L402 AbstractCegarLoop]: === Iteration 318 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:53,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:53,913 INFO L85 PathProgramCache]: Analyzing trace with hash 839941661, now seen corresponding path program 316 times [2022-01-18 14:07:53,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:53,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781601303] [2022-01-18 14:07:53,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:53,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:53,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:53,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:53,972 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:53,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781601303] [2022-01-18 14:07:53,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781601303] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:53,973 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:53,973 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:53,973 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585468809] [2022-01-18 14:07:53,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:53,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:53,973 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:53,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:53,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:53,973 INFO L87 Difference]: Start difference. First operand 845 states and 2212 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:54,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:54,169 INFO L93 Difference]: Finished difference Result 986 states and 2546 transitions. [2022-01-18 14:07:54,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:54,169 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:54,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:54,170 INFO L225 Difference]: With dead ends: 986 [2022-01-18 14:07:54,170 INFO L226 Difference]: Without dead ends: 911 [2022-01-18 14:07:54,170 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:54,170 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 42 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:54,170 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 240 Invalid, 648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 638 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:54,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 911 states. [2022-01-18 14:07:54,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 911 to 857. [2022-01-18 14:07:54,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 857 states, 856 states have (on average 2.610981308411215) internal successors, (2235), 856 states have internal predecessors, (2235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:54,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 857 states to 857 states and 2235 transitions. [2022-01-18 14:07:54,178 INFO L78 Accepts]: Start accepts. Automaton has 857 states and 2235 transitions. Word has length 26 [2022-01-18 14:07:54,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:54,178 INFO L470 AbstractCegarLoop]: Abstraction has 857 states and 2235 transitions. [2022-01-18 14:07:54,178 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:54,178 INFO L276 IsEmpty]: Start isEmpty. Operand 857 states and 2235 transitions. [2022-01-18 14:07:54,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:54,179 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:54,179 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:54,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable317 [2022-01-18 14:07:54,179 INFO L402 AbstractCegarLoop]: === Iteration 319 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:54,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:54,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1096359265, now seen corresponding path program 317 times [2022-01-18 14:07:54,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:54,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075397470] [2022-01-18 14:07:54,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:54,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:54,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:54,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:54,242 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:54,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075397470] [2022-01-18 14:07:54,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075397470] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:54,242 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:54,243 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:54,243 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982539203] [2022-01-18 14:07:54,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:54,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:54,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:54,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:54,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:54,243 INFO L87 Difference]: Start difference. First operand 857 states and 2235 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:54,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:54,454 INFO L93 Difference]: Finished difference Result 988 states and 2567 transitions. [2022-01-18 14:07:54,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:54,454 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:54,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:54,455 INFO L225 Difference]: With dead ends: 988 [2022-01-18 14:07:54,455 INFO L226 Difference]: Without dead ends: 883 [2022-01-18 14:07:54,455 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:54,455 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 47 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:54,455 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 235 Invalid, 697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:54,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2022-01-18 14:07:54,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 852. [2022-01-18 14:07:54,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 852 states, 851 states have (on average 2.602820211515864) internal successors, (2215), 851 states have internal predecessors, (2215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:54,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 852 states to 852 states and 2215 transitions. [2022-01-18 14:07:54,463 INFO L78 Accepts]: Start accepts. Automaton has 852 states and 2215 transitions. Word has length 26 [2022-01-18 14:07:54,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:54,463 INFO L470 AbstractCegarLoop]: Abstraction has 852 states and 2215 transitions. [2022-01-18 14:07:54,463 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:54,463 INFO L276 IsEmpty]: Start isEmpty. Operand 852 states and 2215 transitions. [2022-01-18 14:07:54,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:54,464 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:54,464 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:54,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable318 [2022-01-18 14:07:54,464 INFO L402 AbstractCegarLoop]: === Iteration 320 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:54,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:54,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1753522787, now seen corresponding path program 318 times [2022-01-18 14:07:54,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:54,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265403728] [2022-01-18 14:07:54,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:54,464 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:54,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:54,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:54,526 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:54,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265403728] [2022-01-18 14:07:54,526 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265403728] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:54,526 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:54,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:54,526 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159255087] [2022-01-18 14:07:54,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:54,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:54,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:54,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:54,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:54,527 INFO L87 Difference]: Start difference. First operand 852 states and 2215 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:54,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:54,721 INFO L93 Difference]: Finished difference Result 953 states and 2465 transitions. [2022-01-18 14:07:54,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:54,722 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:54,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:54,723 INFO L225 Difference]: With dead ends: 953 [2022-01-18 14:07:54,723 INFO L226 Difference]: Without dead ends: 872 [2022-01-18 14:07:54,723 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:54,723 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 42 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 637 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:54,723 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 235 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 637 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:54,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 872 states. [2022-01-18 14:07:54,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 872 to 856. [2022-01-18 14:07:54,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 856 states, 855 states have (on average 2.601169590643275) internal successors, (2224), 855 states have internal predecessors, (2224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:54,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 856 states to 856 states and 2224 transitions. [2022-01-18 14:07:54,730 INFO L78 Accepts]: Start accepts. Automaton has 856 states and 2224 transitions. Word has length 26 [2022-01-18 14:07:54,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:54,731 INFO L470 AbstractCegarLoop]: Abstraction has 856 states and 2224 transitions. [2022-01-18 14:07:54,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:54,731 INFO L276 IsEmpty]: Start isEmpty. Operand 856 states and 2224 transitions. [2022-01-18 14:07:54,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:54,731 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:54,731 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:54,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable319 [2022-01-18 14:07:54,732 INFO L402 AbstractCegarLoop]: === Iteration 321 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:54,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:54,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1212878587, now seen corresponding path program 319 times [2022-01-18 14:07:54,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:54,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037953751] [2022-01-18 14:07:54,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:54,732 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:54,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:54,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:54,791 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:54,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037953751] [2022-01-18 14:07:54,791 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037953751] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:54,791 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:54,791 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:54,791 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034507112] [2022-01-18 14:07:54,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:54,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:54,792 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:54,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:54,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:54,792 INFO L87 Difference]: Start difference. First operand 856 states and 2224 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:55,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:55,004 INFO L93 Difference]: Finished difference Result 967 states and 2502 transitions. [2022-01-18 14:07:55,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:55,004 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:55,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:55,005 INFO L225 Difference]: With dead ends: 967 [2022-01-18 14:07:55,006 INFO L226 Difference]: Without dead ends: 864 [2022-01-18 14:07:55,006 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:55,006 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 49 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 696 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:55,006 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 233 Invalid, 705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 696 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:55,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2022-01-18 14:07:55,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 853. [2022-01-18 14:07:55,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 853 states, 852 states have (on average 2.603286384976526) internal successors, (2218), 852 states have internal predecessors, (2218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:55,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 853 states to 853 states and 2218 transitions. [2022-01-18 14:07:55,014 INFO L78 Accepts]: Start accepts. Automaton has 853 states and 2218 transitions. Word has length 26 [2022-01-18 14:07:55,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:55,014 INFO L470 AbstractCegarLoop]: Abstraction has 853 states and 2218 transitions. [2022-01-18 14:07:55,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:55,014 INFO L276 IsEmpty]: Start isEmpty. Operand 853 states and 2218 transitions. [2022-01-18 14:07:55,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:55,015 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:55,015 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:55,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable320 [2022-01-18 14:07:55,015 INFO L402 AbstractCegarLoop]: === Iteration 322 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:55,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:55,015 INFO L85 PathProgramCache]: Analyzing trace with hash 990239231, now seen corresponding path program 320 times [2022-01-18 14:07:55,015 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:55,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830233119] [2022-01-18 14:07:55,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:55,015 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:55,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:55,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:55,075 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:55,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830233119] [2022-01-18 14:07:55,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830233119] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:55,075 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:55,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:55,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85078981] [2022-01-18 14:07:55,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:55,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:55,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:55,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:55,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:55,076 INFO L87 Difference]: Start difference. First operand 853 states and 2218 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:55,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:55,266 INFO L93 Difference]: Finished difference Result 988 states and 2530 transitions. [2022-01-18 14:07:55,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:55,266 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:55,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:55,267 INFO L225 Difference]: With dead ends: 988 [2022-01-18 14:07:55,267 INFO L226 Difference]: Without dead ends: 905 [2022-01-18 14:07:55,267 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:55,267 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 41 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:55,267 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 235 Invalid, 629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 617 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:55,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 905 states. [2022-01-18 14:07:55,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 905 to 849. [2022-01-18 14:07:55,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 849 states, 848 states have (on average 2.6014150943396226) internal successors, (2206), 848 states have internal predecessors, (2206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:55,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 849 states to 849 states and 2206 transitions. [2022-01-18 14:07:55,279 INFO L78 Accepts]: Start accepts. Automaton has 849 states and 2206 transitions. Word has length 26 [2022-01-18 14:07:55,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:55,279 INFO L470 AbstractCegarLoop]: Abstraction has 849 states and 2206 transitions. [2022-01-18 14:07:55,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:55,279 INFO L276 IsEmpty]: Start isEmpty. Operand 849 states and 2206 transitions. [2022-01-18 14:07:55,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:55,280 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:55,280 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:55,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable321 [2022-01-18 14:07:55,280 INFO L402 AbstractCegarLoop]: === Iteration 323 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:55,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:55,280 INFO L85 PathProgramCache]: Analyzing trace with hash -401905315, now seen corresponding path program 321 times [2022-01-18 14:07:55,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:55,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890957627] [2022-01-18 14:07:55,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:55,280 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:55,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:55,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:55,339 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:55,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890957627] [2022-01-18 14:07:55,339 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890957627] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:55,339 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:55,339 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:55,339 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143372151] [2022-01-18 14:07:55,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:55,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:55,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:55,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:55,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:55,340 INFO L87 Difference]: Start difference. First operand 849 states and 2206 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:55,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:55,530 INFO L93 Difference]: Finished difference Result 951 states and 2457 transitions. [2022-01-18 14:07:55,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:55,531 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:55,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:55,532 INFO L225 Difference]: With dead ends: 951 [2022-01-18 14:07:55,532 INFO L226 Difference]: Without dead ends: 868 [2022-01-18 14:07:55,532 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:55,532 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 42 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:55,532 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 236 Invalid, 635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 627 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:55,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 868 states. [2022-01-18 14:07:55,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 868 to 848. [2022-01-18 14:07:55,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 848 states, 847 states have (on average 2.5985832349468714) internal successors, (2201), 847 states have internal predecessors, (2201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:55,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 2201 transitions. [2022-01-18 14:07:55,539 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 2201 transitions. Word has length 26 [2022-01-18 14:07:55,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:55,539 INFO L470 AbstractCegarLoop]: Abstraction has 848 states and 2201 transitions. [2022-01-18 14:07:55,539 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:55,539 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 2201 transitions. [2022-01-18 14:07:55,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:55,540 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:55,540 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:55,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable322 [2022-01-18 14:07:55,540 INFO L402 AbstractCegarLoop]: === Iteration 324 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:55,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:55,541 INFO L85 PathProgramCache]: Analyzing trace with hash -352542491, now seen corresponding path program 322 times [2022-01-18 14:07:55,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:55,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236597822] [2022-01-18 14:07:55,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:55,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:55,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:55,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:55,599 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:55,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236597822] [2022-01-18 14:07:55,599 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236597822] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:55,599 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:55,599 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:55,599 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504613670] [2022-01-18 14:07:55,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:55,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:55,599 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:55,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:55,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:55,600 INFO L87 Difference]: Start difference. First operand 848 states and 2201 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:55,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:55,808 INFO L93 Difference]: Finished difference Result 963 states and 2484 transitions. [2022-01-18 14:07:55,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:55,808 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:55,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:55,809 INFO L225 Difference]: With dead ends: 963 [2022-01-18 14:07:55,809 INFO L226 Difference]: Without dead ends: 853 [2022-01-18 14:07:55,809 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:55,809 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 49 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 690 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:55,809 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 237 Invalid, 701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 690 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:55,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 853 states. [2022-01-18 14:07:55,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 831. [2022-01-18 14:07:55,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 831 states, 830 states have (on average 2.603614457831325) internal successors, (2161), 830 states have internal predecessors, (2161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:55,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 2161 transitions. [2022-01-18 14:07:55,817 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 2161 transitions. Word has length 26 [2022-01-18 14:07:55,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:55,817 INFO L470 AbstractCegarLoop]: Abstraction has 831 states and 2161 transitions. [2022-01-18 14:07:55,817 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:55,817 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 2161 transitions. [2022-01-18 14:07:55,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:55,818 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:55,818 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:55,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable323 [2022-01-18 14:07:55,818 INFO L402 AbstractCegarLoop]: === Iteration 325 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:55,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:55,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1480666419, now seen corresponding path program 323 times [2022-01-18 14:07:55,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:55,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436059126] [2022-01-18 14:07:55,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:55,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:55,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:55,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:55,885 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:55,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436059126] [2022-01-18 14:07:55,885 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436059126] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:55,885 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:55,885 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:55,885 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190389579] [2022-01-18 14:07:55,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:55,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:55,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:55,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:55,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:55,886 INFO L87 Difference]: Start difference. First operand 831 states and 2161 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:56,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:56,108 INFO L93 Difference]: Finished difference Result 964 states and 2472 transitions. [2022-01-18 14:07:56,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:56,108 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:56,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:56,110 INFO L225 Difference]: With dead ends: 964 [2022-01-18 14:07:56,110 INFO L226 Difference]: Without dead ends: 883 [2022-01-18 14:07:56,110 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:56,110 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 48 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 647 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:56,110 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 271 Invalid, 657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 647 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:56,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2022-01-18 14:07:56,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 827. [2022-01-18 14:07:56,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 827 states, 826 states have (on average 2.6053268765133173) internal successors, (2152), 826 states have internal predecessors, (2152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:56,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 827 states to 827 states and 2152 transitions. [2022-01-18 14:07:56,117 INFO L78 Accepts]: Start accepts. Automaton has 827 states and 2152 transitions. Word has length 26 [2022-01-18 14:07:56,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:56,117 INFO L470 AbstractCegarLoop]: Abstraction has 827 states and 2152 transitions. [2022-01-18 14:07:56,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:56,118 INFO L276 IsEmpty]: Start isEmpty. Operand 827 states and 2152 transitions. [2022-01-18 14:07:56,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:56,118 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:56,118 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:56,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable324 [2022-01-18 14:07:56,119 INFO L402 AbstractCegarLoop]: === Iteration 326 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:56,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:56,119 INFO L85 PathProgramCache]: Analyzing trace with hash 152100497, now seen corresponding path program 324 times [2022-01-18 14:07:56,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:56,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872013023] [2022-01-18 14:07:56,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:56,119 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:56,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:56,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:56,181 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:56,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872013023] [2022-01-18 14:07:56,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872013023] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:56,181 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:56,181 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:56,181 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101568954] [2022-01-18 14:07:56,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:56,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:56,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:56,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:56,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:56,182 INFO L87 Difference]: Start difference. First operand 827 states and 2152 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:56,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:56,405 INFO L93 Difference]: Finished difference Result 932 states and 2411 transitions. [2022-01-18 14:07:56,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:56,406 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:56,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:56,407 INFO L225 Difference]: With dead ends: 932 [2022-01-18 14:07:56,407 INFO L226 Difference]: Without dead ends: 823 [2022-01-18 14:07:56,407 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:56,407 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 55 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:56,407 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 269 Invalid, 708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 698 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:56,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 823 states. [2022-01-18 14:07:56,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 823 to 803. [2022-01-18 14:07:56,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 803 states, 802 states have (on average 2.614713216957606) internal successors, (2097), 802 states have internal predecessors, (2097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:56,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 2097 transitions. [2022-01-18 14:07:56,414 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 2097 transitions. Word has length 26 [2022-01-18 14:07:56,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:56,414 INFO L470 AbstractCegarLoop]: Abstraction has 803 states and 2097 transitions. [2022-01-18 14:07:56,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:56,414 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 2097 transitions. [2022-01-18 14:07:56,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:56,415 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:56,415 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:56,415 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable325 [2022-01-18 14:07:56,415 INFO L402 AbstractCegarLoop]: === Iteration 327 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:56,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:56,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1983661419, now seen corresponding path program 325 times [2022-01-18 14:07:56,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:56,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948760347] [2022-01-18 14:07:56,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:56,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:56,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:56,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:56,476 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:56,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948760347] [2022-01-18 14:07:56,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948760347] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:56,476 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:56,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:56,476 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281913164] [2022-01-18 14:07:56,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:56,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:56,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:56,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:56,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:56,476 INFO L87 Difference]: Start difference. First operand 803 states and 2097 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:56,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:56,659 INFO L93 Difference]: Finished difference Result 925 states and 2372 transitions. [2022-01-18 14:07:56,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:56,659 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:56,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:56,660 INFO L225 Difference]: With dead ends: 925 [2022-01-18 14:07:56,660 INFO L226 Difference]: Without dead ends: 828 [2022-01-18 14:07:56,660 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:56,660 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 47 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:56,660 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 255 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:56,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828 states. [2022-01-18 14:07:56,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 828 to 788. [2022-01-18 14:07:56,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 788 states, 787 states have (on average 2.60864040660737) internal successors, (2053), 787 states have internal predecessors, (2053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:56,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 788 states to 788 states and 2053 transitions. [2022-01-18 14:07:56,667 INFO L78 Accepts]: Start accepts. Automaton has 788 states and 2053 transitions. Word has length 26 [2022-01-18 14:07:56,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:56,668 INFO L470 AbstractCegarLoop]: Abstraction has 788 states and 2053 transitions. [2022-01-18 14:07:56,668 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:56,668 INFO L276 IsEmpty]: Start isEmpty. Operand 788 states and 2053 transitions. [2022-01-18 14:07:56,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:56,668 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:56,668 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:56,668 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable326 [2022-01-18 14:07:56,669 INFO L402 AbstractCegarLoop]: === Iteration 328 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:56,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:56,669 INFO L85 PathProgramCache]: Analyzing trace with hash -1032379477, now seen corresponding path program 326 times [2022-01-18 14:07:56,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:56,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975372759] [2022-01-18 14:07:56,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:56,669 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:56,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:56,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:56,720 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:56,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975372759] [2022-01-18 14:07:56,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975372759] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:56,720 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:56,720 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:07:56,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011414941] [2022-01-18 14:07:56,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:56,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:07:56,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:56,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:07:56,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:56,721 INFO L87 Difference]: Start difference. First operand 788 states and 2053 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:56,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:56,871 INFO L93 Difference]: Finished difference Result 919 states and 2353 transitions. [2022-01-18 14:07:56,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:07:56,871 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:56,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:56,872 INFO L225 Difference]: With dead ends: 919 [2022-01-18 14:07:56,872 INFO L226 Difference]: Without dead ends: 826 [2022-01-18 14:07:56,872 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:07:56,872 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 45 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:56,872 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 219 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 14:07:56,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2022-01-18 14:07:56,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 788. [2022-01-18 14:07:56,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 788 states, 787 states have (on average 2.6035578144853875) internal successors, (2049), 787 states have internal predecessors, (2049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:56,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 788 states to 788 states and 2049 transitions. [2022-01-18 14:07:56,879 INFO L78 Accepts]: Start accepts. Automaton has 788 states and 2049 transitions. Word has length 26 [2022-01-18 14:07:56,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:56,879 INFO L470 AbstractCegarLoop]: Abstraction has 788 states and 2049 transitions. [2022-01-18 14:07:56,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:56,879 INFO L276 IsEmpty]: Start isEmpty. Operand 788 states and 2049 transitions. [2022-01-18 14:07:56,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:56,880 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:56,880 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:56,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable327 [2022-01-18 14:07:56,880 INFO L402 AbstractCegarLoop]: === Iteration 329 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:56,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:56,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1326286893, now seen corresponding path program 327 times [2022-01-18 14:07:56,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:56,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328111642] [2022-01-18 14:07:56,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:56,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:56,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:56,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:56,939 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:56,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328111642] [2022-01-18 14:07:56,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328111642] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:56,939 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:56,939 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:56,939 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397107298] [2022-01-18 14:07:56,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:56,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:56,939 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:56,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:56,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:56,940 INFO L87 Difference]: Start difference. First operand 788 states and 2049 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:57,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:57,135 INFO L93 Difference]: Finished difference Result 935 states and 2392 transitions. [2022-01-18 14:07:57,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:57,136 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:57,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:57,136 INFO L225 Difference]: With dead ends: 935 [2022-01-18 14:07:57,136 INFO L226 Difference]: Without dead ends: 666 [2022-01-18 14:07:57,137 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:57,137 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 59 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 637 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:57,137 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 278 Invalid, 649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 637 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:57,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2022-01-18 14:07:57,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 594. [2022-01-18 14:07:57,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 594 states, 593 states have (on average 2.5548060708263067) internal successors, (1515), 593 states have internal predecessors, (1515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:57,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 1515 transitions. [2022-01-18 14:07:57,142 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 1515 transitions. Word has length 26 [2022-01-18 14:07:57,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:57,142 INFO L470 AbstractCegarLoop]: Abstraction has 594 states and 1515 transitions. [2022-01-18 14:07:57,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:57,142 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 1515 transitions. [2022-01-18 14:07:57,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:57,143 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:57,143 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:57,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable328 [2022-01-18 14:07:57,143 INFO L402 AbstractCegarLoop]: === Iteration 330 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:57,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:57,143 INFO L85 PathProgramCache]: Analyzing trace with hash -150994965, now seen corresponding path program 328 times [2022-01-18 14:07:57,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:57,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072048714] [2022-01-18 14:07:57,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:57,144 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:57,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:57,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:57,220 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:57,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072048714] [2022-01-18 14:07:57,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072048714] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:57,220 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:57,220 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:57,220 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650756526] [2022-01-18 14:07:57,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:57,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:57,221 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:57,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:57,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:57,221 INFO L87 Difference]: Start difference. First operand 594 states and 1515 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:57,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:57,411 INFO L93 Difference]: Finished difference Result 734 states and 1848 transitions. [2022-01-18 14:07:57,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:57,411 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:57,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:57,412 INFO L225 Difference]: With dead ends: 734 [2022-01-18 14:07:57,412 INFO L226 Difference]: Without dead ends: 633 [2022-01-18 14:07:57,412 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:57,412 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 48 