/usr/bin/java -Xmx8000000000 -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.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/sum_invariant.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-15 15:22:47,658 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-15 15:22:47,660 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-15 15:22:47,705 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-15 15:22:47,743 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.epf [2022-03-15 15:22:47,779 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-15 15:22:47,779 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-15 15:22:47,780 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-15 15:22:47,780 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-15 15:22:47,780 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-15 15:22:47,781 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-15 15:22:47,781 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-15 15:22:47,781 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-15 15:22:47,781 INFO L138 SettingsManager]: * Use SBE=true [2022-03-15 15:22:47,781 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-15 15:22:47,782 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-15 15:22:47,782 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-15 15:22:47,782 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-15 15:22:47,783 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-15 15:22:47,783 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-15 15:22:47,783 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-15 15:22:47,783 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-15 15:22:47,783 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-15 15:22:47,783 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-15 15:22:47,783 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-15 15:22:47,783 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-15 15:22:47,784 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-15 15:22:47,784 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-15 15:22:47,784 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-15 15:22:47,785 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-15 15:22:47,785 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 15:22:47,785 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-15 15:22:47,785 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-15 15:22:47,785 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-15 15:22:47,786 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-15 15:22:47,786 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-15 15:22:47,786 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-15 15:22:47,786 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-15 15:22:47,786 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-15 15:22:48,006 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-15 15:22:48,023 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-15 15:22:48,025 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-15 15:22:48,026 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-15 15:22:48,027 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-15 15:22:48,028 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/sum_invariant.bpl [2022-03-15 15:22:48,028 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/sum_invariant.bpl' [2022-03-15 15:22:48,043 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-15 15:22:48,044 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-15 15:22:48,045 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-15 15:22:48,045 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-15 15:22:48,045 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-15 15:22:48,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sum_invariant.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 03:22:48" (1/1) ... [2022-03-15 15:22:48,061 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sum_invariant.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 03:22:48" (1/1) ... [2022-03-15 15:22:48,070 INFO L137 Inliner]: procedures = 2, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-15 15:22:48,071 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-15 15:22:48,072 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-15 15:22:48,072 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-15 15:22:48,072 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-15 15:22:48,079 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum_invariant.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 03:22:48" (1/1) ... [2022-03-15 15:22:48,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum_invariant.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 03:22:48" (1/1) ... [2022-03-15 15:22:48,079 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum_invariant.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 03:22:48" (1/1) ... [2022-03-15 15:22:48,079 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum_invariant.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 03:22:48" (1/1) ... [2022-03-15 15:22:48,081 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum_invariant.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 03:22:48" (1/1) ... [2022-03-15 15:22:48,081 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum_invariant.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 03:22:48" (1/1) ... [2022-03-15 15:22:48,082 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum_invariant.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 03:22:48" (1/1) ... [2022-03-15 15:22:48,084 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-15 15:22:48,085 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-15 15:22:48,085 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-15 15:22:48,085 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-15 15:22:48,086 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum_invariant.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 03:22:48" (1/1) ... [2022-03-15 15:22:48,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 15:22:48,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 15:22:48,107 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) [2022-03-15 15:22:48,129 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 [2022-03-15 15:22:48,146 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-15 15:22:48,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-15 15:22:48,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-15 15:22:48,146 INFO L124 BoogieDeclarations]: Specification and implementation of procedure Thread given in one single declaration [2022-03-15 15:22:48,147 INFO L130 BoogieDeclarations]: Found specification of procedure Thread [2022-03-15 15:22:48,147 INFO L138 BoogieDeclarations]: Found implementation of procedure Thread [2022-03-15 15:22:48,147 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-15 15:22:48,178 INFO L234 CfgBuilder]: Building ICFG [2022-03-15 15:22:48,179 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-15 15:22:48,248 INFO L275 CfgBuilder]: Performing block encoding [2022-03-15 15:22:48,254 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-15 15:22:48,255 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-15 15:22:48,257 INFO L202 PluginConnector]: Adding new model sum_invariant.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 03:22:48 BoogieIcfgContainer [2022-03-15 15:22:48,257 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-15 15:22:48,260 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-15 15:22:48,260 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-15 15:22:48,263 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-15 15:22:48,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum_invariant.