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:57,412 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 256 Invalid, 630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 618 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:57,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2022-01-18 14:07:57,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 570. [2022-01-18 14:07:57,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 569 states have (on average 2.5606326889279436) internal successors, (1457), 569 states have internal predecessors, (1457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:57,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 1457 transitions. [2022-01-18 14:07:57,417 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 1457 transitions. Word has length 26 [2022-01-18 14:07:57,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:57,417 INFO L470 AbstractCegarLoop]: Abstraction has 570 states and 1457 transitions. [2022-01-18 14:07:57,417 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:57,417 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 1457 transitions. [2022-01-18 14:07:57,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:57,418 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:57,418 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:57,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable329 [2022-01-18 14:07:57,418 INFO L402 AbstractCegarLoop]: === Iteration 331 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:57,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:57,418 INFO L85 PathProgramCache]: Analyzing trace with hash -2087295891, now seen corresponding path program 329 times [2022-01-18 14:07:57,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:57,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846745740] [2022-01-18 14:07:57,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:57,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:57,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:57,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:57,478 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:57,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846745740] [2022-01-18 14:07:57,478 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846745740] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:57,478 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:57,478 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:57,479 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96789] [2022-01-18 14:07:57,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:57,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:57,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:57,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:57,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:57,479 INFO L87 Difference]: Start difference. First operand 570 states and 1457 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:57,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:57,687 INFO L93 Difference]: Finished difference Result 694 states and 1767 transitions. [2022-01-18 14:07:57,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:57,688 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:57,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:57,688 INFO L225 Difference]: With dead ends: 694 [2022-01-18 14:07:57,688 INFO L226 Difference]: Without dead ends: 603 [2022-01-18 14:07:57,688 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:57,689 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 53 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:57,689 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 271 Invalid, 693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:57,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2022-01-18 14:07:57,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 587. [2022-01-18 14:07:57,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 586 states have (on average 2.5580204778157) internal successors, (1499), 586 states have internal predecessors, (1499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:57,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 1499 transitions. [2022-01-18 14:07:57,694 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 1499 transitions. Word has length 26 [2022-01-18 14:07:57,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:57,694 INFO L470 AbstractCegarLoop]: Abstraction has 587 states and 1499 transitions. [2022-01-18 14:07:57,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:57,694 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 1499 transitions. [2022-01-18 14:07:57,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:57,695 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:57,695 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:57,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable330 [2022-01-18 14:07:57,695 INFO L402 AbstractCegarLoop]: === Iteration 332 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:57,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:57,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1288490283, now seen corresponding path program 330 times [2022-01-18 14:07:57,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:57,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269218720] [2022-01-18 14:07:57,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:57,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:57,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:57,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:57,755 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:57,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269218720] [2022-01-18 14:07:57,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269218720] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:57,755 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:57,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:57,755 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255318042] [2022-01-18 14:07:57,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:57,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:57,755 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:57,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:57,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:57,755 INFO L87 Difference]: Start difference. First operand 587 states and 1499 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:57,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:57,963 INFO L93 Difference]: Finished difference Result 696 states and 1770 transitions. [2022-01-18 14:07:57,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:57,963 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:57,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:57,964 INFO L225 Difference]: With dead ends: 696 [2022-01-18 14:07:57,964 INFO L226 Difference]: Without dead ends: 600 [2022-01-18 14:07:57,964 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:57,965 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 55 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:57,965 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 268 Invalid, 703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 695 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:57,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2022-01-18 14:07:57,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 582. [2022-01-18 14:07:57,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 582 states, 581 states have (on average 2.5559380378657486) internal successors, (1485), 581 states have internal predecessors, (1485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:57,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 1485 transitions. [2022-01-18 14:07:57,970 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 1485 transitions. Word has length 26 [2022-01-18 14:07:57,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:57,970 INFO L470 AbstractCegarLoop]: Abstraction has 582 states and 1485 transitions. [2022-01-18 14:07:57,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:57,970 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 1485 transitions. [2022-01-18 14:07:57,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:57,970 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:57,970 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:57,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable331 [2022-01-18 14:07:57,970 INFO L402 AbstractCegarLoop]: === Iteration 333 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:57,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:57,971 INFO L85 PathProgramCache]: Analyzing trace with hash -2109856655, now seen corresponding path program 331 times [2022-01-18 14:07:57,971 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:57,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435874727] [2022-01-18 14:07:57,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:57,971 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:57,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:58,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:58,027 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:58,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435874727] [2022-01-18 14:07:58,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435874727] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:58,028 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:58,028 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:58,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059259502] [2022-01-18 14:07:58,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:58,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:58,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:58,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:58,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:58,028 INFO L87 Difference]: Start difference. First operand 582 states and 1485 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:58,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:58,236 INFO L93 Difference]: Finished difference Result 709 states and 1796 transitions. [2022-01-18 14:07:58,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:58,236 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:58,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:58,237 INFO L225 Difference]: With dead ends: 709 [2022-01-18 14:07:58,237 INFO L226 Difference]: Without dead ends: 586 [2022-01-18 14:07:58,237 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:58,237 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 63 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 690 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:58,237 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 296 Invalid, 698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 690 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:58,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2022-01-18 14:07:58,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 570. [2022-01-18 14:07:58,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 569 states have (on average 2.555360281195079) internal successors, (1454), 569 states have internal predecessors, (1454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:58,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 1454 transitions. [2022-01-18 14:07:58,242 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 1454 transitions. Word has length 26 [2022-01-18 14:07:58,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:58,242 INFO L470 AbstractCegarLoop]: Abstraction has 570 states and 1454 transitions. [2022-01-18 14:07:58,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:58,242 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 1454 transitions. [2022-01-18 14:07:58,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:58,243 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:58,243 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:58,243 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable332 [2022-01-18 14:07:58,243 INFO L402 AbstractCegarLoop]: === Iteration 334 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:58,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:58,243 INFO L85 PathProgramCache]: Analyzing trace with hash -359076983, now seen corresponding path program 332 times [2022-01-18 14:07:58,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:58,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465734103] [2022-01-18 14:07:58,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:58,244 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:58,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:58,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:58,302 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:58,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465734103] [2022-01-18 14:07:58,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465734103] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:58,302 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:58,302 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:58,302 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900056977] [2022-01-18 14:07:58,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:58,302 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:58,302 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:58,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:58,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:58,303 INFO L87 Difference]: Start difference. First operand 570 states and 1454 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:58,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:58,490 INFO L93 Difference]: Finished difference Result 694 states and 1757 transitions. [2022-01-18 14:07:58,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:58,490 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:58,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:58,491 INFO L225 Difference]: With dead ends: 694 [2022-01-18 14:07:58,491 INFO L226 Difference]: Without dead ends: 613 [2022-01-18 14:07:58,491 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:58,491 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 41 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:58,491 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 235 Invalid, 630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 618 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:58,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2022-01-18 14:07:58,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 569. [2022-01-18 14:07:58,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 569 states, 568 states have (on average 2.556338028169014) internal successors, (1452), 568 states have internal predecessors, (1452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:58,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 1452 transitions. [2022-01-18 14:07:58,496 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 1452 transitions. Word has length 26 [2022-01-18 14:07:58,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:58,496 INFO L470 AbstractCegarLoop]: Abstraction has 569 states and 1452 transitions. [2022-01-18 14:07:58,496 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:58,497 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 1452 transitions. [2022-01-18 14:07:58,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:58,497 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:58,497 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:58,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable333 [2022-01-18 14:07:58,497 INFO L402 AbstractCegarLoop]: === Iteration 335 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:58,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:58,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1999589387, now seen corresponding path program 333 times [2022-01-18 14:07:58,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:58,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889007811] [2022-01-18 14:07:58,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:58,498 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:58,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:58,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:58,556 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:58,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889007811] [2022-01-18 14:07:58,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889007811] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:58,556 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:58,556 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:58,556 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762060078] [2022-01-18 14:07:58,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:58,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:58,557 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:58,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:58,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:58,557 INFO L87 Difference]: Start difference. First operand 569 states and 1452 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:58,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:58,760 INFO L93 Difference]: Finished difference Result 696 states and 1757 transitions. [2022-01-18 14:07:58,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:58,760 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:58,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:58,761 INFO L225 Difference]: With dead ends: 696 [2022-01-18 14:07:58,761 INFO L226 Difference]: Without dead ends: 605 [2022-01-18 14:07:58,761 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:58,761 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 46 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:58,761 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 241 Invalid, 667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 657 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:58,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2022-01-18 14:07:58,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 576. [2022-01-18 14:07:58,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 575 states have (on average 2.554782608695652) internal successors, (1469), 575 states have internal predecessors, (1469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:58,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 1469 transitions. [2022-01-18 14:07:58,766 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 1469 transitions. Word has length 26 [2022-01-18 14:07:58,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:58,766 INFO L470 AbstractCegarLoop]: Abstraction has 576 states and 1469 transitions. [2022-01-18 14:07:58,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:58,767 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 1469 transitions. [2022-01-18 14:07:58,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:58,767 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:58,767 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:58,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable334 [2022-01-18 14:07:58,767 INFO L402 AbstractCegarLoop]: === Iteration 336 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:58,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:58,767 INFO L85 PathProgramCache]: Analyzing trace with hash 697098483, now seen corresponding path program 334 times [2022-01-18 14:07:58,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:58,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193438775] [2022-01-18 14:07:58,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:58,768 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:58,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:58,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:58,826 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:58,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193438775] [2022-01-18 14:07:58,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193438775] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:58,826 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:58,826 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:58,826 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510901856] [2022-01-18 14:07:58,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:58,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:58,826 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:58,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:58,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:58,827 INFO L87 Difference]: Start difference. First operand 576 states and 1469 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:59,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:59,027 INFO L93 Difference]: Finished difference Result 692 states and 1748 transitions. [2022-01-18 14:07:59,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:59,028 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:59,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:59,029 INFO L225 Difference]: With dead ends: 692 [2022-01-18 14:07:59,029 INFO L226 Difference]: Without dead ends: 599 [2022-01-18 14:07:59,029 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:59,029 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 46 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 653 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:59,029 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 243 Invalid, 665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 653 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:59,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2022-01-18 14:07:59,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 572. [2022-01-18 14:07:59,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 571 states have (on average 2.555166374781086) internal successors, (1459), 571 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:59,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 1459 transitions. [2022-01-18 14:07:59,034 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 1459 transitions. Word has length 26 [2022-01-18 14:07:59,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:59,034 INFO L470 AbstractCegarLoop]: Abstraction has 572 states and 1459 transitions. [2022-01-18 14:07:59,034 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:59,034 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 1459 transitions. [2022-01-18 14:07:59,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:59,035 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:59,035 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:59,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable335 [2022-01-18 14:07:59,035 INFO L402 AbstractCegarLoop]: === Iteration 337 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:59,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:59,035 INFO L85 PathProgramCache]: Analyzing trace with hash -565884949, now seen corresponding path program 335 times [2022-01-18 14:07:59,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:59,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375981302] [2022-01-18 14:07:59,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:59,035 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:59,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:59,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:59,093 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:59,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375981302] [2022-01-18 14:07:59,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375981302] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:59,093 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:59,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:59,094 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148774816] [2022-01-18 14:07:59,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:59,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:59,094 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:59,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:59,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:59,094 INFO L87 Difference]: Start difference. First operand 572 states and 1459 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:59,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:59,286 INFO L93 Difference]: Finished difference Result 712 states and 1795 transitions. [2022-01-18 14:07:59,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:59,286 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:59,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:59,287 INFO L225 Difference]: With dead ends: 712 [2022-01-18 14:07:59,287 INFO L226 Difference]: Without dead ends: 631 [2022-01-18 14:07:59,287 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:59,287 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 42 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 632 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:59,287 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 231 Invalid, 642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 632 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:59,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2022-01-18 14:07:59,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 574. [2022-01-18 14:07:59,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 573 states have (on average 2.5636998254799304) internal successors, (1469), 573 states have internal predecessors, (1469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:59,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 1469 transitions. [2022-01-18 14:07:59,292 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 1469 transitions. Word has length 26 [2022-01-18 14:07:59,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:59,293 INFO L470 AbstractCegarLoop]: Abstraction has 574 states and 1469 transitions. [2022-01-18 14:07:59,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:59,293 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 1469 transitions. [2022-01-18 14:07:59,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:59,293 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:59,293 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:59,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable336 [2022-01-18 14:07:59,293 INFO L402 AbstractCegarLoop]: === Iteration 338 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:59,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:59,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1792781421, now seen corresponding path program 336 times [2022-01-18 14:07:59,294 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:59,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856964978] [2022-01-18 14:07:59,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:59,294 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:59,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:59,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:59,352 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:59,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856964978] [2022-01-18 14:07:59,352 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856964978] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:59,352 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:59,353 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:59,353 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522084701] [2022-01-18 14:07:59,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:59,353 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:59,353 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:59,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:59,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:59,353 INFO L87 Difference]: Start difference. First operand 574 states and 1469 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:59,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:59,555 INFO L93 Difference]: Finished difference Result 690 states and 1756 transitions. [2022-01-18 14:07:59,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:59,555 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:59,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:59,556 INFO L225 Difference]: With dead ends: 690 [2022-01-18 14:07:59,556 INFO L226 Difference]: Without dead ends: 599 [2022-01-18 14:07:59,556 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:59,556 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 47 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 671 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:59,556 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 237 Invalid, 679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 671 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:59,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2022-01-18 14:07:59,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 577. [2022-01-18 14:07:59,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 576 states have (on average 2.560763888888889) internal successors, (1475), 576 states have internal predecessors, (1475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:59,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 1475 transitions. [2022-01-18 14:07:59,561 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 1475 transitions. Word has length 26 [2022-01-18 14:07:59,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:59,561 INFO L470 AbstractCegarLoop]: Abstraction has 577 states and 1475 transitions. [2022-01-18 14:07:59,561 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:59,561 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 1475 transitions. [2022-01-18 14:07:59,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:59,562 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:59,562 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:59,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable337 [2022-01-18 14:07:59,562 INFO L402 AbstractCegarLoop]: === Iteration 339 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:59,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:59,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1135617899, now seen corresponding path program 337 times [2022-01-18 14:07:59,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:59,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379935202] [2022-01-18 14:07:59,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:59,562 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:59,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:59,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:59,633 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:59,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379935202] [2022-01-18 14:07:59,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379935202] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:59,634 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:59,634 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:59,634 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084607280] [2022-01-18 14:07:59,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:59,634 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:59,634 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:59,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:59,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:59,634 INFO L87 Difference]: Start difference. First operand 577 states and 1475 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:59,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:07:59,818 INFO L93 Difference]: Finished difference Result 686 states and 1730 transitions. [2022-01-18 14:07:59,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:07:59,818 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:07:59,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:07:59,819 INFO L225 Difference]: With dead ends: 686 [2022-01-18 14:07:59,819 INFO L226 Difference]: Without dead ends: 597 [2022-01-18 14:07:59,819 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:59,819 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 42 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 604 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:07:59,819 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 222 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 604 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:07:59,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2022-01-18 14:07:59,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 575. [2022-01-18 14:07:59,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 575 states, 574 states have (on average 2.5557491289198606) internal successors, (1467), 574 states have internal predecessors, (1467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:59,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 1467 transitions. [2022-01-18 14:07:59,824 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 1467 transitions. Word has length 26 [2022-01-18 14:07:59,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:07:59,824 INFO L470 AbstractCegarLoop]: Abstraction has 575 states and 1467 transitions. [2022-01-18 14:07:59,824 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:07:59,824 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 1467 transitions. [2022-01-18 14:07:59,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:07:59,825 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:07:59,825 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:07:59,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable338 [2022-01-18 14:07:59,825 INFO L402 AbstractCegarLoop]: === Iteration 340 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:07:59,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:07:59,825 INFO L85 PathProgramCache]: Analyzing trace with hash -192948023, now seen corresponding path program 338 times [2022-01-18 14:07:59,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:07:59,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455302309] [2022-01-18 14:07:59,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:07:59,825 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:07:59,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:07:59,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:07:59,884 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:07:59,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455302309] [2022-01-18 14:07:59,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455302309] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:07:59,884 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:07:59,884 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:07:59,884 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981376949] [2022-01-18 14:07:59,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:07:59,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:07:59,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:07:59,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:07:59,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:07:59,885 INFO L87 Difference]: Start difference. First operand 575 states and 1467 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:00,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:00,091 INFO L93 Difference]: Finished difference Result 678 states and 1726 transitions. [2022-01-18 14:08:00,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:00,091 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:00,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:00,092 INFO L225 Difference]: With dead ends: 678 [2022-01-18 14:08:00,092 INFO L226 Difference]: Without dead ends: 582 [2022-01-18 14:08:00,092 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:00,092 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 49 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 681 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:00,092 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 234 Invalid, 689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 681 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:00,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2022-01-18 14:08:00,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 570. [2022-01-18 14:08:00,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 569 states have (on average 2.5571177504393674) internal successors, (1455), 569 states have internal predecessors, (1455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:00,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 1455 transitions. [2022-01-18 14:08:00,097 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 1455 transitions. Word has length 26 [2022-01-18 14:08:00,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:00,097 INFO L470 AbstractCegarLoop]: Abstraction has 570 states and 1455 transitions. [2022-01-18 14:08:00,097 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:00,097 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 1455 transitions. [2022-01-18 14:08:00,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:00,098 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:00,098 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:00,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable339 [2022-01-18 14:08:00,098 INFO L402 AbstractCegarLoop]: === Iteration 341 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:00,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:00,098 INFO L85 PathProgramCache]: Analyzing trace with hash -366224555, now seen corresponding path program 339 times [2022-01-18 14:08:00,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:00,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621670645] [2022-01-18 14:08:00,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:00,098 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:00,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:00,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:00,158 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:00,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621670645] [2022-01-18 14:08:00,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621670645] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:00,158 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:00,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:00,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404006079] [2022-01-18 14:08:00,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:00,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:00,158 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:00,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:00,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:00,158 INFO L87 Difference]: Start difference. First operand 570 states and 1455 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:00,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:00,362 INFO L93 Difference]: Finished difference Result 701 states and 1771 transitions. [2022-01-18 14:08:00,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:00,363 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:00,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:00,363 INFO L225 Difference]: With dead ends: 701 [2022-01-18 14:08:00,363 INFO L226 Difference]: Without dead ends: 610 [2022-01-18 14:08:00,363 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:00,363 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 47 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:00,363 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 241 Invalid, 675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 665 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:00,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2022-01-18 14:08:00,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 585. [2022-01-18 14:08:00,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 584 states have (on average 2.547945205479452) internal successors, (1488), 584 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:00,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 1488 transitions. [2022-01-18 14:08:00,368 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 1488 transitions. Word has length 26 [2022-01-18 14:08:00,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:00,369 INFO L470 AbstractCegarLoop]: Abstraction has 585 states and 1488 transitions. [2022-01-18 14:08:00,369 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:00,369 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 1488 transitions. [2022-01-18 14:08:00,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:00,369 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:00,369 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:00,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable340 [2022-01-18 14:08:00,369 INFO L402 AbstractCegarLoop]: === Iteration 342 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:00,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:00,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1758369101, now seen corresponding path program 340 times [2022-01-18 14:08:00,370 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:00,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225215305] [2022-01-18 14:08:00,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:00,370 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:00,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:00,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:00,438 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:00,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225215305] [2022-01-18 14:08:00,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225215305] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:00,438 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:00,438 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:00,438 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239256935] [2022-01-18 14:08:00,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:00,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:00,438 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:00,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:00,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:00,438 INFO L87 Difference]: Start difference. First operand 585 states and 1488 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:00,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:00,644 INFO L93 Difference]: Finished difference Result 693 states and 1757 transitions. [2022-01-18 14:08:00,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:00,644 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:00,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:00,645 INFO L225 Difference]: With dead ends: 693 [2022-01-18 14:08:00,645 INFO L226 Difference]: Without dead ends: 596 [2022-01-18 14:08:00,645 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:00,645 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 49 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 679 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:00,645 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 236 Invalid, 687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 679 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:00,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2022-01-18 14:08:00,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 583. [2022-01-18 14:08:00,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 583 states, 582 states have (on average 2.5481099656357387) internal successors, (1483), 582 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:00,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 1483 transitions. [2022-01-18 14:08:00,650 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 1483 transitions. Word has length 26 [2022-01-18 14:08:00,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:00,651 INFO L470 AbstractCegarLoop]: Abstraction has 583 states and 1483 transitions. [2022-01-18 14:08:00,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:00,651 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 1483 transitions. [2022-01-18 14:08:00,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:00,651 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:00,651 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:00,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable341 [2022-01-18 14:08:00,651 INFO L402 AbstractCegarLoop]: === Iteration 343 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:00,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:00,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1627750985, now seen corresponding path program 341 times [2022-01-18 14:08:00,652 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:00,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053982917] [2022-01-18 14:08:00,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:00,652 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:00,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:00,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:00,712 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:00,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053982917] [2022-01-18 14:08:00,712 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053982917] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:00,712 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:00,712 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:00,713 