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 03:22:48" (1/2) ... [2022-03-15 15:22:48,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62703001 and model type sum_invariant.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 03:22:48, skipping insertion in model container [2022-03-15 15:22:48,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum_invariant.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 03:22:48" (2/2) ... [2022-03-15 15:22:48,266 INFO L111 eAbstractionObserver]: Analyzing ICFG sum_invariant.bpl [2022-03-15 15:22:48,273 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-15 15:22:48,274 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-15 15:22:48,274 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-15 15:22:48,275 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-15 15:22:48,302 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:22:48,303 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:22:48,303 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:22:48,304 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:22:48,305 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:22:48,306 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:22:48,308 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:22:48,308 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:22:48,309 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:22:48,309 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:22:48,310 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:22:48,311 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:22:48,312 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:22:48,313 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:22:48,314 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:22:48,314 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:22:48,316 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:22:48,318 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:22:48,321 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:22:48,321 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:22:48,321 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:22:48,322 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:22:48,322 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:22:48,322 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:22:48,327 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:22:48,329 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:22:48,330 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:22:48,331 WARN L322 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:22:48,341 INFO L148 ThreadInstanceAdder]: Constructed 16 joinOtherThreadTransitions. [2022-03-15 15:22:48,394 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 15:22:48,416 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, mLazyFiniteAutomaton=false, 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, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-15 15:22:48,416 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-03-15 15:22:48,427 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 45 places, 44 transitions, 156 flow [2022-03-15 15:22:48,555 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) [2022-03-15 15:22:48,560 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) [2022-03-15 15:22:48,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:22:48,580 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:22:48,581 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] [2022-03-15 15:22:48,581 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:22:48,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:22:48,586 INFO L85 PathProgramCache]: Analyzing trace with hash 121526397, now seen corresponding path program 1 times [2022-03-15 15:22:48,593 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:22:48,593 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67158108] [2022-03-15 15:22:48,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:22:48,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:22:48,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:22:48,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:22:48,738 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:22:48,738 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67158108] [2022-03-15 15:22:48,738 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67158108] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:22:48,739 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:22:48,739 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 15:22:48,740 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096194487] [2022-03-15 15:22:48,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:22:48,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 15:22:48,745 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:22:48,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 15:22:48,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 15:22:48,778 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) [2022-03-15 15:22:48,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:22:48,870 INFO L93 Difference]: Finished difference Result 1329 states and 4322 transitions. [2022-03-15 15:22:48,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 15:22:48,872 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 [2022-03-15 15:22:48,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:22:48,901 INFO L225 Difference]: With dead ends: 1329 [2022-03-15 15:22:48,901 INFO L226 Difference]: Without dead ends: 1329 [2022-03-15 15:22:48,903 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 [2022-03-15 15:22:48,906 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 [2022-03-15 15:22:48,907 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] [2022-03-15 15:22:48,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1329 states. [2022-03-15 15:22:49,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1329 to 1329. [2022-03-15 15:22:49,109 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) [2022-03-15 15:22:49,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1329 states to 1329 states and 4322 transitions. [2022-03-15 15:22:49,122 INFO L78 Accepts]: Start accepts. Automaton has 1329 states and 4322 transitions. Word has length 26 [2022-03-15 15:22:49,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:22:49,123 INFO L470 AbstractCegarLoop]: Abstraction has 1329 states and 4322 transitions. [2022-03-15 15:22:49,123 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) [2022-03-15 15:22:49,123 INFO L276 IsEmpty]: Start isEmpty. Operand 1329 states and 4322 transitions. [2022-03-15 15:22:49,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:22:49,127 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:22:49,127 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:22:49,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-15 15:22:49,128 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:22:49,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:22:49,129 INFO L85 PathProgramCache]: Analyzing trace with hash -75910629, now seen corresponding path program 1 times [2022-03-15 15:22:49,129 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:22:49,129 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329928439] [2022-03-15 15:22:49,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:22:49,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:22:49,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:22:49,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:22:49,188 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:22:49,189 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329928439] [2022-03-15 15:22:49,189 