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056805885] [2022-01-18 14:08:00,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:00,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:00,713 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:00,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:00,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:00,713 INFO L87 Difference]: Start difference. First operand 583 states and 1483 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:00,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:00,923 INFO L93 Difference]: Finished difference Result 728 states and 1837 transitions. [2022-01-18 14:08:00,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:00,923 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:00,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:00,924 INFO L225 Difference]: With dead ends: 728 [2022-01-18 14:08:00,924 INFO L226 Difference]: Without dead ends: 613 [2022-01-18 14:08:00,924 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:00,924 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 63 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:00,924 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 298 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 686 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:00,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2022-01-18 14:08:00,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 583. [2022-01-18 14:08:00,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 583 states, 582 states have (on average 2.5343642611683848) internal successors, (1475), 582 states have internal predecessors, (1475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:00,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 1475 transitions. [2022-01-18 14:08:00,929 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 1475 transitions. Word has length 26 [2022-01-18 14:08:00,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:00,929 INFO L470 AbstractCegarLoop]: Abstraction has 583 states and 1475 transitions. [2022-01-18 14:08:00,929 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:00,929 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 1475 transitions. [2022-01-18 14:08:00,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:00,930 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:00,930 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:00,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable342 [2022-01-18 14:08:00,930 INFO L402 AbstractCegarLoop]: === Iteration 344 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:00,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:00,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1427002645, now seen corresponding path program 342 times [2022-01-18 14:08:00,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:00,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50144808] [2022-01-18 14:08:00,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:00,930 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:00,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:00,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:00,989 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:00,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50144808] [2022-01-18 14:08:00,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50144808] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:00,989 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:00,989 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:00,989 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735597553] [2022-01-18 14:08:00,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:00,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:00,989 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:00,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:00,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:00,990 INFO L87 Difference]: Start difference. First operand 583 states and 1475 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:01,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:01,195 INFO L93 Difference]: Finished difference Result 717 states and 1804 transitions. [2022-01-18 14:08:01,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:01,195 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:01,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:01,196 INFO L225 Difference]: With dead ends: 717 [2022-01-18 14:08:01,196 INFO L226 Difference]: Without dead ends: 626 [2022-01-18 14:08:01,196 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:01,196 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 53 mSDsluCounter, 475 mSDsCounter, 0 mSdLazyCounter, 666 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:01,196 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 277 Invalid, 678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 666 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:01,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2022-01-18 14:08:01,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 583. [2022-01-18 14:08:01,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 583 states, 582 states have (on average 2.5343642611683848) internal successors, (1475), 582 states have internal predecessors, (1475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:01,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 1475 transitions. [2022-01-18 14:08:01,202 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 1475 transitions. Word has length 26 [2022-01-18 14:08:01,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:01,202 INFO L470 AbstractCegarLoop]: Abstraction has 583 states and 1475 transitions. [2022-01-18 14:08:01,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:01,202 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 1475 transitions. [2022-01-18 14:08:01,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:01,202 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:01,202 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:01,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable343 [2022-01-18 14:08:01,202 INFO L402 AbstractCegarLoop]: === Iteration 345 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:01,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:01,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1475820105, now seen corresponding path program 343 times [2022-01-18 14:08:01,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:01,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213658779] [2022-01-18 14:08:01,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:01,207 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:01,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:01,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:01,272 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:01,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213658779] [2022-01-18 14:08:01,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213658779] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:01,273 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:01,273 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:01,273 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569290043] [2022-01-18 14:08:01,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:01,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:01,273 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:01,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:01,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:01,273 INFO L87 Difference]: Start difference. First operand 583 states and 1475 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:01,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:01,484 INFO L93 Difference]: Finished difference Result 697 states and 1755 transitions. [2022-01-18 14:08:01,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:01,485 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:01,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:01,485 INFO L225 Difference]: With dead ends: 697 [2022-01-18 14:08:01,485 INFO L226 Difference]: Without dead ends: 590 [2022-01-18 14:08:01,485 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:01,485 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 55 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 680 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:01,486 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 272 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 680 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:01,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2022-01-18 14:08:01,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 566. [2022-01-18 14:08:01,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 565 states have (on average 2.5256637168141594) internal successors, (1427), 565 states have internal predecessors, (1427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:01,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 1427 transitions. [2022-01-18 14:08:01,490 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 1427 transitions. Word has length 26 [2022-01-18 14:08:01,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:01,491 INFO L470 AbstractCegarLoop]: Abstraction has 566 states and 1427 transitions. [2022-01-18 14:08:01,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:01,491 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 1427 transitions. [2022-01-18 14:08:01,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:01,491 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:01,491 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:01,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable344 [2022-01-18 14:08:01,491 INFO L402 AbstractCegarLoop]: === Iteration 346 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:01,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:01,492 INFO L85 PathProgramCache]: Analyzing trace with hash -611678313, now seen corresponding path program 344 times [2022-01-18 14:08:01,492 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:01,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347635969] [2022-01-18 14:08:01,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:01,492 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:01,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:01,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:01,549 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:01,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347635969] [2022-01-18 14:08:01,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347635969] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:01,549 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:01,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:01,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680175399] [2022-01-18 14:08:01,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:01,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:01,549 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:01,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:01,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:01,550 INFO L87 Difference]: Start difference. First operand 566 states and 1427 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:01,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:01,751 INFO L93 Difference]: Finished difference Result 710 states and 1782 transitions. [2022-01-18 14:08:01,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:01,752 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:01,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:01,752 INFO L225 Difference]: With dead ends: 710 [2022-01-18 14:08:01,752 INFO L226 Difference]: Without dead ends: 593 [2022-01-18 14:08:01,752 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:01,753 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 59 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:01,753 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 297 Invalid, 677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 665 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:01,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2022-01-18 14:08:01,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 593. [2022-01-18 14:08:01,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 593 states, 592 states have (on average 2.501689189189189) internal successors, (1481), 592 states have internal predecessors, (1481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:01,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 1481 transitions. [2022-01-18 14:08:01,758 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 1481 transitions. Word has length 26 [2022-01-18 14:08:01,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:01,758 INFO L470 AbstractCegarLoop]: Abstraction has 593 states and 1481 transitions. [2022-01-18 14:08:01,758 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:01,758 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 1481 transitions. [2022-01-18 14:08:01,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:01,758 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:01,758 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:01,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable345 [2022-01-18 14:08:01,759 INFO L402 AbstractCegarLoop]: === Iteration 347 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:01,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:01,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1530859435, now seen corresponding path program 345 times [2022-01-18 14:08:01,759 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:01,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007374198] [2022-01-18 14:08:01,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:01,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:01,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:01,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:01,817 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:01,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007374198] [2022-01-18 14:08:01,817 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007374198] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:01,817 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:01,817 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:01,817 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987500333] [2022-01-18 14:08:01,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:01,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:01,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:01,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:01,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:01,818 INFO L87 Difference]: Start difference. First operand 593 states and 1481 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:02,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:02,025 INFO L93 Difference]: Finished difference Result 725 states and 1802 transitions. [2022-01-18 14:08:02,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:02,025 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:02,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:02,026 INFO L225 Difference]: With dead ends: 725 [2022-01-18 14:08:02,026 INFO L226 Difference]: Without dead ends: 603 [2022-01-18 14:08:02,026 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:02,026 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 61 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 679 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:02,026 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 292 Invalid, 689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 679 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:02,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2022-01-18 14:08:02,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 593. [2022-01-18 14:08:02,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 593 states, 592 states have (on average 2.4966216216216215) internal successors, (1478), 592 states have internal predecessors, (1478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:02,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 1478 transitions. [2022-01-18 14:08:02,031 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 1478 transitions. Word has length 26 [2022-01-18 14:08:02,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:02,031 INFO L470 AbstractCegarLoop]: Abstraction has 593 states and 1478 transitions. [2022-01-18 14:08:02,031 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:02,031 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 1478 transitions. [2022-01-18 14:08:02,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:02,032 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:02,032 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:02,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable346 [2022-01-18 14:08:02,032 INFO L402 AbstractCegarLoop]: === Iteration 348 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:02,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:02,032 INFO L85 PathProgramCache]: Analyzing trace with hash -634239077, now seen corresponding path program 346 times [2022-01-18 14:08:02,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:02,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021103034] [2022-01-18 14:08:02,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:02,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:02,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:02,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:02,089 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:02,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021103034] [2022-01-18 14:08:02,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021103034] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:02,089 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:02,089 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:02,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582507990] [2022-01-18 14:08:02,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:02,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:02,090 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:02,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:02,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:02,090 INFO L87 Difference]: Start difference. First operand 593 states and 1478 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:02,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:02,297 INFO L93 Difference]: Finished difference Result 740 states and 1834 transitions. [2022-01-18 14:08:02,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:02,297 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:02,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:02,298 INFO L225 Difference]: With dead ends: 740 [2022-01-18 14:08:02,298 INFO L226 Difference]: Without dead ends: 591 [2022-01-18 14:08:02,298 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:02,298 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 69 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 674 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:02,298 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 311 Invalid, 684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 674 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:02,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2022-01-18 14:08:02,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 581. [2022-01-18 14:08:02,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 580 states have (on average 2.486206896551724) internal successors, (1442), 580 states have internal predecessors, (1442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:02,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 1442 transitions. [2022-01-18 14:08:02,303 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 1442 transitions. Word has length 26 [2022-01-18 14:08:02,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:02,303 INFO L470 AbstractCegarLoop]: Abstraction has 581 states and 1442 transitions. [2022-01-18 14:08:02,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:02,303 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 1442 transitions. [2022-01-18 14:08:02,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:02,304 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:02,304 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:02,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable347 [2022-01-18 14:08:02,304 INFO L402 AbstractCegarLoop]: === Iteration 349 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:02,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:02,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1888711655, now seen corresponding path program 347 times [2022-01-18 14:08:02,304 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:02,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164605649] [2022-01-18 14:08:02,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:02,304 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:02,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:02,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:02,362 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:02,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164605649] [2022-01-18 14:08:02,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164605649] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:02,363 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:02,363 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:02,363 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897802638] [2022-01-18 14:08:02,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:02,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:02,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:02,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:02,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:02,363 INFO L87 Difference]: Start difference. First operand 581 states and 1442 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:02,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:02,568 INFO L93 Difference]: Finished difference Result 702 states and 1738 transitions. [2022-01-18 14:08:02,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:02,569 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:02,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:02,569 INFO L225 Difference]: With dead ends: 702 [2022-01-18 14:08:02,569 INFO L226 Difference]: Without dead ends: 558 [2022-01-18 14:08:02,569 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:02,569 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 60 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:02,570 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 296 Invalid, 679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 668 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:02,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2022-01-18 14:08:02,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 542. [2022-01-18 14:08:02,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 542 states, 541 states have (on average 2.4935304990757854) internal successors, (1349), 541 states have internal predecessors, (1349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:02,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 1349 transitions. [2022-01-18 14:08:02,575 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 1349 transitions. Word has length 26 [2022-01-18 14:08:02,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:02,575 INFO L470 AbstractCegarLoop]: Abstraction has 542 states and 1349 transitions. [2022-01-18 14:08:02,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:02,575 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 1349 transitions. [2022-01-18 14:08:02,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:02,576 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:02,576 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:02,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable348 [2022-01-18 14:08:02,576 INFO L402 AbstractCegarLoop]: === Iteration 350 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:02,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:02,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1640870661, now seen corresponding path program 348 times [2022-01-18 14:08:02,576 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:02,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043743492] [2022-01-18 14:08:02,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:02,576 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:02,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:02,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:02,643 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:02,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043743492] [2022-01-18 14:08:02,643 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043743492] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:02,643 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:02,643 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:02,643 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661933507] [2022-01-18 14:08:02,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:02,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:02,643 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:02,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:02,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:02,644 INFO L87 Difference]: Start difference. First operand 542 states and 1349 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:02,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:02,838 INFO L93 Difference]: Finished difference Result 644 states and 1595 transitions. [2022-01-18 14:08:02,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:02,839 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:02,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:02,839 INFO L225 Difference]: With dead ends: 644 [2022-01-18 14:08:02,839 INFO L226 Difference]: Without dead ends: 561 [2022-01-18 14:08:02,839 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:02,840 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 41 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 635 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:02,840 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 242 Invalid, 647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 635 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:02,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2022-01-18 14:08:02,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 530. [2022-01-18 14:08:02,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 529 states have (on average 2.4688090737240076) internal successors, (1306), 529 states have internal predecessors, (1306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:02,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 1306 transitions. [2022-01-18 14:08:02,844 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 1306 transitions. Word has length 26 [2022-01-18 14:08:02,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:02,844 INFO L470 AbstractCegarLoop]: Abstraction has 530 states and 1306 transitions. [2022-01-18 14:08:02,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:02,844 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 1306 transitions. [2022-01-18 14:08:02,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:02,845 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:02,845 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:02,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable349 [2022-01-18 14:08:02,845 INFO L402 AbstractCegarLoop]: === Iteration 351 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:02,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:02,845 INFO L85 PathProgramCache]: Analyzing trace with hash 717795709, now seen corresponding path program 349 times [2022-01-18 14:08:02,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:02,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671727885] [2022-01-18 14:08:02,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:02,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:02,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:02,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:02,905 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:02,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671727885] [2022-01-18 14:08:02,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671727885] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:02,905 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:02,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:02,905 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668753824] [2022-01-18 14:08:02,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:02,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:02,905 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:02,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:02,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:02,906 INFO L87 Difference]: Start difference. First operand 530 states and 1306 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:03,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:03,110 INFO L93 Difference]: Finished difference Result 663 states and 1624 transitions. [2022-01-18 14:08:03,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:03,110 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:03,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:03,111 INFO L225 Difference]: With dead ends: 663 [2022-01-18 14:08:03,111 INFO L226 Difference]: Without dead ends: 572 [2022-01-18 14:08:03,111 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:03,111 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 46 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 656 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:03,111 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 242 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 656 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:03,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2022-01-18 14:08:03,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 536. [2022-01-18 14:08:03,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 535 states have (on average 2.457943925233645) internal successors, (1315), 535 states have internal predecessors, (1315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:03,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 1315 transitions. [2022-01-18 14:08:03,116 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 1315 transitions. Word has length 26 [2022-01-18 14:08:03,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:03,116 INFO L470 AbstractCegarLoop]: Abstraction has 536 states and 1315 transitions. [2022-01-18 14:08:03,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:03,116 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 1315 transitions. [2022-01-18 14:08:03,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:03,117 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:03,117 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:03,117 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable350 [2022-01-18 14:08:03,117 INFO L402 AbstractCegarLoop]: === Iteration 352 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:03,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:03,117 INFO L85 PathProgramCache]: Analyzing trace with hash 60632187, now seen corresponding path program 350 times [2022-01-18 14:08:03,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:03,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602758508] [2022-01-18 14:08:03,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:03,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:03,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:03,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:03,175 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:03,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602758508] [2022-01-18 14:08:03,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602758508] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:03,175 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:03,175 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:03,175 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176803617] [2022-01-18 14:08:03,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:03,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:03,175 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:03,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:03,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:03,176 INFO L87 Difference]: Start difference. First operand 536 states and 1315 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:03,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:03,364 INFO L93 Difference]: Finished difference Result 635 states and 1558 transitions. [2022-01-18 14:08:03,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:03,364 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:03,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:03,365 INFO L225 Difference]: With dead ends: 635 [2022-01-18 14:08:03,365 INFO L226 Difference]: Without dead ends: 550 [2022-01-18 14:08:03,365 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:03,365 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 41 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 624 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:03,365 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 239 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 624 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:03,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2022-01-18 14:08:03,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 539. [2022-01-18 14:08:03,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 538 states have (on average 2.453531598513011) internal successors, (1320), 538 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:03,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 1320 transitions. [2022-01-18 14:08:03,370 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 1320 transitions. Word has length 26 [2022-01-18 14:08:03,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:03,370 INFO L470 AbstractCegarLoop]: Abstraction has 539 states and 1320 transitions. [2022-01-18 14:08:03,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:03,370 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 1320 transitions. [2022-01-18 14:08:03,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:03,370 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:03,370 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:03,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable351 [2022-01-18 14:08:03,371 INFO L402 AbstractCegarLoop]: === Iteration 353 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:03,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:03,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1267933735, now seen corresponding path program 351 times [2022-01-18 14:08:03,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:03,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232370037] [2022-01-18 14:08:03,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:03,371 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:03,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:03,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:03,430 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:03,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232370037] [2022-01-18 14:08:03,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232370037] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:03,430 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:03,430 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:03,430 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346722356] [2022-01-18 14:08:03,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:03,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:03,430 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:03,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:03,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:03,431 INFO L87 Difference]: Start difference. First operand 539 states and 1320 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:03,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:03,634 INFO L93 Difference]: Finished difference Result 642 states and 1579 transitions. [2022-01-18 14:08:03,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:03,634 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:03,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:03,634 INFO L225 Difference]: With dead ends: 642 [2022-01-18 14:08:03,635 INFO L226 Difference]: Without dead ends: 546 [2022-01-18 14:08:03,635 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:03,635 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 48 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:03,635 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 237 Invalid, 669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 661 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:03,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2022-01-18 14:08:03,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 536. [2022-01-18 14:08:03,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 535 states have (on average 2.4560747663551403) internal successors, (1314), 535 states have internal predecessors, (1314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:03,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 1314 transitions. [2022-01-18 14:08:03,639 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 1314 transitions. Word has length 26 [2022-01-18 14:08:03,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:03,639 INFO L470 AbstractCegarLoop]: Abstraction has 536 states and 1314 transitions. [2022-01-18 14:08:03,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:03,639 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 1314 transitions. [2022-01-18 14:08:03,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:03,640 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:03,640 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:03,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable352 [2022-01-18 14:08:03,640 INFO L402 AbstractCegarLoop]: === Iteration 354 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:03,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:03,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1412249659, now seen corresponding path program 352 times [2022-01-18 14:08:03,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:03,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081963520] [2022-01-18 14:08:03,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:03,641 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:03,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:03,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:03,700 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:03,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081963520] [2022-01-18 14:08:03,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081963520] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:03,700 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:03,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:03,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220097134] [2022-01-18 14:08:03,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:03,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:03,700 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:03,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:03,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:03,700 INFO L87 Difference]: Start difference. First operand 536 states and 1314 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:03,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:03,885 INFO L93 Difference]: Finished difference Result 646 states and 1576 transitions. [2022-01-18 14:08:03,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:03,885 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:03,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:03,885 INFO L225 Difference]: With dead ends: 646 [2022-01-18 14:08:03,885 INFO L226 Difference]: Without dead ends: 559 [2022-01-18 14:08:03,886 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:03,886 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 41 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:03,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 225 Invalid, 607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 596 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:03,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2022-01-18 14:08:03,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 530. [2022-01-18 14:08:03,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 529 states have (on average 2.448015122873346) internal successors, (1295), 529 states have internal predecessors, (1295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:03,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 1295 transitions. [2022-01-18 14:08:03,890 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 1295 transitions. Word has length 26 [2022-01-18 14:08:03,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:03,890 INFO L470 AbstractCegarLoop]: Abstraction has 530 states and 1295 transitions. [2022-01-18 14:08:03,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:03,890 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 1295 transitions. [2022-01-18 14:08:03,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:03,891 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:03,891 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:03,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable353 [2022-01-18 14:08:03,891 INFO L402 AbstractCegarLoop]: === Iteration 355 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:03,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:03,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1441210267, now seen corresponding path program 353 times [2022-01-18 14:08:03,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:03,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241708183] [2022-01-18 14:08:03,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:03,891 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:03,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:03,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:03,966 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:03,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241708183] [2022-01-18 14:08:03,966 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241708183] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:03,966 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:03,966 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:03,966 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647255053] [2022-01-18 14:08:03,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:03,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:03,966 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:03,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:03,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:03,967 INFO L87 Difference]: Start difference. First operand 530 states and 1295 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:04,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:04,171 INFO L93 Difference]: Finished difference Result 658 states and 1602 transitions. [2022-01-18 14:08:04,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:04,171 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:04,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:04,172 INFO L225 Difference]: With dead ends: 658 [2022-01-18 14:08:04,172 INFO L226 Difference]: Without dead ends: 567 [2022-01-18 14:08:04,172 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:04,172 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 46 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:04,172 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 246 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:04,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2022-01-18 14:08:04,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 530. [2022-01-18 14:08:04,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 529 states have (on average 2.448015122873346) internal successors, (1295), 529 states have internal predecessors, (1295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:04,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 1295 transitions. [2022-01-18 14:08:04,177 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 1295 transitions. Word has length 26 [2022-01-18 14:08:04,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:04,177 INFO L470 AbstractCegarLoop]: Abstraction has 530 states and 1295 transitions. [2022-01-18 14:08:04,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:04,177 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 1295 transitions. [2022-01-18 14:08:04,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:04,178 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:04,178 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:04,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable354 [2022-01-18 14:08:04,178 INFO L402 AbstractCegarLoop]: === Iteration 356 