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329928439] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:22:49,189 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:22:49,189 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 15:22:49,189 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980835386] [2022-03-15 15:22:49,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:22:49,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 15:22:49,191 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:22:49,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 15:22:49,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 15:22:49,192 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) [2022-03-15 15:22:49,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:22:49,231 INFO L93 Difference]: Finished difference Result 1114 states and 3592 transitions. [2022-03-15 15:22:49,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 15:22:49,232 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 [2022-03-15 15:22:49,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:22:49,240 INFO L225 Difference]: With dead ends: 1114 [2022-03-15 15:22:49,240 INFO L226 Difference]: Without dead ends: 1114 [2022-03-15 15:22:49,243 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 [2022-03-15 15:22:49,244 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 [2022-03-15 15:22:49,245 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] [2022-03-15 15:22:49,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1114 states. [2022-03-15 15:22:49,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1114 to 1114. [2022-03-15 15:22:49,292 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) [2022-03-15 15:22:49,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1114 states to 1114 states and 3592 transitions. [2022-03-15 15:22:49,298 INFO L78 Accepts]: Start accepts. Automaton has 1114 states and 3592 transitions. Word has length 26 [2022-03-15 15:22:49,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:22:49,300 INFO L470 AbstractCegarLoop]: Abstraction has 1114 states and 3592 transitions. [2022-03-15 15:22:49,303 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) [2022-03-15 15:22:49,308 INFO L276 IsEmpty]: Start isEmpty. Operand 1114 states and 3592 transitions. [2022-03-15 15:22:49,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:22:49,312 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:22:49,312 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:22:49,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-15 15:22:49,313 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:22:49,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:22:49,314 INFO L85 PathProgramCache]: Analyzing trace with hash -65705739, now seen corresponding path program 1 times [2022-03-15 15:22:49,314 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:22:49,314 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619053792] [2022-03-15 15:22:49,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:22:49,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:22:49,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:22:49,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:22:49,504 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:22:49,505 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619053792] [2022-03-15 15:22:49,505 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619053792] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:22:49,505 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:22:49,505 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 15:22:49,505 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583425200] [2022-03-15 15:22:49,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:22:49,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-15 15:22:49,507 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:22:49,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-15 15:22:49,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-15 15:22:49,507 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) [2022-03-15 15:22:49,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:22:49,764 INFO L93 Difference]: Finished difference Result 1876 states and 5924 transitions. [2022-03-15 15:22:49,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-15 15:22:49,765 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 [2022-03-15 15:22:49,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:22:49,775 INFO L225 Difference]: With dead ends: 1876 [2022-03-15 15:22:49,775 INFO L226 Difference]: Without dead ends: 1614 [2022-03-15 15:22:49,775 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 [2022-03-15 15:22:49,776 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 51 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:22:49,777 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 149 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:22:49,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1614 states. [2022-03-15 15:22:49,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1614 to 1614. [2022-03-15 15:22:49,817 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) [2022-03-15 15:22:49,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1614 states to 1614 states and 5058 transitions. [2022-03-15 15:22:49,851 INFO L78 Accepts]: Start accepts. Automaton has 1614 states and 5058 transitions. Word has length 26 [2022-03-15 15:22:49,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:22:49,851 INFO L470 AbstractCegarLoop]: Abstraction has 1614 states and 5058 transitions. [2022-03-15 15:22:49,852 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) [2022-03-15 15:22:49,852 INFO L276 IsEmpty]: Start isEmpty. Operand 1614 states and 5058 transitions. [2022-03-15 15:22:49,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:22:49,856 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:22:49,856 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:22:49,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-15 15:22:49,857 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:22:49,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:22:49,857 INFO L85 PathProgramCache]: Analyzing trace with hash 2112992439, now seen corresponding path program 2 times [2022-03-15 15:22:49,857 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:22:49,857 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56701492] [2022-03-15 15:22:49,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:22:49,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:22:49,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:22:49,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:22:49,988 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:22:49,988 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56701492] [2022-03-15 15:22:49,988 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56701492] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:22:49,989 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:22:49,989 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 15:22:49,989 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736276732] [2022-03-15 15:22:49,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:22:49,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 15:22:49,989 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:22:49,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 15:22:49,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-03-15 15:22:49,990 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) [2022-03-15 15:22:50,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:22:50,247 INFO L93 Difference]: Finished difference Result 1887 states and 5832 transitions. [2022-03-15 15:22:50,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-15 15:22:50,248 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 [2022-03-15 15:22:50,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:22:50,257 INFO L225 Difference]: With dead ends: 1887 [2022-03-15 15:22:50,257 INFO L226 Difference]: Without dead ends: 1628 [2022-03-15 15:22:50,257 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 [2022-03-15 15:22:50,258 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 57 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:22:50,258 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] [2022-03-15 15:22:50,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1628 states. [2022-03-15 15:22:50,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1628 to 1508. [2022-03-15 15:22:50,293 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) [2022-03-15 15:22:50,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1508 states to 1508 states and 4726 transitions. [2022-03-15 15:22:50,299 INFO L78 Accepts]: Start accepts. Automaton has 1508 states and 4726 transitions. Word has length 26 [2022-03-15 15:22:50,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:22:50,299 INFO L470 AbstractCegarLoop]: Abstraction has 1508 states and 4726 transitions. [2022-03-15 15:22:50,299 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) [2022-03-15 15:22:50,299 INFO L276 IsEmpty]: Start isEmpty. Operand 1508 states and 4726 transitions. [2022-03-15 15:22:50,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:22:50,303 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:22:50,303 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:22:50,303 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-15 15:22:50,303 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:22:50,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:22:50,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1975769485, now seen corresponding path program 3 times [2022-03-15 15:22:50,304 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:22:50,304 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890071732] [2022-03-15 15:22:50,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:22:50,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:22:50,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:22:50,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:22:50,440 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:22:50,440 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890071732] [2022-03-15 15:22:50,440 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890071732] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:22:50,440 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:22:50,440 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 15:22:50,440 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74737300] [2022-03-15 15:22:50,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:22:50,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 15:22:50,441 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:22:50,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 15:22:50,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-03-15 15:22:50,441 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) [2022-03-15 15:22:50,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:22:50,701 INFO L93 Difference]: Finished difference Result 1901 states and 5814 transitions. [2022-03-15 15:22:50,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-15 15:22:50,701 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 [2022-03-15 15:22:50,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:22:50,710 INFO L225 Difference]: With dead ends: 1901 [2022-03-15 15:22:50,710 INFO L226 Difference]: Without dead ends: 1646 [2022-03-15 15:22:50,711 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 [2022-03-15 15:22:50,711 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 57 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:22:50,712 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] [2022-03-15 15:22:50,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2022-03-15 15:22:50,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 1458. [2022-03-15 15:22:50,744 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) [2022-03-15 15:22:50,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1458 states to 1458 states and 4554 transitions. [2022-03-15 15:22:50,749 INFO L78 Accepts]: Start accepts. Automaton has 1458 states and 4554 transitions. Word has length 26 [2022-03-15 15:22:50,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:22:50,749 INFO L470 AbstractCegarLoop]: Abstraction has 1458 states and 4554 transitions. [2022-03-15 15:22:50,749 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) [2022-03-15 15:22:50,749 INFO L276 IsEmpty]: Start isEmpty. Operand 1458 states and 4554 transitions. [2022-03-15 15:22:50,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:22:50,753 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:22:50,753 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] [2022-03-15 15:22:50,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-15 15:22:50,753 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:22:50,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:22:50,754 INFO L85 PathProgramCache]: Analyzing trace with hash 202928693, now seen corresponding path program 4 times [2022-03-15 15:22:50,754 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:22:50,754 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842186652] [2022-03-15 15:22:50,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:22:50,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:22:50,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:22:50,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:22:50,857 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:22:50,857 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842186652] [2022-03-15 15:22:50,857 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842186652] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:22:50,857 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:22:50,858 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:22:50,858 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283697614] [2022-03-15 15:22:50,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:22:50,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:22:50,858 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:22:50,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:22:50,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:22:50,859 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) [2022-03-15 15:22:51,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:22:51,162 INFO L93 Difference]: Finished difference Result 1678 states and 5178 transitions. [2022-03-15 15:22:51,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:22:51,163 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 [2022-03-15 15:22:51,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:22:51,171 INFO L225 Difference]: With dead ends: 1678 [2022-03-15 15:22:51,171 INFO L226 Difference]: Without dead ends: 1484 [2022-03-15 15:22:51,172 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 [2022-03-15 15:22:51,172 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 15:22:51,173 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 247 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 15:22:51,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1484 states. [2022-03-15 15:22:51,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1484 to 1406. [2022-03-15 15:22:51,201 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) [2022-03-15 15:22:51,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1406 states to 1406 states and 4398 transitions. [2022-03-15 