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:04,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:04,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1461612483, now seen corresponding path program 354 times [2022-01-18 14:08:04,178 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:04,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701002494] [2022-01-18 14:08:04,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:04,178 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:04,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:04,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:04,238 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:04,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701002494] [2022-01-18 14:08:04,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701002494] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:04,238 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:04,238 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:04,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745964811] [2022-01-18 14:08:04,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:04,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:04,238 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:04,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:04,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:04,238 INFO L87 Difference]: Start difference. First operand 530 states and 1295 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:04,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:04,438 INFO L93 Difference]: Finished difference Result 638 states and 1564 transitions. [2022-01-18 14:08:04,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:04,439 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:04,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:04,439 INFO L225 Difference]: With dead ends: 638 [2022-01-18 14:08:04,439 INFO L226 Difference]: Without dead ends: 541 [2022-01-18 14:08:04,439 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:04,440 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 48 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:04,440 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 239 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 651 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:04,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2022-01-18 14:08:04,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 528. [2022-01-18 14:08:04,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 527 states have (on average 2.447817836812144) internal successors, (1290), 527 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:04,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 1290 transitions. [2022-01-18 14:08:04,444 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 1290 transitions. Word has length 26 [2022-01-18 14:08:04,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:04,444 INFO L470 AbstractCegarLoop]: Abstraction has 528 states and 1290 transitions. [2022-01-18 14:08:04,444 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:04,444 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 1290 transitions. [2022-01-18 14:08:04,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:04,445 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:04,445 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:04,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable355 [2022-01-18 14:08:04,445 INFO L402 AbstractCegarLoop]: === Iteration 357 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:04,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:04,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1000145903, now seen corresponding path program 355 times [2022-01-18 14:08:04,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:04,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355907765] [2022-01-18 14:08:04,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:04,446 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:04,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:04,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:04,503 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:04,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355907765] [2022-01-18 14:08:04,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355907765] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:04,503 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:04,503 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:04,503 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033454784] [2022-01-18 14:08:04,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:04,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:04,503 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:04,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:04,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:04,504 INFO L87 Difference]: Start difference. First operand 528 states and 1290 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:04,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:04,694 INFO L93 Difference]: Finished difference Result 621 states and 1513 transitions. [2022-01-18 14:08:04,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:04,694 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:04,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:04,695 INFO L225 Difference]: With dead ends: 621 [2022-01-18 14:08:04,695 INFO L226 Difference]: Without dead ends: 536 [2022-01-18 14:08:04,695 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:04,695 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 47 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:04,695 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 275 Invalid, 636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:04,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2022-01-18 14:08:04,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 516. [2022-01-18 14:08:04,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 515 states have (on average 2.4466019417475726) internal successors, (1260), 515 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:04,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 1260 transitions. [2022-01-18 14:08:04,700 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 1260 transitions. Word has length 26 [2022-01-18 14:08:04,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:04,700 INFO L470 AbstractCegarLoop]: Abstraction has 516 states and 1260 transitions. [2022-01-18 14:08:04,700 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:04,700 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 1260 transitions. [2022-01-18 14:08:04,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:04,700 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:04,700 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:04,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable356 [2022-01-18 14:08:04,701 INFO L402 AbstractCegarLoop]: === Iteration 358 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:04,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:04,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1966255471, now seen corresponding path program 356 times [2022-01-18 14:08:04,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:04,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919871520] [2022-01-18 14:08:04,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:04,701 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:04,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:04,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:04,760 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:04,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919871520] [2022-01-18 14:08:04,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919871520] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:04,760 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:04,760 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:04,760 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368870342] [2022-01-18 14:08:04,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:04,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:04,760 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:04,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:04,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:04,760 INFO L87 Difference]: Start difference. First operand 516 states and 1260 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:04,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:04,967 INFO L93 Difference]: Finished difference Result 643 states and 1566 transitions. [2022-01-18 14:08:04,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:04,967 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:04,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:04,968 INFO L225 Difference]: With dead ends: 643 [2022-01-18 14:08:04,968 INFO L226 Difference]: Without dead ends: 541 [2022-01-18 14:08:04,968 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:04,968 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 54 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 672 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:04,968 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 273 Invalid, 681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 672 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:04,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2022-01-18 14:08:04,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 501. [2022-01-18 14:08:04,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 500 states have (on average 2.462) internal successors, (1231), 500 states have internal predecessors, (1231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:04,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 1231 transitions. [2022-01-18 14:08:04,973 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 1231 transitions. Word has length 26 [2022-01-18 14:08:04,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:04,973 INFO L470 AbstractCegarLoop]: Abstraction has 501 states and 1231 transitions. [2022-01-18 14:08:04,973 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:04,973 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 1231 transitions. [2022-01-18 14:08:04,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:04,973 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:04,973 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:04,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable357 [2022-01-18 14:08:04,973 INFO L402 AbstractCegarLoop]: === Iteration 359 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:04,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:04,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1296410551, now seen corresponding path program 357 times [2022-01-18 14:08:04,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:04,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983069435] [2022-01-18 14:08:04,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:04,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:04,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:05,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:05,039 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:05,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983069435] [2022-01-18 14:08:05,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983069435] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:05,039 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:05,039 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:05,039 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051352136] [2022-01-18 14:08:05,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:05,039 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:05,039 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:05,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:05,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:05,040 INFO L87 Difference]: Start difference. First operand 501 states and 1231 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:05,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:05,244 INFO L93 Difference]: Finished difference Result 600 states and 1466 transitions. [2022-01-18 14:08:05,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:05,244 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:05,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:05,245 INFO L225 Difference]: With dead ends: 600 [2022-01-18 14:08:05,245 INFO L226 Difference]: Without dead ends: 459 [2022-01-18 14:08:05,245 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:05,245 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 53 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:05,245 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 277 Invalid, 670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:05,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2022-01-18 14:08:05,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 419. [2022-01-18 14:08:05,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 418 states have (on average 2.4665071770334928) internal successors, (1031), 418 states have internal predecessors, (1031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:05,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 1031 transitions. [2022-01-18 14:08:05,249 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 1031 transitions. Word has length 26 [2022-01-18 14:08:05,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:05,249 INFO L470 AbstractCegarLoop]: Abstraction has 419 states and 1031 transitions. [2022-01-18 14:08:05,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:05,249 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 1031 transitions. [2022-01-18 14:08:05,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:05,249 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:05,249 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:05,249 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable358 [2022-01-18 14:08:05,249 INFO L402 AbstractCegarLoop]: === Iteration 360 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:05,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:05,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1053952619, now seen corresponding path program 358 times [2022-01-18 14:08:05,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:05,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958161696] [2022-01-18 14:08:05,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:05,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:05,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:05,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:05,308 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:05,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958161696] [2022-01-18 14:08:05,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958161696] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:05,308 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:05,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:05,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785158135] [2022-01-18 14:08:05,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:05,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:05,308 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:05,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:05,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:05,309 INFO L87 Difference]: Start difference. First operand 419 states and 1031 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:05,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:05,513 INFO L93 Difference]: Finished difference Result 544 states and 1325 transitions. [2022-01-18 14:08:05,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:05,513 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:05,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:05,514 INFO L225 Difference]: With dead ends: 544 [2022-01-18 14:08:05,514 INFO L226 Difference]: Without dead ends: 423 [2022-01-18 14:08:05,514 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:05,514 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 58 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 675 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:05,514 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 305 Invalid, 685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 675 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:05,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2022-01-18 14:08:05,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 419. [2022-01-18 14:08:05,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 418 states have (on average 2.4425837320574164) internal successors, (1021), 418 states have internal predecessors, (1021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:05,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 1021 transitions. [2022-01-18 14:08:05,518 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 1021 transitions. Word has length 26 [2022-01-18 14:08:05,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:05,518 INFO L470 AbstractCegarLoop]: Abstraction has 419 states and 1021 transitions. [2022-01-18 14:08:05,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:05,518 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 1021 transitions. [2022-01-18 14:08:05,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:05,518 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:05,518 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:05,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable359 [2022-01-18 14:08:05,518 INFO L402 AbstractCegarLoop]: === Iteration 361 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:05,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:05,519 INFO L85 PathProgramCache]: Analyzing trace with hash 342627403, now seen corresponding path program 359 times [2022-01-18 14:08:05,519 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:05,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629510065] [2022-01-18 14:08:05,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:05,519 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:05,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:05,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:05,581 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:05,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629510065] [2022-01-18 14:08:05,581 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629510065] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:05,581 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:05,581 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:05,581 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734775489] [2022-01-18 14:08:05,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:05,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:05,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:05,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:05,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:05,582 INFO L87 Difference]: Start difference. First operand 419 states and 1021 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:05,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:05,785 INFO L93 Difference]: Finished difference Result 545 states and 1321 transitions. [2022-01-18 14:08:05,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:05,785 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:05,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:05,786 INFO L225 Difference]: With dead ends: 545 [2022-01-18 14:08:05,786 INFO L226 Difference]: Without dead ends: 429 [2022-01-18 14:08:05,786 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:05,786 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 53 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:05,786 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 275 Invalid, 675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 664 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:05,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2022-01-18 14:08:05,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 423. [2022-01-18 14:08:05,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 422 states have (on average 2.4360189573459716) internal successors, (1028), 422 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:05,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 1028 transitions. [2022-01-18 14:08:05,790 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 1028 transitions. Word has length 26 [2022-01-18 14:08:05,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:05,790 INFO L470 AbstractCegarLoop]: Abstraction has 423 states and 1028 transitions. [2022-01-18 14:08:05,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:05,790 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 1028 transitions. [2022-01-18 14:08:05,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:05,790 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:05,790 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:05,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable360 [2022-01-18 14:08:05,791 INFO L402 AbstractCegarLoop]: === Iteration 362 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:05,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:05,791 INFO L85 PathProgramCache]: Analyzing trace with hash -1226301139, now seen corresponding path program 360 times [2022-01-18 14:08:05,791 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:05,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115934246] [2022-01-18 14:08:05,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:05,791 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:05,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:05,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:05,849 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:05,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115934246] [2022-01-18 14:08:05,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115934246] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:05,849 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:05,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:05,849 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111457283] [2022-01-18 14:08:05,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:05,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:05,850 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:05,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:05,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:05,850 INFO L87 Difference]: Start difference. First operand 423 states and 1028 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:06,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:06,052 INFO L93 Difference]: Finished difference Result 536 states and 1302 transitions. [2022-01-18 14:08:06,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:06,053 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:06,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:06,053 INFO L225 Difference]: With dead ends: 536 [2022-01-18 14:08:06,053 INFO L226 Difference]: Without dead ends: 417 [2022-01-18 14:08:06,053 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:06,053 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 52 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 670 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:06,053 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 271 Invalid, 680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 670 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:06,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2022-01-18 14:08:06,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 409. [2022-01-18 14:08:06,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 408 states have (on average 2.4534313725490198) internal successors, (1001), 408 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:06,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 1001 transitions. [2022-01-18 14:08:06,057 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 1001 transitions. Word has length 26 [2022-01-18 14:08:06,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:06,057 INFO L470 AbstractCegarLoop]: Abstraction has 409 states and 1001 transitions. [2022-01-18 14:08:06,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:06,057 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 1001 transitions. [2022-01-18 14:08:06,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:06,058 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:06,058 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:06,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable361 [2022-01-18 14:08:06,058 INFO L402 AbstractCegarLoop]: === Iteration 363 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:06,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:06,058 INFO L85 PathProgramCache]: Analyzing trace with hash 814130831, now seen corresponding path program 361 times [2022-01-18 14:08:06,058 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:06,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164866893] [2022-01-18 14:08:06,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:06,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:06,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:06,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:06,122 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:06,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164866893] [2022-01-18 14:08:06,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164866893] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:06,122 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:06,122 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:08:06,122 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289567428] [2022-01-18 14:08:06,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:06,122 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:08:06,122 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:06,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:08:06,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:08:06,122 INFO L87 Difference]: Start difference. First operand 409 states and 1001 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:06,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:06,292 INFO L93 Difference]: Finished difference Result 541 states and 1317 transitions. [2022-01-18 14:08:06,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:08:06,292 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:06,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:06,293 INFO L225 Difference]: With dead ends: 541 [2022-01-18 14:08:06,293 INFO L226 Difference]: Without dead ends: 430 [2022-01-18 14:08:06,293 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:08:06,293 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 54 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 544 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:06,293 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 234 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 544 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:06,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2022-01-18 14:08:06,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 426. [2022-01-18 14:08:06,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 425 states have (on average 2.428235294117647) internal successors, (1032), 425 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:06,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 1032 transitions. [2022-01-18 14:08:06,296 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 1032 transitions. Word has length 26 [2022-01-18 14:08:06,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:06,297 INFO L470 AbstractCegarLoop]: Abstraction has 426 states and 1032 transitions. [2022-01-18 14:08:06,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:06,297 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 1032 transitions. [2022-01-18 14:08:06,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:06,297 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:06,297 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:06,297 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable362 [2022-01-18 14:08:06,297 INFO L402 AbstractCegarLoop]: === Iteration 364 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:06,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:06,297 INFO L85 PathProgramCache]: Analyzing trace with hash 1313556945, now seen corresponding path program 362 times [2022-01-18 14:08:06,297 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:06,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907271832] [2022-01-18 14:08:06,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:06,298 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:06,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:06,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:06,381 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:06,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907271832] [2022-01-18 14:08:06,381 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907271832] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:06,381 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:06,381 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:08:06,381 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724313650] [2022-01-18 14:08:06,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:06,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:08:06,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:06,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:08:06,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:08:06,381 INFO L87 Difference]: Start difference. First operand 426 states and 1032 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:06,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:06,549 INFO L93 Difference]: Finished difference Result 544 states and 1316 transitions. [2022-01-18 14:08:06,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:08:06,549 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:06,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:06,549 INFO L225 Difference]: With dead ends: 544 [2022-01-18 14:08:06,549 INFO L226 Difference]: Without dead ends: 444 [2022-01-18 14:08:06,550 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:08:06,550 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 48 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 541 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:06,550 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 221 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 541 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:06,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2022-01-18 14:08:06,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 431. [2022-01-18 14:08:06,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 430 states have (on average 2.425581395348837) internal successors, (1043), 430 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:06,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 1043 transitions. [2022-01-18 14:08:06,553 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 1043 transitions. Word has length 26 [2022-01-18 14:08:06,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:06,553 INFO L470 AbstractCegarLoop]: Abstraction has 431 states and 1043 transitions. [2022-01-18 14:08:06,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:06,554 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 1043 transitions. [2022-01-18 14:08:06,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:06,554 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:06,554 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:06,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable363 [2022-01-18 14:08:06,554 INFO L402 AbstractCegarLoop]: === Iteration 365 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:06,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:06,554 INFO L85 PathProgramCache]: Analyzing trace with hash -2060834385, now seen corresponding path program 363 times [2022-01-18 14:08:06,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:06,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140412464] [2022-01-18 14:08:06,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:06,555 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:06,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:06,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:06,606 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:06,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140412464] [2022-01-18 14:08:06,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140412464] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:06,606 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:06,606 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:08:06,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284951496] [2022-01-18 14:08:06,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:06,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:08:06,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:06,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:08:06,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:08:06,606 INFO L87 Difference]: Start difference. First operand 431 states and 1043 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:06,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:06,773 INFO L93 Difference]: Finished difference Result 539 states and 1307 transitions. [2022-01-18 14:08:06,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:08:06,774 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:06,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:06,774 INFO L225 Difference]: With dead ends: 539 [2022-01-18 14:08:06,774 INFO L226 Difference]: Without dead ends: 431 [2022-01-18 14:08:06,774 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:08:06,774 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 48 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:06,774 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 218 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 545 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:06,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2022-01-18 14:08:06,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 414. [2022-01-18 14:08:06,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 413 states have (on average 2.4455205811138017) internal successors, (1010), 413 states have internal predecessors, (1010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:06,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 1010 transitions. [2022-01-18 14:08:06,778 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 1010 transitions. Word has length 26 [2022-01-18 14:08:06,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:06,778 INFO L470 AbstractCegarLoop]: Abstraction has 414 states and 1010 transitions. [2022-01-18 14:08:06,778 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:06,778 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 1010 transitions. [2022-01-18 14:08:06,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:06,779 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:06,779 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:06,779 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable364 [2022-01-18 14:08:06,779 INFO L402 AbstractCegarLoop]: === Iteration 366 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:06,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:06,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1506122419, now seen corresponding path program 364 times [2022-01-18 14:08:06,779 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:06,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140149992] [2022-01-18 14:08:06,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:06,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:06,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:06,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:06,837 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:06,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140149992] [2022-01-18 14:08:06,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140149992] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:06,837 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:06,837 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:06,837 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714864237] [2022-01-18 14:08:06,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:06,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:06,838 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:06,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:06,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:06,838 INFO L87 Difference]: Start difference. First operand 414 states and 1010 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:07,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:07,046 INFO L93 Difference]: Finished difference Result 552 states and 1354 transitions. [2022-01-18 14:08:07,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:07,046 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:07,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:07,047 INFO L225 Difference]: With dead ends: 552 [2022-01-18 14:08:07,047 INFO L226 Difference]: Without dead ends: 447 [2022-01-18 14:08:07,047 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:07,047 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 59 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:07,047 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 303 Invalid, 703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 695 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:07,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2022-01-18 14:08:07,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 426. [2022-01-18 14:08:07,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 425 states have (on average 2.468235294117647) internal successors, (1049), 425 states have internal predecessors, (1049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:07,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 1049 transitions. [2022-01-18 14:08:07,051 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 1049 transitions. Word has length 26 [2022-01-18 14:08:07,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:07,051 INFO L470 AbstractCegarLoop]: Abstraction has 426 states and 1049 transitions. [2022-01-18 14:08:07,051 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:07,051 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 1049 transitions. [2022-01-18 14:08:07,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:07,051 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:07,051 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:07,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable365 [2022-01-18 14:08:07,052 INFO L402 AbstractCegarLoop]: === Iteration 367 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:07,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:07,053 INFO L85 PathProgramCache]: Analyzing trace with hash -359828879, now seen corresponding path program 365 times [2022-01-18 14:08:07,053 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:07,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185129959] [2022-01-18 14:08:07,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:07,053 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:07,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:07,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:07,115 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:07,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185129959] [2022-01-18 14:08:07,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185129959] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:07,115 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:07,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:07,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76234278] [2022-01-18 14:08:07,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:07,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:07,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:07,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:07,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:07,116 INFO L87 Difference]: Start difference. First operand 426 states and 1049 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:07,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:07,328 INFO L93 Difference]: Finished difference Result 587 states and 1441 transitions. [2022-01-18 14:08:07,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:07,328 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:07,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:07,329 INFO L225 Difference]: With dead ends: 587 [2022-01-18 14:08:07,329 INFO L226 Difference]: Without dead ends: 454 [2022-01-18 14:08:07,329 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:07,329 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 62 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 699 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:07,329 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 290 Invalid, 709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 699 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:07,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2022-01-18 14:08:07,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 438. [2022-01-18 14:08:07,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 437 states have (on average 2.462242562929062) internal successors, (1076), 437 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:07,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 1076 transitions. [2022-01-18 14:08:07,333 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 1076 transitions. Word has length 26 [2022-01-18 14:08:07,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:07,333 INFO L470 AbstractCegarLoop]: Abstraction has 438 states and 1076 transitions. [2022-01-18 14:08:07,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:07,333 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 1076 transitions. [2022-01-18 14:08:07,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:07,334 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:07,334 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:07,334 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable366 [2022-01-18 14:08:07,334 INFO L402 AbstractCegarLoop]: === Iteration 368 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:07,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:07,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1388864917, now seen corresponding path program 366 times [2022-01-18 14:08:07,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:07,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766665866] [2022-01-18 14:08:07,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:07,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:07,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:07,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:07,393 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:07,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766665866] [2022-01-18 14:08:07,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766665866] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:07,393 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:07,393 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:07,393 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584289699] [2022-01-18 14:08:07,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:07,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:07,393 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:07,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:07,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:07,394 INFO L87 Difference]: Start difference. First operand 438 states and 1076 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:07,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:07,602 INFO L93 Difference]: Finished difference Result 557 states and 1384 transitions. [2022-01-18 14:08:07,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:07,602 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:07,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:07,603 INFO L225 Difference]: With dead ends: 557 [2022-01-18 14:08:07,603 INFO L226 Difference]: Without dead ends: 460 [2022-01-18 14:08:07,603 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:07,603 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 53 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 692 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:07,603 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 267 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 692 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:07,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2022-01-18 14:08:07,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 443. [2022-01-18 14:08:07,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 442 states have (on average 2.4683257918552037) internal successors, (1091), 442 states have internal predecessors, (1091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:07,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 1091 transitions. [2022-01-18 14:08:07,607 