15:22:51,205 INFO L78 Accepts]: Start accepts. Automaton has 1406 states and 4398 transitions. Word has length 26 [2022-03-15 15:22:51,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:22:51,206 INFO L470 AbstractCegarLoop]: Abstraction has 1406 states and 4398 transitions. [2022-03-15 15:22:51,206 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) [2022-03-15 15:22:51,206 INFO L276 IsEmpty]: Start isEmpty. Operand 1406 states and 4398 transitions. [2022-03-15 15:22:51,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:22:51,210 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:22:51,210 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:22:51,211 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-15 15:22:51,211 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:22:51,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:22:51,212 INFO L85 PathProgramCache]: Analyzing trace with hash 682573297, now seen corresponding path program 5 times [2022-03-15 15:22:51,212 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:22:51,212 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758028679] [2022-03-15 15:22:51,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:22:51,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:22:51,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:22:51,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:22:51,349 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:22:51,349 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758028679] [2022-03-15 15:22:51,349 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758028679] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:22:51,349 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:22:51,350 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 15:22:51,350 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345219898] [2022-03-15 15:22:51,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:22:51,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 15:22:51,350 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:22:51,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 15:22:51,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-03-15 15:22:51,351 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) [2022-03-15 15:22:51,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:22:51,557 INFO L93 Difference]: Finished difference Result 1788 states and 5480 transitions. [2022-03-15 15:22:51,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-15 15:22:51,557 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 [2022-03-15 15:22:51,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:22:51,566 INFO L225 Difference]: With dead ends: 1788 [2022-03-15 15:22:51,566 INFO L226 Difference]: Without dead ends: 1647 [2022-03-15 15:22:51,566 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 [2022-03-15 15:22:51,566 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 48 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:22:51,567 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] [2022-03-15 15:22:51,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1647 states. [2022-03-15 15:22:51,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1647 to 1463. [2022-03-15 15:22:51,600 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) [2022-03-15 15:22:51,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1463 states to 1463 states and 4576 transitions. [2022-03-15 15:22:51,604 INFO L78 Accepts]: Start accepts. Automaton has 1463 states and 4576 transitions. Word has length 26 [2022-03-15 15:22:51,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:22:51,605 INFO L470 AbstractCegarLoop]: Abstraction has 1463 states and 4576 transitions. [2022-03-15 15:22:51,605 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) [2022-03-15 15:22:51,605 INFO L276 IsEmpty]: Start isEmpty. Operand 1463 states and 4576 transitions. [2022-03-15 15:22:51,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:22:51,608 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:22:51,608 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:22:51,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-15 15:22:51,608 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:22:51,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:22:51,609 INFO L85 PathProgramCache]: Analyzing trace with hash -28751919, now seen corresponding path program 6 times [2022-03-15 15:22:51,610 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:22:51,610 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318922032] [2022-03-15 15:22:51,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:22:51,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:22:51,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:22:51,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:22:51,746 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:22:51,746 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318922032] [2022-03-15 15:22:51,746 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318922032] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:22:51,747 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:22:51,747 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:22:51,747 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69569683] [2022-03-15 15:22:51,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:22:51,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:22:51,747 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:22:51,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:22:51,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:22:51,748 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) [2022-03-15 15:22:52,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:22:52,051 INFO L93 Difference]: Finished difference Result 1778 states and 5460 transitions. [2022-03-15 15:22:52,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:22:52,052 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 [2022-03-15 15:22:52,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:22:52,061 INFO L225 Difference]: With dead ends: 1778 [2022-03-15 15:22:52,061 INFO L226 Difference]: Without dead ends: 1649 [2022-03-15 15:22:52,061 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 [2022-03-15 15:22:52,062 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 15:22:52,062 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 223 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 15:22:52,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1649 states. [2022-03-15 15:22:52,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1649 to 1488. [2022-03-15 15:22:52,102 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) [2022-03-15 15:22:52,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1488 states to 1488 states and 4654 transitions. [2022-03-15 15:22:52,111 INFO L78 Accepts]: Start accepts. Automaton has 1488 states and 4654 transitions. Word has length 26 [2022-03-15 15:22:52,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:22:52,111 INFO L470 AbstractCegarLoop]: Abstraction has 1488 states and 4654 transitions. [2022-03-15 15:22:52,111 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) [2022-03-15 15:22:52,111 INFO L276 IsEmpty]: Start isEmpty. Operand 1488 states and 4654 transitions. [2022-03-15 15:22:52,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:22:52,115 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:22:52,115 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:22:52,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-15 15:22:52,115 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:22:52,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:22:52,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1965052845, now seen