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 1091 transitions. Word has length 26 [2022-01-18 14:08:07,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:07,607 INFO L470 AbstractCegarLoop]: Abstraction has 443 states and 1091 transitions. [2022-01-18 14:08:07,607 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:07,607 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 1091 transitions. [2022-01-18 14:08:07,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:07,607 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:07,607 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:07,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable367 [2022-01-18 14:08:07,607 INFO L402 AbstractCegarLoop]: === Iteration 369 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:07,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:07,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1337173837, now seen corresponding path program 367 times [2022-01-18 14:08:07,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:07,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980753696] [2022-01-18 14:08:07,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:07,608 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:07,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:07,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:07,666 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:07,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980753696] [2022-01-18 14:08:07,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980753696] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:07,666 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:07,667 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:07,667 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527269961] [2022-01-18 14:08:07,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:07,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:07,667 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:07,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:07,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:07,667 INFO L87 Difference]: Start difference. First operand 443 states and 1091 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:07,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:07,876 INFO L93 Difference]: Finished difference Result 553 states and 1364 transitions. [2022-01-18 14:08:07,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:07,876 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:07,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:07,877 INFO L225 Difference]: With dead ends: 553 [2022-01-18 14:08:07,877 INFO L226 Difference]: Without dead ends: 448 [2022-01-18 14:08:07,877 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:07,877 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 54 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 675 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:07,877 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 258 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 675 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:07,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2022-01-18 14:08:07,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 426. [2022-01-18 14:08:07,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 425 states have (on average 2.4447058823529413) internal successors, (1039), 425 states have internal predecessors, (1039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:07,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 1039 transitions. [2022-01-18 14:08:07,881 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 1039 transitions. Word has length 26 [2022-01-18 14:08:07,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:07,881 INFO L470 AbstractCegarLoop]: Abstraction has 426 states and 1039 transitions. [2022-01-18 14:08:07,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:07,881 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 1039 transitions. [2022-01-18 14:08:07,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:07,881 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:07,881 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:07,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable368 [2022-01-18 14:08:07,881 INFO L402 AbstractCegarLoop]: === Iteration 370 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:07,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:07,882 INFO L85 PathProgramCache]: Analyzing trace with hash -879139765, now seen corresponding path program 368 times [2022-01-18 14:08:07,882 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:07,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611592824] [2022-01-18 14:08:07,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:07,882 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:07,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:07,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:07,941 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:07,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611592824] [2022-01-18 14:08:07,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611592824] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:07,941 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:07,941 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:07,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772811957] [2022-01-18 14:08:07,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:07,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:07,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:07,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:07,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:07,942 INFO L87 Difference]: Start difference. First operand 426 states and 1039 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:08,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:08,144 INFO L93 Difference]: Finished difference Result 558 states and 1354 transitions. [2022-01-18 14:08:08,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:08,144 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:08,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:08,144 INFO L225 Difference]: With dead ends: 558 [2022-01-18 14:08:08,144 INFO L226 Difference]: Without dead ends: 451 [2022-01-18 14:08:08,145 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:08,145 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 47 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:08,145 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 239 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 661 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:08,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2022-01-18 14:08:08,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 436. [2022-01-18 14:08:08,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 435 states have (on average 2.439080459770115) internal successors, (1061), 435 states have internal predecessors, (1061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:08,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 1061 transitions. [2022-01-18 14:08:08,148 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 1061 transitions. Word has length 26 [2022-01-18 14:08:08,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:08,149 INFO L470 AbstractCegarLoop]: Abstraction has 436 states and 1061 transitions. [2022-01-18 14:08:08,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:08,149 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 1061 transitions. [2022-01-18 14:08:08,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:08,149 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:08,149 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:08,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable369 [2022-01-18 14:08:08,149 INFO L402 AbstractCegarLoop]: === Iteration 371 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:08,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:08,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1846898989, now seen corresponding path program 369 times [2022-01-18 14:08:08,149 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:08,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544119213] [2022-01-18 14:08:08,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:08,150 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:08,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:08,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:08,208 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:08,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544119213] [2022-01-18 14:08:08,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544119213] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:08,208 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:08,208 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:08,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323393797] [2022-01-18 14:08:08,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:08,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:08,209 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:08,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:08,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:08,209 INFO L87 Difference]: Start difference. First operand 436 states and 1061 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:08,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:08,406 INFO L93 Difference]: Finished difference Result 542 states and 1322 transitions. [2022-01-18 14:08:08,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:08,406 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:08,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:08,406 INFO L225 Difference]: With dead ends: 542 [2022-01-18 14:08:08,406 INFO L226 Difference]: Without dead ends: 443 [2022-01-18 14:08:08,407 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:08,407 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 46 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:08,407 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 235 Invalid, 667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:08,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2022-01-18 14:08:08,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 438. [2022-01-18 14:08:08,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 437 states have (on average 2.4393592677345537) internal successors, (1066), 437 states have internal predecessors, (1066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:08,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 1066 transitions. [2022-01-18 14:08:08,410 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 1066 transitions. Word has length 26 [2022-01-18 14:08:08,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:08,411 INFO L470 AbstractCegarLoop]: Abstraction has 438 states and 1066 transitions. [2022-01-18 14:08:08,411 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:08,411 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 1066 transitions. [2022-01-18 14:08:08,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:08,411 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:08,411 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:08,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable370 [2022-01-18 14:08:08,411 INFO L402 AbstractCegarLoop]: === Iteration 372 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:08,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:08,411 INFO L85 PathProgramCache]: Analyzing trace with hash -1085947731, now seen corresponding path program 370 times [2022-01-18 14:08:08,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:08,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388272450] [2022-01-18 14:08:08,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:08,412 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:08,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:08,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:08,472 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:08,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388272450] [2022-01-18 14:08:08,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388272450] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:08,472 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:08,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:08,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189395807] [2022-01-18 14:08:08,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:08,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:08,472 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:08,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:08,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:08,472 INFO L87 Difference]: Start difference. First operand 438 states and 1066 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:08,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:08,673 INFO L93 Difference]: Finished difference Result 571 states and 1384 transitions. [2022-01-18 14:08:08,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:08,673 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:08,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:08,674 INFO L225 Difference]: With dead ends: 571 [2022-01-18 14:08:08,674 INFO L226 Difference]: Without dead ends: 461 [2022-01-18 14:08:08,674 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:08,674 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 48 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:08,674 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 241 Invalid, 677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 665 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:08,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2022-01-18 14:08:08,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 445. [2022-01-18 14:08:08,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 444 states have (on average 2.436936936936937) internal successors, (1082), 444 states have internal predecessors, (1082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:08,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 1082 transitions. [2022-01-18 14:08:08,678 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 1082 transitions. Word has length 26 [2022-01-18 14:08:08,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:08,678 INFO L470 AbstractCegarLoop]: Abstraction has 445 states and 1082 transitions. [2022-01-18 14:08:08,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:08,678 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 1082 transitions. [2022-01-18 14:08:08,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:08,678 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:08,679 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:08,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable371 [2022-01-18 14:08:08,679 INFO L402 AbstractCegarLoop]: === Iteration 373 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:08,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:08,679 INFO L85 PathProgramCache]: Analyzing trace with hash 615555117, now seen corresponding path program 371 times [2022-01-18 14:08:08,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:08,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491659280] [2022-01-18 14:08:08,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:08,679 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:08,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:08,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:08,737 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:08,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491659280] [2022-01-18 14:08:08,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491659280] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:08,737 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:08,737 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:08,737 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212213508] [2022-01-18 14:08:08,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:08,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:08,738 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:08,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:08,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:08,738 INFO L87 Difference]: Start difference. First operand 445 states and 1082 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:08,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:08,937 INFO L93 Difference]: Finished difference Result 570 states and 1380 transitions. [2022-01-18 14:08:08,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:08,937 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:08,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:08,937 INFO L225 Difference]: With dead ends: 570 [2022-01-18 14:08:08,937 INFO L226 Difference]: Without dead ends: 468 [2022-01-18 14:08:08,938 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:08,938 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 48 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:08,938 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 238 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 661 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:08,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2022-01-18 14:08:08,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 452. [2022-01-18 14:08:08,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 451 states have (on average 2.432372505543237) internal successors, (1097), 451 states have internal predecessors, (1097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:08,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 1097 transitions. [2022-01-18 14:08:08,942 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 1097 transitions. Word has length 26 [2022-01-18 14:08:08,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:08,942 INFO L470 AbstractCegarLoop]: Abstraction has 452 states and 1097 transitions. [2022-01-18 14:08:08,942 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:08,942 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 1097 transitions. [2022-01-18 14:08:08,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:08,942 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:08,942 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:08,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable372 [2022-01-18 14:08:08,942 INFO L402 AbstractCegarLoop]: === Iteration 374 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:08,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:08,943 INFO L85 PathProgramCache]: Analyzing trace with hash -935650161, now seen corresponding path program 372 times [2022-01-18 14:08:08,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:08,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698648231] [2022-01-18 14:08:08,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:08,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:08,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:09,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:09,001 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:09,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698648231] [2022-01-18 14:08:09,001 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698648231] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:09,001 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:09,001 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:09,001 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360879492] [2022-01-18 14:08:09,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:09,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:09,001 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:09,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:09,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:09,001 INFO L87 Difference]: Start difference. First operand 452 states and 1097 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:09,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:09,201 INFO L93 Difference]: Finished difference Result 564 states and 1379 transitions. [2022-01-18 14:08:09,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:09,201 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:09,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:09,202 INFO L225 Difference]: With dead ends: 564 [2022-01-18 14:08:09,202 INFO L226 Difference]: Without dead ends: 467 [2022-01-18 14:08:09,202 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:09,202 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 47 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 669 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:09,202 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 233 Invalid, 677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 669 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:09,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2022-01-18 14:08:09,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 457. [2022-01-18 14:08:09,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 456 states have (on average 2.43859649122807) internal successors, (1112), 456 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:09,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 1112 transitions. [2022-01-18 14:08:09,206 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 1112 transitions. Word has length 26 [2022-01-18 14:08:09,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:09,206 INFO L470 AbstractCegarLoop]: Abstraction has 457 states and 1112 transitions. [2022-01-18 14:08:09,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:09,206 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 1112 transitions. [2022-01-18 14:08:09,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:09,206 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:09,206 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:09,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable373 [2022-01-18 14:08:09,207 INFO L402 AbstractCegarLoop]: === Iteration 375 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:09,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:09,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1967172589, now seen corresponding path program 373 times [2022-01-18 14:08:09,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:09,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196002027] [2022-01-18 14:08:09,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:09,207 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:09,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:09,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:09,265 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:09,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196002027] [2022-01-18 14:08:09,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196002027] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:09,265 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:09,265 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:09,265 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313343795] [2022-01-18 14:08:09,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:09,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:09,265 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:09,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:09,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:09,266 INFO L87 Difference]: Start difference. First operand 457 states and 1112 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:09,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:09,459 INFO L93 Difference]: Finished difference Result 564 states and 1377 transitions. [2022-01-18 14:08:09,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:09,459 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:09,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:09,460 INFO L225 Difference]: With dead ends: 564 [2022-01-18 14:08:09,460 INFO L226 Difference]: Without dead ends: 460 [2022-01-18 14:08:09,460 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:09,460 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 48 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:09,460 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 224 Invalid, 660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 652 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:09,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2022-01-18 14:08:09,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 445. [2022-01-18 14:08:09,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 444 states have (on average 2.434684684684685) internal successors, (1081), 444 states have internal predecessors, (1081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:09,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 1081 transitions. [2022-01-18 14:08:09,464 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 1081 transitions. Word has length 26 [2022-01-18 14:08:09,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:09,471 INFO L470 AbstractCegarLoop]: Abstraction has 445 states and 1081 transitions. [2022-01-18 14:08:09,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:09,471 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 1081 transitions. [2022-01-18 14:08:09,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:09,472 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:09,472 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:09,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable374 [2022-01-18 14:08:09,472 INFO L402 AbstractCegarLoop]: === Iteration 376 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:09,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:09,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1288349539, now seen corresponding path program 374 times [2022-01-18 14:08:09,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:09,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124778097] [2022-01-18 14:08:09,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:09,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:09,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:09,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:09,528 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:09,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124778097] [2022-01-18 14:08:09,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124778097] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:09,529 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:09,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:09,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275676402] [2022-01-18 14:08:09,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:09,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:09,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:09,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:09,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:09,529 INFO L87 Difference]: Start difference. First operand 445 states and 1081 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:09,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:09,739 INFO L93 Difference]: Finished difference Result 598 states and 1453 transitions. [2022-01-18 14:08:09,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:09,739 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:09,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:09,740 INFO L225 Difference]: With dead ends: 598 [2022-01-18 14:08:09,740 INFO L226 Difference]: Without dead ends: 471 [2022-01-18 14:08:09,740 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:09,740 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 67 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 706 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:09,740 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 331 Invalid, 714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 706 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:09,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2022-01-18 14:08:09,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 445. [2022-01-18 14:08:09,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 444 states have (on average 2.425675675675676) internal successors, (1077), 444 states have internal predecessors, (1077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:09,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 1077 transitions. [2022-01-18 14:08:09,744 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 1077 transitions. Word has length 26 [2022-01-18 14:08:09,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:09,744 INFO L470 AbstractCegarLoop]: Abstraction has 445 states and 1077 transitions. [2022-01-18 14:08:09,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:09,744 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 1077 transitions. [2022-01-18 14:08:09,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:09,744 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:09,744 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:09,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable375 [2022-01-18 14:08:09,745 INFO L402 AbstractCegarLoop]: === Iteration 377 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:09,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:09,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1405607041, now seen corresponding path program 375 times [2022-01-18 14:08:09,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:09,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620658710] [2022-01-18 14:08:09,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:09,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:09,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:09,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:09,802 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:09,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620658710] [2022-01-18 14:08:09,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620658710] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:09,802 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:09,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:09,802 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777744470] [2022-01-18 14:08:09,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:09,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:09,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:09,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:09,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:09,802 INFO L87 Difference]: Start difference. First operand 445 states and 1077 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:10,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:10,012 INFO L93 Difference]: Finished difference Result 583 states and 1427 transitions. [2022-01-18 14:08:10,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:10,012 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:10,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:10,012 INFO L225 Difference]: With dead ends: 583 [2022-01-18 14:08:10,012 INFO L226 Difference]: Without dead ends: 464 [2022-01-18 14:08:10,013 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:10,013 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 61 mSDsluCounter, 549 mSDsCounter, 0 mSdLazyCounter, 703 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:10,013 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 295 Invalid, 711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 703 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:10,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2022-01-18 14:08:10,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 450. [2022-01-18 14:08:10,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 449 states have (on average 2.4320712694877504) internal successors, (1092), 449 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:10,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 1092 transitions. [2022-01-18 14:08:10,017 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 1092 transitions. Word has length 26 [2022-01-18 14:08:10,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:10,017 INFO L470 AbstractCegarLoop]: Abstraction has 450 states and 1092 transitions. [2022-01-18 14:08:10,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:10,017 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 1092 transitions. [2022-01-18 14:08:10,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:10,017 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:10,017 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:10,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable376 [2022-01-18 14:08:10,018 INFO L402 AbstractCegarLoop]: === Iteration 378 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:10,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:10,018 INFO L85 PathProgramCache]: Analyzing trace with hash -163321501, now seen corresponding path program 376 times [2022-01-18 14:08:10,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:10,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271651122] [2022-01-18 14:08:10,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:10,018 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:10,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:10,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:10,076 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:10,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271651122] [2022-01-18 14:08:10,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271651122] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:10,076 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:10,076 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:10,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80768461] [2022-01-18 14:08:10,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:10,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:10,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:10,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:10,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:10,076 INFO L87 Difference]: Start difference. First operand 450 states and 1092 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:10,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:10,278 INFO L93 Difference]: Finished difference Result 599 states and 1449 transitions. [2022-01-18 14:08:10,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:10,278 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:10,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:10,279 INFO L225 Difference]: With dead ends: 599 [2022-01-18 14:08:10,279 INFO L226 Difference]: Without dead ends: 472 [2022-01-18 14:08:10,279 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:10,279 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 62 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:10,279 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 280 Invalid, 678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 668 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:10,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2022-01-18 14:08:10,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 450. [2022-01-18 14:08:10,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 449 states have (on average 2.387527839643653) internal successors, (1072), 449 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:10,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 1072 transitions. [2022-01-18 14:08:10,283 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 1072 transitions. Word has length 26 [2022-01-18 14:08:10,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:10,283 INFO L470 AbstractCegarLoop]: Abstraction has 450 states and 1072 transitions. [2022-01-18 14:08:10,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:10,283 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 1072 transitions. [2022-01-18 14:08:10,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:10,284 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:10,284 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:10,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable377 [2022-01-18 14:08:10,284 INFO L402 AbstractCegarLoop]: === Iteration 379 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:10,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:10,284 INFO L85 PathProgramCache]: Analyzing trace with hash 29359919, now seen corresponding path program 377 times [2022-01-18 14:08:10,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:10,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523422551] [2022-01-18 14:08:10,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:10,284 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:10,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:10,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:10,341 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:10,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523422551] [2022-01-18 14:08:10,341 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523422551] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:10,341 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:10,341 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:10,341 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083542176] [2022-01-18 14:08:10,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:10,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:10,342 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:10,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:10,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:10,342 INFO L87 Difference]: Start difference. First operand 450 states and 1072 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:10,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:10,540 INFO L93 Difference]: Finished difference Result 553 states and 1321 transitions. [2022-01-18 14:08:10,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:10,540 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:10,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:10,541 INFO L225 Difference]: With dead ends: 553 [2022-01-18 14:08:10,541 INFO L226 Difference]: Without dead ends: 420 [2022-01-18 14:08:10,541 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:10,541 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 61 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 654 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 654 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:10,541 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 270 Invalid, 663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 654 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:10,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2022-01-18 14:08:10,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 403. [2022-01-18 14:08:10,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 402 states have (on average 2.388059701492537) internal successors, (960), 402 states have internal predecessors, (960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:10,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 960 transitions. [2022-01-18 14:08:10,545 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 960 transitions. Word has length 26 [2022-01-18 14:08:10,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:10,545 INFO L470 AbstractCegarLoop]: Abstraction has 403 states and 960 transitions. [2022-01-18 14:08:10,545 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:10,545 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 960 transitions. [2022-01-18 14:08:10,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:10,545 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:10,545 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:10,545 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable378 [2022-01-18 14:08:10,545 INFO L402 AbstractCegarLoop]: === Iteration 380 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:10,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:10,546 INFO L85 PathProgramCache]: Analyzing trace with hash -1714387185, now seen corresponding path program 378 times [2022-01-18 14:08:10,546 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:10,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487330159] [2022-01-18 14:08:10,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:10,546 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:10,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:10,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:10,615 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:10,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487330159] [2022-01-18 14:08:10,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487330159] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:10,615 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:10,615 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:08:10,615 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102525293] [2022-01-18 14:08:10,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:10,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:08:10,615 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:10,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:08:10,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:08:10,615 INFO L87 Difference]: Start difference. First operand 403 states and 960 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:10,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:10,783 INFO L93 Difference]: Finished difference Result 542 states and 1283 transitions. [2022-01-18 14:08:10,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:08:10,783 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:10,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:10,784 INFO L225 Difference]: With dead ends: 542 [2022-01-18 14:08:10,784 INFO L226 Difference]: Without dead ends: 426 [2022-01-18 14:08:10,784 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:08:10,784 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 47 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:10,784 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 224 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 545 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:10,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2022-01-18 14:08:10,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 413. [2022-01-18 14:08:10,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 412 states have (on average 2.3640776699029127) internal successors, (974), 412 states have internal predecessors, (974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:10,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 974 transitions. [2022-01-18 14:08:10,788 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 974 transitions. Word has length 26 [2022-01-18 14:08:10,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:10,788 INFO L470 AbstractCegarLoop]: Abstraction has 413 states and 974 transitions. [2022-01-18 14:08:10,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:10,788 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 974 transitions. [2022-01-18 14:08:10,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:10,788 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:10,788 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:10,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable379 [2022-01-18 14:08:10,788 INFO L402 AbstractCegarLoop]: === Iteration 381 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:10,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:10,788 INFO L85 PathProgramCache]: Analyzing trace with hash 1011651569, now seen corresponding path program 379 times [2022-01-18 14:08:10,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:10,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785595312] [2022-01-18 14:08:10,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:10,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:10,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:10,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:10,847 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:10,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785595312] [2022-01-18 14:08:10,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785595312] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:10,847 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:10,847 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:10,847 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528158549] [2022-01-18 14:08:10,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:10,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:10,847 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:10,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:10,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:10,847 INFO L87 Difference]: Start difference. First operand 413 states and 974 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:11,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:11,052 INFO L93 Difference]: Finished difference Result 537 states and 1263 transitions. [2022-01-18 14:08:11,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:11,053 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:11,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:11,054 INFO L225 Difference]: With dead ends: 537 [2022-01-18 14:08:11,054 INFO L226 Difference]: Without dead ends: 418 [2022-01-18 14:08:11,054 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:11,054 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 52 mSDsluCounter, 495 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:11,054 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 276 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 663 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:11,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2022-01-18 14:08:11,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 403. [2022-01-18 14:08:11,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 402 states have (on average 2.3681592039800994) internal successors, (952), 402 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:11,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 952 transitions. [2022-01-18 14:08:11,058 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 952 transitions. Word has length 26 [2022-01-18 14:08:11,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:11,058 INFO L470 AbstractCegarLoop]: Abstraction has 403 states and 952 transitions. [2022-01-18 14:08:11,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:11,058 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 952 transitions. [2022-01-18 14:08:11,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:11,058 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:11,058 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:11,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable380 [2022-01-18 14:08:11,058 INFO L402 AbstractCegarLoop]: === Iteration 382 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:11,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:11,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1099141805, now seen corresponding path program 380 times [2022-01-18 14:08:11,059 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:11,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216632899] [2022-01-18 14:08:11,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:11,059 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:11,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:11,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:11,117 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:11,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216632899] [2022-01-18 14:08:11,117 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216632899] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:11,117 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:11,118 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:11,118 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82563301] [2022-01-18 14:08:11,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:11,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:11,118 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:11,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:11,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:11,118 INFO L87 Difference]: Start difference. First operand 403 states and 952 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:11,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:11,323 INFO L93 Difference]: Finished difference Result 526 states and 1249 transitions. [2022-01-18 14:08:11,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:11,323 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:11,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:11,324 INFO L225 Difference]: With dead ends: 526 [2022-01-18 14:08:11,324 INFO L226 Difference]: Without dead ends: 416 [2022-01-18 14:08:11,324 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:11,324 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 47 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:11,324 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 244 Invalid, 675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 663 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:11,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2022-01-18 14:08:11,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 401. [2022-01-18 14:08:11,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 400 states have (on average 2.365) internal successors, (946), 400 states have internal predecessors, (946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:11,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 946 transitions. [2022-01-18 14:08:11,328 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 946 transitions. Word has length 26 [2022-01-18 14:08:11,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:11,328 INFO L470 AbstractCegarLoop]: Abstraction has 401 states and 946 transitions. [2022-01-18 14:08:11,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:11,328 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 946 transitions. [2022-01-18 14:08:11,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:11,328 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:11,328 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:11,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable381 [2022-01-18 14:08:11,329 INFO L402 AbstractCegarLoop]: === Iteration 383 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:11,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:11,329 INFO L85 PathProgramCache]: Analyzing trace with hash -469786737, now seen corresponding path program 381 times [2022-01-18 14:08:11,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:11,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247182181] [2022-01-18 14:08:11,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:11,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:11,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:11,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:11,388 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:11,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247182181] [2022-01-18 14:08:11,388 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247182181] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:11,388 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:11,388 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:11,388 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115065265] [2022-01-18 14:08:11,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:11,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:11,388 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:11,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:11,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:11,389 INFO L87 Difference]: Start difference. First operand 401 states and 946 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:11,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:11,589 INFO L93 Difference]: Finished difference Result 506 states and 1204 transitions. [2022-01-18 14:08:11,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:11,589 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:11,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:11,590 INFO L225 Difference]: With dead ends: 506 [2022-01-18 14:08:11,590 INFO L226 Difference]: Without dead ends: 407 [2022-01-18 14:08:11,590 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:11,590 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 46 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 656 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:11,590 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 238 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 656 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:11,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2022-01-18 14:08:11,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 401. [2022-01-18 14:08:11,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 400 states have (on average 2.3625) internal successors, (945), 400 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:11,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 945 transitions. [2022-01-18 14:08:11,594 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 945 transitions. Word has length 26 [2022-01-18 14:08:11,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:11,594 INFO L470 AbstractCegarLoop]: Abstraction has 401 states and 945 transitions. [2022-01-18 14:08:11,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:11,594 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 945 transitions. [2022-01-18 14:08:11,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:11,594 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:11,594 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:11,594 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable382 [2022-01-18 14:08:11,594 INFO L402 AbstractCegarLoop]: === Iteration 384 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:11,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:11,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1042631409, now seen corresponding path program 382 times [2022-01-18 14:08:11,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:11,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702794135] [2022-01-18 14:08:11,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:11,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:11,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:11,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:11,653 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:11,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702794135] [2022-01-18 14:08:11,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702794135] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:11,653 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:11,653 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:11,654 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680355196] [2022-01-18 14:08:11,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:11,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:11,654 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:11,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:11,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:11,654 INFO L87 Difference]: Start difference. First operand 401 states and 945 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:11,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:11,854 INFO L93 Difference]: Finished difference Result 513 states and 1227 transitions. [2022-01-18 14:08:11,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:11,855 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:11,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:11,855 INFO L225 Difference]: With dead ends: 513 [2022-01-18 14:08:11,855 INFO L226 Difference]: Without dead ends: 416 [2022-01-18 14:08:11,855 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:11,855 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 47 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 666 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:11,856 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 236 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 666 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:11,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2022-01-18 14:08:11,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 406. [2022-01-18 14:08:11,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 405 states have (on average 2.3703703703703702) internal successors, (960), 405 states have internal predecessors, (960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:11,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 960 transitions. [2022-01-18 14:08:11,859 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 960 transitions. Word has length 26 [2022-01-18 14:08:11,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:11,859 INFO L470 AbstractCegarLoop]: Abstraction has 406 states and 960 transitions. [2022-01-18 14:08:11,859 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:11,859 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 960 transitions. [2022-01-18 14:08:11,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:11,860 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:11,860 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:11,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable383 [2022-01-18 14:08:11,860 INFO L402 AbstractCegarLoop]: === Iteration 385 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:11,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:11,860 INFO L85 PathProgramCache]: Analyzing trace with hash -349513137, now seen corresponding path program 383 times [2022-01-18 14:08:11,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:11,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198852779] [2022-01-18 14:08:11,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:11,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:11,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:11,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:11,918 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:11,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198852779] [2022-01-18 14:08:11,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198852779] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:11,919 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:11,919 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:11,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504697109] [2022-01-18 14:08:11,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:11,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:11,919 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:11,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:11,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:11,919 INFO L87 Difference]: Start difference. First operand 406 states and 960 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:12,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:12,112 INFO L93 Difference]: Finished difference Result 532 states and 1254 transitions. [2022-01-18 14:08:12,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:12,113 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:12,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:12,113 INFO L225 Difference]: With dead ends: 532 [2022-01-18 14:08:12,113 INFO L226 Difference]: Without dead ends: 430 [2022-01-18 14:08:12,113 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:12,114 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 48 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:12,114 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 229 Invalid, 648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 638 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:12,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2022-01-18 14:08:12,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 416. [2022-01-18 14:08:12,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 415 states have (on average 2.346987951807229) internal successors, (974), 415 states have internal predecessors, (974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:12,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 974 transitions. [2022-01-18 14:08:12,117 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 974 transitions. Word has length 26 [2022-01-18 14:08:12,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:12,117 INFO L470 AbstractCegarLoop]: Abstraction has 416 states and 974 transitions. [2022-01-18 14:08:12,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:12,117 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 974 transitions. [2022-01-18 14:08:12,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:12,118 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:12,118 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:12,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable384 [2022-01-18 14:08:12,118 INFO L402 AbstractCegarLoop]: === Iteration 386 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:12,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:12,118 INFO L85 PathProgramCache]: Analyzing trace with hash -18146681, now seen corresponding path program 384 times [2022-01-18 14:08:12,118 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:12,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818231241] [2022-01-18 14:08:12,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:12,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:12,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:12,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:12,178 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:12,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818231241] [2022-01-18 14:08:12,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818231241] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:12,178 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:12,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:12,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943084134] [2022-01-18 14:08:12,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:12,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:12,179 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:12,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:12,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:12,179 INFO L87 Difference]: Start difference. First operand 416 states and 974 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:12,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:12,370 INFO L93 Difference]: Finished difference Result 513 states and 1207 transitions. [2022-01-18 14:08:12,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:12,370 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:12,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:12,371 INFO L225 Difference]: With dead ends: 513 [2022-01-18 14:08:12,371 INFO L226 Difference]: Without dead ends: 404 [2022-01-18 14:08:12,371 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:12,371 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 53 mSDsluCounter, 468 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:12,371 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 253 Invalid, 648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 639 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:12,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2022-01-18 14:08:12,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 381. [2022-01-18 14:08:12,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 380 states have (on average 2.363157894736842) internal successors, (898), 380 states have internal predecessors, (898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:12,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 898 transitions. [2022-01-18 14:08:12,375 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 898 transitions. Word has length 26 [2022-01-18 14:08:12,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:12,375 INFO L470 AbstractCegarLoop]: Abstraction has 381 states and 898 transitions. [2022-01-18 14:08:12,375 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:12,375 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 898 transitions. [2022-01-18 14:08:12,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:12,375 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:12,375 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:12,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable385 [2022-01-18 14:08:12,375 INFO L402 AbstractCegarLoop]: === Iteration 387 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:12,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:12,375 INFO L85 PathProgramCache]: Analyzing trace with hash -320428265, now seen corresponding path program 385 times [2022-01-18 14:08:12,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:12,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254637099] [2022-01-18 14:08:12,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:12,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:12,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:12,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:12,432 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:12,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254637099] [2022-01-18 14:08:12,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254637099] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:12,432 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:12,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:12,432 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616193996] [2022-01-18 14:08:12,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:12,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:12,432 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:12,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:12,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:12,433 INFO L87 Difference]: Start difference. First operand 381 states and 898 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:12,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:12,625 INFO L93 Difference]: Finished difference Result 499 states and 1177 transitions. [2022-01-18 14:08:12,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:12,625 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:12,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:12,626 INFO L225 Difference]: With dead ends: 499 [2022-01-18 14:08:12,626 INFO L226 Difference]: Without dead ends: 381 [2022-01-18 14:08:12,626 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:12,626 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 58 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 645 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:12,626 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 296 Invalid, 653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 645 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:12,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2022-01-18 14:08:12,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 381. [2022-01-18 14:08:12,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 380 states have (on average 2.331578947368421) internal successors, (886), 380 states have internal predecessors, (886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:12,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 886 transitions. [2022-01-18 14:08:12,629 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 886 transitions. Word has length 26 [2022-01-18 14:08:12,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:12,629 INFO L470 AbstractCegarLoop]: Abstraction has 381 states and 886 transitions. [2022-01-18 14:08:12,629 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:12,629 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 886 transitions. [2022-01-18 14:08:12,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:12,630 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:12,630 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:12,630 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable386 [2022-01-18 14:08:12,630 INFO L402 AbstractCegarLoop]: === Iteration 388 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:12,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:12,630 INFO L85 PathProgramCache]: Analyzing trace with hash 178997849, now seen corresponding path program 386 times [2022-01-18 14:08:12,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:12,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715234215] [2022-01-18 14:08:12,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:12,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:12,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:12,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:12,689 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:12,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715234215] [2022-01-18 14:08:12,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715234215] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:12,689 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:12,689 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:12,689 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595014337] [2022-01-18 14:08:12,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:12,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:12,689 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:12,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:12,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:12,690 INFO L87 Difference]: Start difference. First operand 381 states and 886 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:12,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:12,883 INFO L93 Difference]: Finished difference Result 491 states and 1149 transitions. [2022-01-18 14:08:12,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:12,884 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:12,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:12,884 INFO L225 Difference]: With dead ends: 491 [2022-01-18 14:08:12,884 INFO L226 Difference]: Without dead ends: 384 [2022-01-18 14:08:12,884 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:12,884 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 52 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:12,885 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 275 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:12,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2022-01-18 14:08:12,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 381. [2022-01-18 14:08:12,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 380 states have (on average 2.3263157894736843) internal successors, (884), 380 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:12,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 884 transitions. [2022-01-18 14:08:12,888 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 884 transitions. Word has length 26 [2022-01-18 14:08:12,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:12,888 INFO L470 AbstractCegarLoop]: Abstraction has 381 states and 884 transitions. [2022-01-18 14:08:12,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:12,888 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 884 transitions. [2022-01-18 14:08:12,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:12,888 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:12,888 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:12,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable387 [2022-01-18 14:08:12,888 INFO L402 AbstractCegarLoop]: === Iteration 389 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:12,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:12,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1099573815, now seen corresponding path program 387 times [2022-01-18 14:08:12,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:12,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307142560] [2022-01-18 14:08:12,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:12,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:12,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:12,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:12,948 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:12,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307142560] [2022-01-18 14:08:12,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307142560] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:12,948 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:12,949 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:12,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648778887] [2022-01-18 14:08:12,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:12,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:12,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:12,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:12,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:12,949 INFO L87 Difference]: Start difference. First operand 381 states and 884 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:13,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:13,143 INFO L93 Difference]: Finished difference Result 484 states and 1132 transitions. [2022-01-18 14:08:13,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:13,143 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:13,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:13,144 INFO L225 Difference]: With dead ends: 484 [2022-01-18 14:08:13,144 INFO L226 Difference]: Without dead ends: 369 [2022-01-18 14:08:13,144 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:13,144 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 52 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:13,144 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 270 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 638 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:13,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2022-01-18 14:08:13,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 369. [2022-01-18 14:08:13,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 368 states have (on average 2.3369565217391304) internal successors, (860), 368 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:13,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 860 transitions. [2022-01-18 14:08:13,147 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 860 transitions. Word has length 26 [2022-01-18 14:08:13,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:13,147 INFO L470 AbstractCegarLoop]: Abstraction has 369 states and 860 transitions. [2022-01-18 14:08:13,147 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:13,147 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 860 transitions. [2022-01-18 14:08:13,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:13,148 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:13,148 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:13,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable388 [2022-01-18 14:08:13,148 INFO L402 AbstractCegarLoop]: === Iteration 390 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:13,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:13,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1654285781, now seen corresponding path program 388 times [2022-01-18 14:08:13,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:13,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996208264] [2022-01-18 14:08:13,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:13,148 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:13,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:13,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:13,205 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:13,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996208264] [2022-01-18 14:08:13,206 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996208264] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:13,206 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:13,206 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:13,206 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598393354] [2022-01-18 14:08:13,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:13,206 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:13,206 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:13,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:13,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:13,206 INFO L87 Difference]: Start difference. First operand 369 states and 860 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:13,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:13,403 INFO L93 Difference]: Finished difference Result 497 states and 1163 transitions. [2022-01-18 14:08:13,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:13,404 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:13,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:13,404 INFO L225 Difference]: With dead ends: 497 [2022-01-18 14:08:13,404 INFO L226 Difference]: Without dead ends: 349 [2022-01-18 14:08:13,404 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:13,404 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 57 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:13,404 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 298 Invalid, 665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 655 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:13,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2022-01-18 14:08:13,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 345. [2022-01-18 14:08:13,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 344 states have (on average 2.3197674418604652) internal successors, (798), 344 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:13,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 798 transitions. [2022-01-18 14:08:13,407 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 798 transitions. Word has length 26 [2022-01-18 14:08:13,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:13,408 INFO L470 AbstractCegarLoop]: Abstraction has 345 states and 798 transitions. [2022-01-18 14:08:13,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:13,408 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 798 transitions. [2022-01-18 14:08:13,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:13,408 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:13,408 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:13,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable389 [2022-01-18 14:08:13,408 INFO L402 AbstractCegarLoop]: === Iteration 391 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:13,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:13,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1494387975, now seen corresponding path program 389 times [2022-01-18 14:08:13,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:13,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655694977] [2022-01-18 14:08:13,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:13,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:13,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:13,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:13,470 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:13,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655694977] [2022-01-18 14:08:13,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655694977] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:13,470 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:13,470 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:13,470 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205785063] [2022-01-18 14:08:13,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:13,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:13,470 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:13,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:13,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:13,471 INFO L87 Difference]: Start difference. First operand 345 states and 798 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:13,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:13,669 INFO L93 Difference]: Finished difference Result 469 states and 1098 transitions. [2022-01-18 14:08:13,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:13,670 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:13,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:13,670 INFO L225 Difference]: With dead ends: 469 [2022-01-18 14:08:13,670 INFO L226 Difference]: Without dead ends: 357 [2022-01-18 14:08:13,670 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:13,670 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 58 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 646 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:13,670 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 294 Invalid, 654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 646 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:13,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2022-01-18 14:08:13,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 357. [2022-01-18 14:08:13,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 356 states have (on average 2.308988764044944) internal successors, (822), 356 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:13,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 822 transitions. [2022-01-18 14:08:13,673 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 822 transitions. Word has length 26 [2022-01-18 14:08:13,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:13,673 INFO L470 AbstractCegarLoop]: Abstraction has 357 states and 822 transitions. [2022-01-18 14:08:13,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:13,673 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 822 transitions. [2022-01-18 14:08:13,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:13,674 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:13,674 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:13,674 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable390 [2022-01-18 14:08:13,674 INFO L402 AbstractCegarLoop]: === Iteration 392 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:13,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:13,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1771543283, now seen corresponding path program 390 times [2022-01-18 14:08:13,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:13,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564202867] [2022-01-18 14:08:13,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:13,674 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:13,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:13,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:13,733 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:13,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564202867] [2022-01-18 14:08:13,734 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564202867] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:13,734 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:13,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:13,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36397707] [2022-01-18 14:08:13,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:13,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:13,734 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:13,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:13,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:13,734 INFO L87 Difference]: Start difference. First operand 357 states and 822 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:13,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:13,930 INFO L93 Difference]: Finished difference Result 474 states and 1113 transitions. [2022-01-18 14:08:13,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:13,930 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:13,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:13,931 INFO L225 Difference]: With dead ends: 474 [2022-01-18 14:08:13,931 INFO L226 Difference]: Without dead ends: 376 [2022-01-18 14:08:13,931 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:13,931 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 51 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 647 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:13,931 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 269 Invalid, 655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 647 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:13,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2022-01-18 14:08:13,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 362. [2022-01-18 14:08:13,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 361 states have (on average 2.3185595567867034) internal successors, (837), 361 states have internal predecessors, (837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:13,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 837 transitions. [2022-01-18 14:08:13,934 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 837 transitions. Word has length 26 [2022-01-18 14:08:13,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:13,934 INFO L470 AbstractCegarLoop]: Abstraction has 362 states and 837 transitions. [2022-01-18 14:08:13,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:13,934 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 837 transitions. [2022-01-18 14:08:13,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:13,934 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:13,935 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:13,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable391 [2022-01-18 14:08:13,935 INFO L402 AbstractCegarLoop]: === Iteration 393 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:13,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:13,935 INFO L85 PathProgramCache]: Analyzing trace with hash 202614741, now seen corresponding path program 391 times [2022-01-18 14:08:13,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:13,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003458014] [2022-01-18 14:08:13,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:13,935 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:13,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:13,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:13,994 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:13,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003458014] [2022-01-18 14:08:13,994 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003458014] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:13,994 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:13,994 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:13,994 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821950933] [2022-01-18 14:08:13,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:13,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:13,994 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:13,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:13,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:13,995 INFO L87 Difference]: Start difference. First operand 362 states and 837 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:14,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:14,189 INFO L93 Difference]: Finished difference Result 470 states and 1093 transitions. [2022-01-18 14:08:14,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:14,189 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:14,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:14,190 INFO L225 Difference]: With dead ends: 470 [2022-01-18 14:08:14,190 INFO L226 Difference]: Without dead ends: 364 [2022-01-18 14:08:14,190 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:14,190 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 52 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:14,190 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 256 Invalid, 635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 627 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:14,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2022-01-18 14:08:14,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 345. [2022-01-18 14:08:14,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 344 states have (on average 2.3052325581395348) internal successors, (793), 344 states have internal predecessors, (793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:14,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 793 transitions. [2022-01-18 14:08:14,193 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 793 transitions. Word has length 26 [2022-01-18 14:08:14,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:14,193 INFO L470 AbstractCegarLoop]: Abstraction has 345 states and 793 transitions. [2022-01-18 14:08:14,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:14,193 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 793 transitions. [2022-01-18 14:08:14,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:14,193 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:14,194 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:14,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable392 [2022-01-18 14:08:14,194 INFO L402 AbstractCegarLoop]: === Iteration 394 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:14,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:14,194 INFO L85 PathProgramCache]: Analyzing trace with hash -2013698861, now seen corresponding path program 392 times [2022-01-18 14:08:14,194 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:14,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557015731] [2022-01-18 14:08:14,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:14,194 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:14,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:14,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:14,253 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:14,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557015731] [2022-01-18 14:08:14,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557015731] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:14,253 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:14,253 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:14,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282909973] [2022-01-18 14:08:14,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:14,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:14,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:14,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:14,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:14,254 INFO L87 Difference]: Start difference. First operand 345 states