corresponding path program 7 times [2022-03-15 15:22:52,116 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:22:52,116 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844673416] [2022-03-15 15:22:52,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:22:52,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:22:52,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:22:52,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:22:52,223 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:22:52,223 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844673416] [2022-03-15 15:22:52,223 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844673416] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:22:52,223 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:22:52,223 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:22:52,223 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008755386] [2022-03-15 15:22:52,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:22:52,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:22:52,224 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:22:52,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:22:52,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:22:52,225 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) [2022-03-15 15:22:52,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:22:52,518 INFO L93 Difference]: Finished difference Result 1806 states and 5565 transitions. [2022-03-15 15:22:52,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:22:52,519 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 [2022-03-15 15:22:52,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:22:52,527 INFO L225 Difference]: With dead ends: 1806 [2022-03-15 15:22:52,527 INFO L226 Difference]: Without dead ends: 1647 [2022-03-15 15:22:52,527 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 [2022-03-15 15:22:52,528 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 15:22:52,528 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 225 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 581 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 15:22:52,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1647 states. [2022-03-15 15:22:52,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1647 to 1509. [2022-03-15 15:22:52,559 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) [2022-03-15 15:22:52,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1509 states to 1509 states and 4715 transitions. [2022-03-15 15:22:52,564 INFO L78 Accepts]: Start accepts. Automaton has 1509 states and 4715 transitions. Word has length 26 [2022-03-15 15:22:52,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:22:52,564 INFO L470 AbstractCegarLoop]: Abstraction has 1509 states and 4715 transitions. [2022-03-15 15:22:52,564 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) [2022-03-15 15:22:52,565 INFO L276 IsEmpty]: Start isEmpty. Operand 1509 states and 4715 transitions. [2022-03-15 15:22:52,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:22:52,568 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:22:52,568 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:22:52,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-15 15:22:52,568 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:22:52,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:22:52,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1597680461, now seen corresponding path program 8 times [2022-03-15 15:22:52,569 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:22:52,569 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570772520] [2022-03-15 15:22:52,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:22:52,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:22:52,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:22:52,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:22:52,657 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:22:52,657 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570772520] [2022-03-15 15:22:52,657 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570772520] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:22:52,658 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:22:52,658 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:22:52,658 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496606063] [2022-03-15 15:22:52,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:22:52,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:22:52,658 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:22:52,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:22:52,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:22:52,659 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) [2022-03-15 15:22:52,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:22:52,914 INFO L93 Difference]: Finished difference Result 1852 states and 5672 transitions. [2022-03-15 15:22:52,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:22:52,914 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 [2022-03-15 15:22:52,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:22:52,924 INFO L225 Difference]: With dead ends: 1852 [2022-03-15 15:22:52,924 INFO L226 Difference]: Without dead ends: 1713 [2022-03-15 15:22:52,924 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 [2022-03-15 15:22:52,925 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 50 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:22:52,926 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] [2022-03-15 15:22:52,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1713 states. [2022-03-15 15:22:52,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1713 to 1499. [2022-03-15 15:22:52,958 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) [2022-03-15 15:22:52,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1499 states to 1499 states and 4685 transitions. [2022-03-15 15:22:52,963 INFO L78 Accepts]: Start accepts. Automaton has 1499 states and 4685 transitions. Word has length 26 [2022-03-15 15:22:52,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:22:52,963 INFO L470 AbstractCegarLoop]: Abstraction has 1499 states and 4685 transitions. [2022-03-15 15:22:52,964 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) [2022-03-15 15:22:52,964 INFO L276 IsEmpty]: Start isEmpty. Operand 1499 states and 4685 transitions. [2022-03-15 15:22:52,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:22:52,967 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:22:52,968 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:22:52,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-15 15:22:52,968 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:22:52,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:22:52,968 INFO L85 PathProgramCache]: Analyzing trace with hash -637420907, now seen corresponding path program 9 times [2022-03-15 15:22:52,968 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:22:52,969 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30689036] [2022-03-15 15:22:52,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:22:52,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:22:52,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:22:53,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:22:53,050 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:22:53,050 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30689036] [2022-03-15 15:22:53,050 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30689036] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:22:53,050 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:22:53,050 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 15:22:53,050 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217385664] [2022-03-15 15:22:53,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:22:53,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 15:22:53,051 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:22:53,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 15:22:53,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-03-15 15:22:53,051 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) [2022-03-15 15:22:53,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:22:53,245 INFO L93 Difference]: Finished difference Result 1849 states and 5664 transitions. [2022-03-15 15:22:53,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-15 15:22:53,245 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 [2022-03-15 15:22:53,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:22:53,252 INFO L225 Difference]: With dead ends: 1849 [2022-03-15 15:22:53,253 INFO L226 Difference]: Without dead ends: 1708 [2022-03-15 15:22:53,253 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 [2022-03-15 15:22:53,253 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, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:22:53,254 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] [2022-03-15 15:22:53,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1708 states. [2022-03-15 15:22:53,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1708 to 1525. [2022-03-15 15:22:53,285 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) [2022-03-15 15:22:53,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1525 states to 1525 states and 4765 transitions. [2022-03-15 15:22:53,289 INFO L78 Accepts]: Start accepts. Automaton has 1525 states and 4765 transitions. Word has length 26 [2022-03-15 15:22:53,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:22:53,290 INFO L470 AbstractCegarLoop]: Abstraction has 1525 states and 4765 transitions. [2022-03-15 15:22:53,290 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) [2022-03-15 15:22:53,290 INFO L276 IsEmpty]: Start isEmpty. Operand 1525 states and 4765 transitions. [2022-03-15 15:22:53,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:22:53,294 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:22:53,294 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:22:53,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-15 15:22:53,294 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:22:53,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:22:53,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1721245463, now seen corresponding path program 10 times [2022-03-15 15:22:53,295 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:22:53,295 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909431023] [2022-03-15 15:22:53,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:22:53,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:22:53,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:22:53,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:22:53,390 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:22:53,390 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909431023] [2022-03-15 15:22:53,390 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909431023] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:22:53,390 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:22:53,391 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:22:53,391 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127088426] [2022-03-15 15:22:53,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:22:53,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:22:53,391 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:22:53,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:22:53,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:22:53,392 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) [2022-03-15 15:22:53,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:22:53,658 INFO L93 Difference]: Finished difference Result 1932 states and 5906 transitions. [2022-03-15 15:22:53,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:22:53,659 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 [2022-03-15 15:22:53,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:22:53,665 INFO L225 Difference]: With dead ends: 1932 [2022-03-15 15:22:53,665 INFO L226 Difference]: Without dead ends: 1665 [2022-03-15 15:22:53,665 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 [2022-03-15 15:22:53,666 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 15:22:53,666 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 247 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 545 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 15:22:53,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1665 states. [2022-03-15 15:22:53,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1665 to 1415. [2022-03-15 15:22:53,692 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) [2022-03-15 15:22:53,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1415 states to 1415 states and 4371 transitions. [2022-03-15 15:22:53,697 INFO L78 Accepts]: Start accepts. Automaton has 1415 states and 4371 transitions. Word has length 26 [2022-03-15 15:22:53,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:22:53,697 INFO L470 AbstractCegarLoop]: Abstraction has 1415 states and 4371 transitions. [2022-03-15 15:22:53,697 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) [2022-03-15 15:22:53,697 INFO L276 IsEmpty]: Start isEmpty. Operand 1415 states and 4371 transitions. [2022-03-15 15:22:53,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:22:53,700 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:22:53,700 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] [2022-03-15 15:22:53,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-15 15:22:53,701 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:22:53,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:22:53,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1939805619, now seen corresponding path program 11 times [2022-03-15 15:22:53,701 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:22:53,701 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437070719] [2022-03-15 15:22:53,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:22:53,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:22:53,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:22:53,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:22:53,784 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:22:53,784 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437070719] [2022-03-15 15:22:53,784 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437070719] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:22:53,784 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:22:53,784 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:22:53,785 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429225041] [2022-03-15 15:22:53,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:22:53,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:22:53,785 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:22:53,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:22:53,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:22:53,786 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) [2022-03-15 15:22:54,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:22:54,032 INFO L93 Difference]: Finished difference Result 1661 states and 5048 transitions. [2022-03-15 15:22:54,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:22:54,033 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 [2022-03-15 15:22:54,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:22:54,046 INFO L225 Difference]: With dead ends: 1661 [2022-03-15 15:22:54,046 INFO L226 Difference]: Without dead ends: 