and 793 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:14,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:14,442 INFO L93 Difference]: Finished difference Result 452 states and 1049 transitions. [2022-01-18 14:08:14,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:14,442 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:14,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:14,443 INFO L225 Difference]: With dead ends: 452 [2022-01-18 14:08:14,443 INFO L226 Difference]: Without dead ends: 346 [2022-01-18 14:08:14,443 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:14,443 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 45 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:14,443 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 241 Invalid, 626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 615 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:14,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2022-01-18 14:08:14,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 341. [2022-01-18 14:08:14,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 340 states have (on average 2.3058823529411763) internal successors, (784), 340 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:14,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 784 transitions. [2022-01-18 14:08:14,446 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 784 transitions. Word has length 26 [2022-01-18 14:08:14,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:14,446 INFO L470 AbstractCegarLoop]: Abstraction has 341 states and 784 transitions. [2022-01-18 14:08:14,446 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:14,446 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 784 transitions. [2022-01-18 14:08:14,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:14,446 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:14,446 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:14,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable393 [2022-01-18 14:08:14,446 INFO L402 AbstractCegarLoop]: === Iteration 395 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:14,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:14,447 INFO L85 PathProgramCache]: Analyzing trace with hash 712339893, now seen corresponding path program 393 times [2022-01-18 14:08:14,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:14,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276982950] [2022-01-18 14:08:14,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:14,447 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:14,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:14,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:14,515 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:14,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276982950] [2022-01-18 14:08:14,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276982950] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:14,515 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:14,515 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:14,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957683222] [2022-01-18 14:08:14,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:14,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:14,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:14,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:14,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:14,516 INFO L87 Difference]: Start difference. First operand 341 states and 784 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:14,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:14,702 INFO L93 Difference]: Finished difference Result 448 states and 1039 transitions. [2022-01-18 14:08:14,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:14,702 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:14,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:14,702 INFO L225 Difference]: With dead ends: 448 [2022-01-18 14:08:14,703 INFO L226 Difference]: Without dead ends: 348 [2022-01-18 14:08:14,703 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:14,703 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 44 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:14,703 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 239 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 610 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:14,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2022-01-18 14:08:14,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 344. [2022-01-18 14:08:14,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 343 states have (on average 2.2973760932944605) internal successors, (788), 343 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:14,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 788 transitions. [2022-01-18 14:08:14,706 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 788 transitions. Word has length 26 [2022-01-18 14:08:14,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:14,706 INFO L470 AbstractCegarLoop]: Abstraction has 344 states and 788 transitions. [2022-01-18 14:08:14,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:14,706 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 788 transitions. [2022-01-18 14:08:14,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:14,706 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:14,706 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:14,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable394 [2022-01-18 14:08:14,706 INFO L402 AbstractCegarLoop]: === Iteration 396 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:14,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:14,707 INFO L85 PathProgramCache]: Analyzing trace with hash 2074460469, now seen corresponding path program 394 times [2022-01-18 14:08:14,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:14,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47336580] [2022-01-18 14:08:14,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:14,707 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:14,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:14,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:14,766 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:14,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47336580] [2022-01-18 14:08:14,766 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47336580] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:14,766 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:14,766 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:14,766 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591331518] [2022-01-18 14:08:14,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:14,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:14,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:14,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:14,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:14,766 INFO L87 Difference]: Start difference. First operand 344 states and 788 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:14,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:14,956 INFO L93 Difference]: Finished difference Result 453 states and 1051 transitions. [2022-01-18 14:08:14,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:14,956 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:14,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:14,956 INFO L225 Difference]: With dead ends: 453 [2022-01-18 14:08:14,956 INFO L226 Difference]: Without dead ends: 352 [2022-01-18 14:08:14,957 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:14,957 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 46 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:14,957 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 239 Invalid, 627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 618 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:14,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2022-01-18 14:08:14,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 345. [2022-01-18 14:08:14,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 344 states have (on average 2.2936046511627906) internal successors, (789), 344 states have internal predecessors, (789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:14,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 789 transitions. [2022-01-18 14:08:14,960 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 789 transitions. Word has length 26 [2022-01-18 14:08:14,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:14,960 INFO L470 AbstractCegarLoop]: Abstraction has 345 states and 789 transitions. [2022-01-18 14:08:14,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:14,960 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 789 transitions. [2022-01-18 14:08:14,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:14,960 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:14,960 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:14,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable395 [2022-01-18 14:08:14,960 INFO L402 AbstractCegarLoop]: === Iteration 397 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:14,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:14,960 INFO L85 PathProgramCache]: Analyzing trace with hash -519003979, now seen corresponding path program 395 times [2022-01-18 14:08:14,960 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:14,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058136557] [2022-01-18 14:08:14,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:14,961 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:14,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:15,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:15,020 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:15,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058136557] [2022-01-18 14:08:15,020 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058136557] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:15,020 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:15,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:15,021 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004182001] [2022-01-18 14:08:15,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:15,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:15,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:15,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:15,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:15,021 INFO L87 Difference]: Start difference. First operand 345 states and 789 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:15,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:15,212 INFO L93 Difference]: Finished difference Result 452 states and 1045 transitions. [2022-01-18 14:08:15,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:15,212 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:15,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:15,213 INFO L225 Difference]: With dead ends: 452 [2022-01-18 14:08:15,213 INFO L226 Difference]: Without dead ends: 349 [2022-01-18 14:08:15,213 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:15,213 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 46 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:15,213 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 234 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 625 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:15,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2022-01-18 14:08:15,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 346. [2022-01-18 14:08:15,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 345 states have (on average 2.289855072463768) internal successors, (790), 345 states have internal predecessors, (790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:15,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 790 transitions. [2022-01-18 14:08:15,216 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 790 transitions. Word has length 26 [2022-01-18 14:08:15,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:15,216 INFO L470 AbstractCegarLoop]: Abstraction has 346 states and 790 transitions. [2022-01-18 14:08:15,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:15,216 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 790 transitions. [2022-01-18 14:08:15,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:15,217 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:15,217 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:15,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable396 [2022-01-18 14:08:15,217 INFO L402 AbstractCegarLoop]: === Iteration 398 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:15,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:15,217 INFO L85 PathProgramCache]: Analyzing trace with hash -2070209257, now seen corresponding path program 396 times [2022-01-18 14:08:15,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:15,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494564710] [2022-01-18 14:08:15,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:15,217 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:15,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:15,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:15,275 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:15,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494564710] [2022-01-18 14:08:15,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494564710] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:15,275 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:15,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:15,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647583101] [2022-01-18 14:08:15,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:15,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:15,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:15,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:15,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:15,276 INFO L87 Difference]: Start difference. First operand 346 states and 790 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:15,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:15,469 INFO L93 Difference]: Finished difference Result 456 states and 1063 transitions. [2022-01-18 14:08:15,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:15,470 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:15,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:15,470 INFO L225 Difference]: With dead ends: 456 [2022-01-18 14:08:15,470 INFO L226 Difference]: Without dead ends: 358 [2022-01-18 14:08:15,470 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:15,470 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 45 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 633 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:15,470 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 235 Invalid, 641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 633 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:15,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2022-01-18 14:08:15,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 351. [2022-01-18 14:08:15,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 350 states have (on average 2.3) internal successors, (805), 350 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:15,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 805 transitions. [2022-01-18 14:08:15,473 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 805 transitions. Word has length 26 [2022-01-18 14:08:15,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:15,473 INFO L470 AbstractCegarLoop]: Abstraction has 351 states and 805 transitions. [2022-01-18 14:08:15,474 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:15,474 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 805 transitions. [2022-01-18 14:08:15,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:15,474 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:15,474 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:15,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable397 [2022-01-18 14:08:15,474 INFO L402 AbstractCegarLoop]: === Iteration 399 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:15,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:15,474 INFO L85 PathProgramCache]: Analyzing trace with hash 832613493, now seen corresponding path program 397 times [2022-01-18 14:08:15,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:15,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164518228] [2022-01-18 14:08:15,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:15,474 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:15,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:15,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:15,534 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:15,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164518228] [2022-01-18 14:08:15,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164518228] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:15,534 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:15,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:15,534 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883789368] [2022-01-18 14:08:15,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:15,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:15,534 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:15,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:15,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:15,534 INFO L87 Difference]: Start difference. First operand 351 states and 805 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:15,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:15,722 INFO L93 Difference]: Finished difference Result 456 states and 1056 transitions. [2022-01-18 14:08:15,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:15,722 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:15,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:15,722 INFO L225 Difference]: With dead ends: 456 [2022-01-18 14:08:15,722 INFO L226 Difference]: Without dead ends: 351 [2022-01-18 14:08:15,722 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:15,722 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 46 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 613 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:15,723 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 222 Invalid, 621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 613 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:15,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2022-01-18 14:08:15,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 339. [2022-01-18 14:08:15,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 338 states have (on average 2.298816568047337) internal successors, (777), 338 states have internal predecessors, (777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:15,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 777 transitions. [2022-01-18 14:08:15,725 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 777 transitions. Word has length 26 [2022-01-18 14:08:15,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:15,725 INFO L470 AbstractCegarLoop]: Abstraction has 339 states and 777 transitions. [2022-01-18 14:08:15,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:15,726 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 777 transitions. [2022-01-18 14:08:15,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:15,726 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:15,726 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:15,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable398 [2022-01-18 14:08:15,726 INFO L402 AbstractCegarLoop]: === Iteration 400 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:15,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:15,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1817674631, now seen corresponding path program 398 times [2022-01-18 14:08:15,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:15,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226375117] [2022-01-18 14:08:15,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:15,726 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:15,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:15,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:15,789 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:15,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226375117] [2022-01-18 14:08:15,789 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226375117] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:15,789 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:15,789 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:15,789 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721025132] [2022-01-18 14:08:15,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:15,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:15,789 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:15,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:15,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:15,790 INFO L87 Difference]: Start difference. First operand 339 states and 777 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:15,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:15,984 INFO L93 Difference]: Finished difference Result 462 states and 1071 transitions. [2022-01-18 14:08:15,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:15,984 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:15,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:15,984 INFO L225 Difference]: With dead ends: 462 [2022-01-18 14:08:15,984 INFO L226 Difference]: Without dead ends: 311 [2022-01-18 14:08:15,984 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:15,985 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 64 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 641 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:15,985 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 321 Invalid, 649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 641 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:15,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2022-01-18 14:08:15,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 311. [2022-01-18 14:08:15,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 310 states have (on average 2.274193548387097) internal successors, (705), 310 states have internal predecessors, (705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:15,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 705 transitions. [2022-01-18 14:08:15,987 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 705 transitions. Word has length 26 [2022-01-18 14:08:15,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:15,987 INFO L470 AbstractCegarLoop]: Abstraction has 311 states and 705 transitions. [2022-01-18 14:08:15,987 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:15,987 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 705 transitions. [2022-01-18 14:08:15,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:15,988 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:15,988 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:15,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable399 [2022-01-18 14:08:15,988 INFO L402 AbstractCegarLoop]: === Iteration 401 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:15,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:15,988 INFO L85 PathProgramCache]: Analyzing trace with hash 788638593, now seen corresponding path program 399 times [2022-01-18 14:08:15,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:15,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506439800] [2022-01-18 14:08:15,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:15,988 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:15,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:16,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:16,050 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:16,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506439800] [2022-01-18 14:08:16,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506439800] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:16,050 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:16,050 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:16,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959606923] [2022-01-18 14:08:16,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:16,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:16,050 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:16,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:16,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:16,050 INFO L87 Difference]: Start difference. First operand 311 states and 705 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:16,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:16,244 INFO L93 Difference]: Finished difference Result 447 states and 1032 transitions. [2022-01-18 14:08:16,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:16,244 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:16,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:16,244 INFO L225 Difference]: With dead ends: 447 [2022-01-18 14:08:16,244 INFO L226 Difference]: Without dead ends: 326 [2022-01-18 14:08:16,245 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:16,245 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 57 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:16,245 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 298 Invalid, 648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 638 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:16,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2022-01-18 14:08:16,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 326. [2022-01-18 14:08:16,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 325 states have (on average 2.252307692307692) internal successors, (732), 325 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:16,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 732 transitions. [2022-01-18 14:08:16,247 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 732 transitions. Word has length 26 [2022-01-18 14:08:16,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:16,248 INFO L470 AbstractCegarLoop]: Abstraction has 326 states and 732 transitions. [2022-01-18 14:08:16,248 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:16,248 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 732 transitions. [2022-01-18 14:08:16,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:16,248 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:16,248 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:16,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable400 [2022-01-18 14:08:16,248 INFO L402 AbstractCegarLoop]: === Iteration 402 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:16,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:16,248 INFO L85 PathProgramCache]: Analyzing trace with hash -780289949, now seen corresponding path program 400 times [2022-01-18 14:08:16,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:16,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144579874] [2022-01-18 14:08:16,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:16,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:16,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:16,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:16,317 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:16,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144579874] [2022-01-18 14:08:16,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144579874] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:16,317 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:16,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:16,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869369000] [2022-01-18 14:08:16,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:16,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:16,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:16,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:16,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:16,317 INFO L87 Difference]: Start difference. First operand 326 states and 732 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:16,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:16,505 INFO L93 Difference]: Finished difference Result 451 states and 1024 transitions. [2022-01-18 14:08:16,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:16,505 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:16,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:16,506 INFO L225 Difference]: With dead ends: 451 [2022-01-18 14:08:16,506 INFO L226 Difference]: Without dead ends: 322 [2022-01-18 14:08:16,506 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:16,506 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 58 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 606 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:16,506 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 275 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 606 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:16,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2022-01-18 14:08:16,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 314. [2022-01-18 14:08:16,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 313 states have (on average 2.2396166134185305) internal successors, (701), 313 states have internal predecessors, (701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:16,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 701 transitions. [2022-01-18 14:08:16,509 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 701 transitions. Word has length 26 [2022-01-18 14:08:16,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:16,509 INFO L470 AbstractCegarLoop]: Abstraction has 314 states and 701 transitions. [2022-01-18 14:08:16,509 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:16,509 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 701 transitions. [2022-01-18 14:08:16,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:16,509 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:16,509 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:16,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable401 [2022-01-18 14:08:16,509 INFO L402 AbstractCegarLoop]: === Iteration 403 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:16,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:16,509 INFO L85 PathProgramCache]: Analyzing trace with hash -937628007, now seen corresponding path program 401 times [2022-01-18 14:08:16,509 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:16,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026708399] [2022-01-18 14:08:16,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:16,510 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:16,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:16,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:16,584 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:16,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026708399] [2022-01-18 14:08:16,584 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026708399] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:16,584 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:16,584 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:16,584 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859348312] [2022-01-18 14:08:16,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:16,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:16,584 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:16,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:16,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:16,584 INFO L87 Difference]: Start difference. First operand 314 states and 701 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:16,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:16,766 INFO L93 Difference]: Finished difference Result 411 states and 939 transitions. [2022-01-18 14:08:16,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:16,766 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:16,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:16,766 INFO L225 Difference]: With dead ends: 411 [2022-01-18 14:08:16,766 INFO L226 Difference]: Without dead ends: 282 [2022-01-18 14:08:16,766 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:16,766 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 57 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:16,766 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 269 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 578 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:16,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2022-01-18 14:08:16,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 273. [2022-01-18 14:08:16,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 272 states have (on average 2.2426470588235294) internal successors, (610), 272 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:16,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 610 transitions. [2022-01-18 14:08:16,769 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 610 transitions. Word has length 26 [2022-01-18 14:08:16,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:16,769 INFO L470 AbstractCegarLoop]: Abstraction has 273 states and 610 transitions. [2022-01-18 14:08:16,769 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:16,769 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 610 transitions. [2022-01-18 14:08:16,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:16,769 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:16,769 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:16,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable402 [2022-01-18 14:08:16,769 INFO L402 AbstractCegarLoop]: === Iteration 404 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:16,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:16,770 INFO L85 PathProgramCache]: Analyzing trace with hash -262127465, now seen corresponding path program 402 times [2022-01-18 14:08:16,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:16,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312933975] [2022-01-18 14:08:16,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:16,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:16,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:16,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:16,842 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:16,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312933975] [2022-01-18 14:08:16,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312933975] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:16,842 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:16,842 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:16,842 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898802424] [2022-01-18 14:08:16,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:16,842 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:16,842 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:16,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:16,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:16,843 INFO L87 Difference]: Start difference. First operand 273 states and 610 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:17,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:17,029 INFO L93 Difference]: Finished difference Result 364 states and 835 transitions. [2022-01-18 14:08:17,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:17,029 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:17,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:17,030 INFO L225 Difference]: With dead ends: 364 [2022-01-18 14:08:17,030 INFO L226 Difference]: Without dead ends: 253 [2022-01-18 14:08:17,030 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:17,030 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 45 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:17,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 243 Invalid, 598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:17,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2022-01-18 14:08:17,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 244. [2022-01-18 14:08:17,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 243 states have (on average 2.2757201646090537) internal successors, (553), 243 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:17,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 553 transitions. [2022-01-18 14:08:17,032 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 553 transitions. Word has length 26 [2022-01-18 14:08:17,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:17,032 INFO L470 AbstractCegarLoop]: Abstraction has 244 states and 553 transitions. [2022-01-18 14:08:17,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:17,032 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 553 transitions. [2022-01-18 14:08:17,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:17,033 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:17,033 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:17,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable403 [2022-01-18 14:08:17,033 INFO L402 AbstractCegarLoop]: === Iteration 405 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:17,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:17,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1439375383, now seen corresponding path program 403 times [2022-01-18 14:08:17,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:17,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280224908] [2022-01-18 14:08:17,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:17,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:17,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:17,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:17,093 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:17,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280224908] [2022-01-18 14:08:17,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280224908] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:17,093 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:17,093 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:17,093 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752762495] [2022-01-18 14:08:17,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:17,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:17,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:17,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:17,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:17,094 INFO L87 Difference]: Start difference. First operand 244 states and 553 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:17,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:17,280 INFO L93 Difference]: Finished difference Result 350 states and 808 transitions. [2022-01-18 14:08:17,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:17,280 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:17,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:17,281 INFO L225 Difference]: With dead ends: 350 [2022-01-18 14:08:17,281 INFO L226 Difference]: Without dead ends: 250 [2022-01-18 14:08:17,281 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:17,281 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 45 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 604 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:17,281 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 238 Invalid, 612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 604 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:17,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2022-01-18 14:08:17,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 244. [2022-01-18 14:08:17,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 243 states have (on average 2.271604938271605) internal successors, (552), 243 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:17,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 552 transitions. [2022-01-18 14:08:17,283 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 552 transitions. Word has length 26 [2022-01-18 14:08:17,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:17,283 INFO L470 AbstractCegarLoop]: Abstraction has 244 states and 552 transitions. [2022-01-18 14:08:17,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:17,283 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 552 transitions. [2022-01-18 14:08:17,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:17,284 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:17,284 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:17,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable404 [2022-01-18 14:08:17,284 INFO L402 AbstractCegarLoop]: === Iteration 406 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:17,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:17,284 INFO L85 PathProgramCache]: Analyzing trace with hash -111829895, now seen corresponding path program 404 times [2022-01-18 14:08:17,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:17,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284765066] [2022-01-18 14:08:17,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:17,284 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:17,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:17,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:17,344 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:17,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284765066] [2022-01-18 14:08:17,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284765066] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:17,344 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:17,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:17,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682834331] [2022-01-18 14:08:17,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:17,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:17,344 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:17,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:17,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:17,344 INFO L87 Difference]: Start difference. First operand 244 states and 552 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:17,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:17,525 INFO L93 Difference]: Finished difference Result 360 states and 826 transitions. [2022-01-18 14:08:17,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:17,525 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:17,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:17,526 INFO L225 Difference]: With dead ends: 360 [2022-01-18 14:08:17,526 INFO L226 Difference]: Without dead ends: 265 [2022-01-18 14:08:17,526 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:17,526 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 44 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:17,526 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 240 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:17,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2022-01-18 14:08:17,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 259. [2022-01-18 14:08:17,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 258 states have (on average 2.244186046511628) internal successors, (579), 258 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:17,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 579 transitions. [2022-01-18 14:08:17,528 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 579 transitions. Word has length 26 [2022-01-18 14:08:17,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:17,528 INFO L470 AbstractCegarLoop]: Abstraction has 259 states and 579 transitions. [2022-01-18 14:08:17,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:17,528 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 579 transitions. [2022-01-18 14:08:17,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:17,529 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:17,529 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:17,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable405 [2022-01-18 14:08:17,529 INFO L402 AbstractCegarLoop]: === Iteration 407 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:17,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:17,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1503974441, now seen corresponding path program 405 times [2022-01-18 14:08:17,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:17,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498929672] [2022-01-18 14:08:17,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:17,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:17,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:17,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:17,588 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:17,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498929672] [2022-01-18 14:08:17,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498929672] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:17,588 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:17,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:17,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610030461] [2022-01-18 14:08:17,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:17,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:17,588 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:17,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:17,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:17,589 INFO L87 Difference]: Start difference. First operand 259 states and 579 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:17,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:17,766 INFO L93 Difference]: Finished difference Result 368 states and 838 transitions. [2022-01-18 14:08:17,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:17,767 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:17,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:17,767 INFO L225 Difference]: With dead ends: 368 [2022-01-18 14:08:17,767 INFO L226 Difference]: Without dead ends: 268 [2022-01-18 14:08:17,767 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:17,767 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 45 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:17,767 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 226 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:17,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2022-01-18 14:08:17,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 257. [2022-01-18 14:08:17,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 256 states have (on average 2.24609375) internal successors, (575), 256 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:17,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 575 transitions. [2022-01-18 14:08:17,769 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 575 transitions. Word has length 26 [2022-01-18 14:08:17,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:17,769 INFO L470 AbstractCegarLoop]: Abstraction has 257 states and 575 transitions. [2022-01-18 14:08:17,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:17,770 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 575 transitions. [2022-01-18 14:08:17,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:17,770 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:17,770 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:17,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable406 [2022-01-18 14:08:17,770 INFO L402 AbstractCegarLoop]: === Iteration 408 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:17,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:17,770 INFO L85 PathProgramCache]: Analyzing trace with hash 378597293, now seen corresponding path program 406 times [2022-01-18 14:08:17,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:17,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267833783] [2022-01-18 14:08:17,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:17,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:17,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:17,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:17,829 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:17,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267833783] [2022-01-18 14:08:17,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267833783] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:17,829 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:17,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:17,829 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955704388] [2022-01-18 14:08:17,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:17,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:17,829 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:17,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:17,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:17,829 INFO L87 Difference]: Start difference. First operand 257 states and 575 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:18,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:18,018 INFO L93 Difference]: Finished difference Result 366 states and 838 transitions. [2022-01-18 14:08:18,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:18,018 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:18,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:18,018 INFO L225 Difference]: With dead ends: 366 [2022-01-18 14:08:18,018 INFO L226 Difference]: Without dead ends: 247 [2022-01-18 14:08:18,019 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:18,019 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 51 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 604 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:18,019 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 267 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 604 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:18,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2022-01-18 14:08:18,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 247. [2022-01-18 14:08:18,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 246 states have (on average 2.247967479674797) internal successors, (553), 246 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:18,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 553 transitions. [2022-01-18 14:08:18,021 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 553 transitions. Word has length 26 [2022-01-18 14:08:18,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:18,021 INFO L470 AbstractCegarLoop]: Abstraction has 247 states and 553 transitions. [2022-01-18 14:08:18,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:18,021 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 553 transitions. [2022-01-18 14:08:18,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:18,021 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:18,021 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:18,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable407 [2022-01-18 14:08:18,022 INFO L402 AbstractCegarLoop]: === Iteration 409 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:18,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:18,022 INFO L85 PathProgramCache]: Analyzing trace with hash 881592293, now seen corresponding path program 407 times [2022-01-18 14:08:18,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:18,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164826555] [2022-01-18 14:08:18,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:18,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:18,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:18,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:18,093 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:18,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164826555] [2022-01-18 14:08:18,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164826555] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:18,093 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:18,093 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:18,093 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139560300] [2022-01-18 14:08:18,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:18,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:18,094 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:18,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:18,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:18,094 INFO L87 Difference]: Start difference. First operand 247 states and 553 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:18,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:18,269 INFO L93 Difference]: Finished difference Result 339 states and 779 transitions. [2022-01-18 14:08:18,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:18,269 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:18,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:18,269 INFO L225 Difference]: With dead ends: 339 [2022-01-18 14:08:18,269 INFO L226 Difference]: Without dead ends: 230 [2022-01-18 14:08:18,269 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:18,269 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 50 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 562 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:18,269 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 245 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 562 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:18,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2022-01-18 14:08:18,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 217. [2022-01-18 14:08:18,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 216 states have (on average 2.2824074074074074) internal successors, (493), 216 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:18,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 493 transitions. [2022-01-18 14:08:18,272 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 493 transitions. Word has length 26 [2022-01-18 14:08:18,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:18,272 INFO L470 AbstractCegarLoop]: Abstraction has 217 states and 493 transitions. [2022-01-18 14:08:18,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:18,272 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 493 transitions. [2022-01-18 14:08:18,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:18,272 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:18,272 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:18,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable408 [2022-01-18 14:08:18,272 INFO L402 AbstractCegarLoop]: === Iteration 410 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:18,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:18,272 INFO L85 PathProgramCache]: Analyzing trace with hash 110431341, now seen corresponding path program 408 times [2022-01-18 14:08:18,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:18,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271742720] [2022-01-18 14:08:18,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:18,273 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:18,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:18,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:18,332 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:18,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271742720] [2022-01-18 14:08:18,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271742720] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:18,332 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:18,332 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:18,332 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142418968] [2022-01-18 14:08:18,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:18,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:18,333 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:18,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:18,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:18,333 INFO L87 Difference]: Start difference. First operand 217 states and 493 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:18,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:18,507 INFO L93 Difference]: Finished difference Result 318 states and 736 transitions. [2022-01-18 14:08:18,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:18,508 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:18,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:18,508 INFO L225 Difference]: With dead ends: 318 [2022-01-18 14:08:18,508 INFO L226 Difference]: Without dead ends: 213 [2022-01-18 14:08:18,508 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:18,508 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 44 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 572 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:18,508 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 243 Invalid, 582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 572 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:18,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2022-01-18 14:08:18,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 213. [2022-01-18 14:08:18,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 212 states have (on average 2.2877358490566038) internal successors, (485), 212 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:18,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 485 transitions. [2022-01-18 14:08:18,510 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 485 transitions. Word has length 26 [2022-01-18 14:08:18,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:18,510 INFO L470 AbstractCegarLoop]: Abstraction has 213 states and 485 transitions. [2022-01-18 14:08:18,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:18,510 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 485 transitions. [2022-01-18 14:08:18,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:18,511 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:18,511 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:18,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable409 [2022-01-18 14:08:18,511 INFO L402 AbstractCegarLoop]: === Iteration 411 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:18,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:18,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1120912531, now seen corresponding path program 409 times [2022-01-18 14:08:18,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:18,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340494359] [2022-01-18 14:08:18,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:18,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:18,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:18,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:18,563 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:18,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340494359] [2022-01-18 14:08:18,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340494359] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:18,563 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:18,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 14:08:18,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205049643] [2022-01-18 14:08:18,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:18,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 14:08:18,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:18,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 14:08:18,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:08:18,564 INFO L87 Difference]: Start difference. First operand 213 states and 485 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:18,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:18,711 INFO L93 Difference]: Finished difference Result 318 states and 737 transitions. [2022-01-18 14:08:18,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 14:08:18,711 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:18,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:18,711 INFO L225 Difference]: With dead ends: 318 [2022-01-18 14:08:18,712 INFO L226 Difference]: Without dead ends: 215 [2022-01-18 14:08:18,712 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 14:08:18,712 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 43 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:18,712 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 200 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 14:08:18,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2022-01-18 14:08:18,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2022-01-18 14:08:18,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 214 states have (on average 2.2757009345794392) internal successors, (487), 214 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:18,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 487 transitions. [2022-01-18 14:08:18,714 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 487 transitions. Word has length 26 [2022-01-18 14:08:18,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:18,714 INFO L470 AbstractCegarLoop]: Abstraction has 215 states and 487 transitions. [2022-01-18 14:08:18,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:18,714 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 487 transitions. [2022-01-18 14:08:18,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:18,714 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:18,714 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:18,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable410 [2022-01-18 14:08:18,714 INFO L402 AbstractCegarLoop]: === Iteration 412 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:18,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:18,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1622849487, now seen corresponding path program 410 times [2022-01-18 14:08:18,715 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:18,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979573978] [2022-01-18 14:08:18,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:18,715 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:18,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:18,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:18,776 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:18,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979573978] [2022-01-18 14:08:18,776 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979573978] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:18,776 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:18,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:18,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471715838] [2022-01-18 14:08:18,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:18,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:18,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:18,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:18,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:18,777 INFO L87 Difference]: Start difference. First operand 215 states and 487 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:18,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:18,953 INFO L93 Difference]: Finished difference Result 325 states and 750 transitions. [2022-01-18 14:08:18,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:18,953 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:18,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:18,954 INFO L225 Difference]: With dead ends: 325 [2022-01-18 14:08:18,954 INFO L226 Difference]: Without dead ends: 227 [2022-01-18 14:08:18,954 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:18,954 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 45 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:18,954 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 239 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 586 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:18,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2022-01-18 14:08:18,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 220. [2022-01-18 14:08:18,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 219 states have (on average 2.278538812785388) internal successors, (499), 219 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:18,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 499 transitions. [2022-01-18 14:08:18,956 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 499 transitions. Word has length 26 [2022-01-18 14:08:18,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:18,956 INFO L470 AbstractCegarLoop]: Abstraction has 220 states and 499 transitions. [2022-01-18 14:08:18,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:18,956 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 499 transitions. [2022-01-18 14:08:18,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:18,956 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:18,956 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:18,956 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable411 [2022-01-18 14:08:18,957 INFO L402 AbstractCegarLoop]: === Iteration 413 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:18,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:18,957 INFO L85 PathProgramCache]: Analyzing trace with hash 230704941, now seen corresponding path program 411 times [2022-01-18 14:08:18,957 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:18,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8237480] [2022-01-18 14:08:18,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:18,957 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:18,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:19,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:19,016 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:19,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8237480] [2022-01-18 14:08:19,016 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8237480] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:19,016 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:19,016 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:19,016 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192733675] [2022-01-18 14:08:19,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:19,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:19,016 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:19,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:19,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:19,016 INFO L87 Difference]: Start difference. First operand 220 states and 499 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:19,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:19,189 INFO L93 Difference]: Finished difference Result 331 states and 761 transitions. [2022-01-18 14:08:19,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:19,189 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:19,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:19,190 INFO L225 Difference]: With dead ends: 331 [2022-01-18 14:08:19,190 INFO L226 Difference]: Without dead ends: 220 [2022-01-18 14:08:19,190 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:19,190 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 46 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:19,190 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 223 Invalid, 577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:19,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-01-18 14:08:19,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 218. [2022-01-18 14:08:19,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 217 states have (on average 2.2672811059907834) internal successors, (492), 217 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:19,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 492 transitions. [2022-01-18 14:08:19,192 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 492 transitions. Word has length 26 [2022-01-18 14:08:19,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:19,192 INFO L470 AbstractCegarLoop]: Abstraction has 218 states and 492 transitions. [2022-01-18 14:08:19,192 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:19,192 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 492 transitions. [2022-01-18 14:08:19,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:19,192 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:19,192 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:19,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable412 [2022-01-18 14:08:19,192 INFO L402 AbstractCegarLoop]: === Iteration 414 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:19,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:19,193 INFO L85 PathProgramCache]: Analyzing trace with hash 562071397, now seen corresponding path program 412 times [2022-01-18 14:08:19,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:19,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084460754] [2022-01-18 14:08:19,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:19,193 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:19,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:19,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:19,251 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:19,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084460754] [2022-01-18 14:08:19,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084460754] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:19,251 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:19,251 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:19,251 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100185141] [2022-01-18 14:08:19,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:19,251 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:19,251 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:19,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:19,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:19,252 INFO L87 Difference]: Start difference. First operand 218 states and 492 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:19,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:19,423 INFO L93 Difference]: Finished difference Result 313 states and 725 transitions. [2022-01-18 14:08:19,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:19,423 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:19,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:19,423 INFO L225 Difference]: With dead ends: 313 [2022-01-18 14:08:19,424 INFO L226 Difference]: Without dead ends: 199 [2022-01-18 14:08:19,424 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:19,424 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 51 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 565 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:19,424 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 249 Invalid, 574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 565 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:19,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2022-01-18 14:08:19,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 196. [2022-01-18 14:08:19,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 195 states have (on average 2.312820512820513) internal successors, (451), 195 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:19,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 451 transitions. [2022-01-18 14:08:19,426 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 451 transitions. Word has length 26 [2022-01-18 14:08:19,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:19,426 INFO L470 AbstractCegarLoop]: Abstraction has 196 states and 451 transitions. [2022-01-18 14:08:19,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:19,426 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 451 transitions. [2022-01-18 14:08:19,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:19,426 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:19,426 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:19,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable413 [2022-01-18 14:08:19,426 INFO L402 AbstractCegarLoop]: === Iteration 415 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:19,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:19,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1658405387, now seen corresponding path program 413 times [2022-01-18 14:08:19,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:19,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304032511] [2022-01-18 14:08:19,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:19,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:19,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:19,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:19,485 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:19,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304032511] [2022-01-18 14:08:19,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304032511] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:19,486 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:19,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:19,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577294033] [2022-01-18 14:08:19,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:19,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:19,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:19,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:19,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:19,486 INFO L87 Difference]: Start difference. First operand 196 states and 451 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:19,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:19,651 INFO L93 Difference]: Finished difference Result 296 states and 693 transitions. [2022-01-18 14:08:19,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:19,652 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:19,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:19,652 INFO L225 Difference]: With dead ends: 296 [2022-01-18 14:08:19,652 INFO L226 Difference]: Without dead ends: 191 [2022-01-18 14:08:19,652 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:19,652 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 45 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:19,652 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 233 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 547 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:19,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2022-01-18 14:08:19,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 191. [2022-01-18 14:08:19,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 190 states have (on average 2.3210526315789473) internal successors, (441), 190 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:19,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 441 transitions. [2022-01-18 14:08:19,654 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 441 transitions. Word has length 26 [2022-01-18 14:08:19,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:19,654 INFO L470 AbstractCegarLoop]: Abstraction has 191 states and 441 transitions. [2022-01-18 14:08:19,654 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:19,654 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 441 transitions. [2022-01-18 14:08:19,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:19,654 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:19,654 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:19,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable414 [2022-01-18 14:08:19,654 INFO L402 AbstractCegarLoop]: === Iteration 416 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:19,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:19,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1085356631, now seen corresponding path program 414 times [2022-01-18 14:08:19,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:19,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483591987] [2022-01-18 14:08:19,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:19,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:19,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:19,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:19,714 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:19,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483591987] [2022-01-18 14:08:19,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483591987] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:19,714 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:19,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:19,714 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301537120] [2022-01-18 14:08:19,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:19,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:19,715 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:19,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:19,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:19,715 INFO L87 Difference]: Start difference. First operand 191 states and 441 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:19,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:19,880 INFO L93 Difference]: Finished difference Result 294 states and 685 transitions. [2022-01-18 14:08:19,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:19,881 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:19,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:19,881 INFO L225 Difference]: With dead ends: 294 [2022-01-18 14:08:19,881 INFO L226 Difference]: Without dead ends: 181 [2022-01-18 14:08:19,881 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:19,881 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 44 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:19,881 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 231 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:19,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2022-01-18 14:08:19,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2022-01-18 14:08:19,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 180 states have (on average 2.3055555555555554) internal successors, (415), 180 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:19,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 415 transitions. [2022-01-18 14:08:19,885 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 415 transitions. Word has length 26 [2022-01-18 14:08:19,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:19,885 INFO L470 AbstractCegarLoop]: Abstraction has 181 states and 415 transitions. [2022-01-18 14:08:19,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:19,885 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 415 transitions. [2022-01-18 14:08:19,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:19,885 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:19,885 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:19,885 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable415 [2022-01-18 14:08:19,885 INFO L402 AbstractCegarLoop]: === Iteration 417 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:19,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:19,886 INFO L85 PathProgramCache]: Analyzing trace with hash -306787915, now seen corresponding path program 415 times [2022-01-18 14:08:19,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:19,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011916216] [2022-01-18 14:08:19,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:19,886 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:19,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:19,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:19,967 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:19,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011916216] [2022-01-18 14:08:19,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011916216] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:19,967 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:19,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:19,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931651832] [2022-01-18 14:08:19,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:19,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:19,967 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:19,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:19,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:19,968 INFO L87 Difference]: Start difference. First operand 181 states and 415 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:20,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:20,127 INFO L93 Difference]: Finished difference Result 282 states and 659 transitions. [2022-01-18 14:08:20,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:20,128 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:20,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:20,128 INFO L225 Difference]: With dead ends: 282 [2022-01-18 14:08:20,128 INFO L226 Difference]: Without dead ends: 179 [2022-01-18 14:08:20,128 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:20,128 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 45 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:20,128 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 229 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 14:08:20,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2022-01-18 14:08:20,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2022-01-18 14:08:20,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 178 states have (on average 2.308988764044944) internal successors, (411), 178 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:20,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 411 transitions. [2022-01-18 14:08:20,130 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 411 transitions. Word has length 26 [2022-01-18 14:08:20,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:20,130 INFO L470 AbstractCegarLoop]: Abstraction has 179 states and 411 transitions. [2022-01-18 14:08:20,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:20,130 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 411 transitions. [2022-01-18 14:08:20,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-18 14:08:20,130 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:08:20,130 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:08:20,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable416 [2022-01-18 14:08:20,130 INFO L402 AbstractCegarLoop]: === Iteration 418 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:08:20,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:08:20,131 INFO L85 PathProgramCache]: Analyzing trace with hash 2078778819, now seen corresponding path program 416 times [2022-01-18 14:08:20,131 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:08:20,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957498244] [2022-01-18 14:08:20,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:08:20,131 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:08:20,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:08:20,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:08:20,199 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:08:20,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957498244] [2022-01-18 14:08:20,199 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957498244] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:08:20,199 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:08:20,199 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 14:08:20,199 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179928041] [2022-01-18 14:08:20,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:08:20,200 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 14:08:20,200 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:08:20,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 14:08:20,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:20,200 INFO L87 Difference]: Start difference. First operand 179 states and 411 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:20,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:08:20,333 INFO L93 Difference]: Finished difference Result 178 states and 410 transitions. [2022-01-18 14:08:20,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 14:08:20,333 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-18 14:08:20,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:08:20,333 INFO L225 Difference]: With dead ends: 178 [2022-01-18 14:08:20,333 INFO L226 Difference]: Without dead ends: 0 [2022-01-18 14:08:20,333 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-18 14:08:20,333 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 50 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 14:08:20,333 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 235 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 14:08:20,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-18 14:08:20,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-18 14:08:20,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:20,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-18 14:08:20,334 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2022-01-18 14:08:20,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:08:20,334 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-18 14:08:20,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 14:08:20,334 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-18 14:08:20,334 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-18 14:08:20,336 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (4 of 5 remaining) [2022-01-18 14:08:20,337 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2022-01-18 14:08:20,337 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2022-01-18 14:08:20,337 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2022-01-18 14:08:20,337 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2022-01-18 14:08:20,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable417 [2022-01-18 14:08:20,340 INFO L732 BasicCegarLoop]: Path program histogram: [416, 1, 1] [2022-01-18 14:08:20,341 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-18 14:08:20,341 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 14:08:20,342 INFO L202 PluginConnector]: Adding new model sum_invariant.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 02:08:20 BasicIcfg [2022-01-18 14:08:20,342 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 14:08:20,342 INFO L158 Benchmark]: Toolchain (without parser) took 118086.81ms. Allocated memory was 333.4MB in the beginning and 593.5MB in the end (delta: 260.0MB). Free memory was 294.1MB in the beginning and 513.2MB in the end (delta: -219.1MB). Peak memory consumption was 41.8MB. Max. memory is 16.0GB. [2022-01-18 14:08:20,342 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.10ms. Allocated memory is still 333.4MB. Free memory is still 295.0MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 14:08:20,342 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.12ms. Allocated memory is still 333.4MB. Free memory was 294.1MB in the beginning and 292.5MB in the end (delta: 1.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2022-01-18 14:08:20,342 INFO L158 Benchmark]: Boogie Preprocessor took 10.55ms. Allocated memory is still 333.4MB. Free memory was 292.5MB in the beginning and 291.6MB in the end (delta: 894.4kB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 14:08:20,343 INFO L158 Benchmark]: RCFGBuilder took 145.09ms. Allocated memory is still 333.4MB. Free memory was 291.6MB in the beginning and 283.8MB in the end (delta: 7.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.0GB. [2022-01-18 14:08:20,343 INFO L158 Benchmark]: TraceAbstraction took 117908.61ms. Allocated memory was 333.4MB in the beginning and 593.5MB in the end (delta: 260.0MB). Free memory was 283.3MB in the beginning and 513.2MB in the end (delta: -229.8MB). Peak memory consumption was 29.3MB. Max. memory is 16.0GB. [2022-01-18 14:08:20,343 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.10ms. Allocated memory is still 333.4MB. Free memory is still 295.0MB. There was no memory consumed. Max. memory is 16.0GB. * Boogie Procedure Inliner took 18.12ms. Allocated memory is still 333.4MB. Free memory was 294.1MB in the beginning and 292.5MB in the end (delta: 1.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 10.55ms. Allocated memory is still 333.4MB. Free memory was 292.5MB in the beginning and 291.6MB in the end (delta: 894.4kB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 145.09ms. Allocated memory is still 333.4MB. Free memory was 291.6MB in the beginning and 283.8MB in the end (delta: 7.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.0GB. * TraceAbstraction took 117908.61ms. Allocated memory was 333.4MB in the beginning and 593.5MB in the end (delta: 260.0MB). Free memory was 283.3MB in the beginning and 513.2MB in the end (delta: -229.8MB). Peak memory consumption was 29.3MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 45]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 6 procedures, 42 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 117.8s, OverallIterations: 418, TraceHistogramMax: 1, PathProgramHistogramMax: 416, EmptinessCheckTime: 0.6s, AutomataDifference: 85.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21622 SdHoareTripleChecker+Valid, 80.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21622 mSDsluCounter, 102830 SdHoareTripleChecker+Invalid, 65.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 185475 mSDsCounter, 3871 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 265493 IncrementalHoareTripleChecker+Invalid, 269364 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3871 mSolverCounterUnsat, 17484 mSDtfsCounter, 265493 mSolverCounterSat, 0.6s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3750 GetRequests, 109 SyntacticMatches, 416 SemanticMatches, 3225 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1624occurred in iteration=103, InterpolantAutomatonStates: 4061, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 5.0s AutomataMinimizationTime, 418 MinimizatonAttempts, 33805 StatesRemovedByMinimization, 402 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 25.3s InterpolantComputationTime, 10868 NumberOfCodeBlocks, 10868 NumberOfCodeBlocksAsserted, 418 NumberOfCheckSat, 10450 ConstructedInterpolants, 0 QuantifiedInterpolants, 86326 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 418 InterpolantComputations, 418 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-01-18 14:08:20,366 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...