1528 [2022-03-15 15:22:54,046 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 [2022-03-15 15:22:54,047 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 50 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:22:54,047 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] [2022-03-15 15:22:54,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1528 states. [2022-03-15 15:22:54,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1528 to 1405. [2022-03-15 15:22:54,071 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) [2022-03-15 15:22:54,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1405 states to 1405 states and 4334 transitions. [2022-03-15 15:22:54,075 INFO L78 Accepts]: Start accepts. Automaton has 1405 states and 4334 transitions. Word has length 26 [2022-03-15 15:22:54,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:22:54,075 INFO L470 AbstractCegarLoop]: Abstraction has 1405 states and 4334 transitions. [2022-03-15 15:22:54,075 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) [2022-03-15 15:22:54,075 INFO L276 IsEmpty]: Start isEmpty. Operand 1405 states and 4334 transitions. [2022-03-15 15:22:54,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:22:54,078 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:22:54,078 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] [2022-03-15 15:22:54,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-15 15:22:54,079 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:22:54,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:22:54,079 INFO L85 PathProgramCache]: Analyzing trace with hash 3504693, now seen corresponding path program 12 times [2022-03-15 15:22:54,079 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:22:54,079 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713940959] [2022-03-15 15:22:54,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:22:54,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:22:54,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:22:54,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:22:54,167 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:22:54,167 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713940959] [2022-03-15 15:22:54,167 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713940959] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:22:54,167 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:22:54,167 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:22:54,167 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632749618] [2022-03-15 15:22:54,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:22:54,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:22:54,168 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:22:54,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:22:54,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:22:54,168 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) [2022-03-15 15:22:54,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:22:54,439 INFO L93 Difference]: Finished difference Result 1871 states and 5674 transitions. [2022-03-15 15:22:54,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:22:54,440 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 [2022-03-15 15:22:54,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:22:54,446 INFO L225 Difference]: With dead ends: 1871 [2022-03-15 15:22:54,446 INFO L226 Difference]: Without dead ends: 1726 [2022-03-15 15:22:54,446 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 [2022-03-15 15:22:54,447 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 15:22:54,447 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 223 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 578 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 15:22:54,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1726 states. [2022-03-15 15:22:54,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1726 to 1433. [2022-03-15 15:22:54,473 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) [2022-03-15 15:22:54,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1433 states to 1433 states and 4419 transitions. [2022-03-15 15:22:54,476 INFO L78 Accepts]: Start accepts. Automaton has 1433 states and 4419 transitions. Word has length 26 [2022-03-15 15:22:54,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:22:54,477 INFO L470 AbstractCegarLoop]: Abstraction has 1433 states and 4419 transitions. [2022-03-15 15:22:54,477 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) [2022-03-15 15:22:54,477 INFO L276 IsEmpty]: Start isEmpty. Operand 1433 states and 4419 transitions. [2022-03-15 15:22:54,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:22:54,480 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:22:54,480 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:22:54,480 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-15 15:22:54,480 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:22:54,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:22:54,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1298986211, now seen corresponding path program 13 times [2022-03-15 15:22:54,481 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:22:54,481 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387337004] [2022-03-15 15:22:54,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:22:54,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:22:54,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:22:54,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:22:54,566 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:22:54,566 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387337004] [2022-03-15 15:22:54,566 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387337004] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:22:54,567 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:22:54,567 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:22:54,567 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097142676] [2022-03-15 15:22:54,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:22:54,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:22:54,567 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:22:54,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:22:54,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:22:54,568 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) [2022-03-15 15:22:54,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:22:54,815 INFO L93 Difference]: Finished difference Result 1746 states and 5285 transitions. [2022-03-15 15:22:54,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:22:54,815 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 [2022-03-15 15:22:54,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:22:54,821 INFO L225 Difference]: With dead ends: 1746 [2022-03-15 15:22:54,821 INFO L226 Difference]: Without dead ends: 1561 [2022-03-15 15:22:54,821 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 [2022-03-15 15:22:54,822 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 [2022-03-15 15:22:54,822 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] [2022-03-15 15:22:54,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1561 states. [2022-03-15 15:22:54,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1561 to 1389. [2022-03-15 15:22:54,846 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) [2022-03-15 15:22:54,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1389 states to 1389 states and 4285 transitions. [2022-03-15 15:22:54,850 INFO L78 Accepts]: Start accepts. Automaton has 1389 states and 4285 transitions. Word has length 26 [2022-03-15 15:22:54,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:22:54,850 INFO L470 AbstractCegarLoop]: Abstraction has 1389 states and 4285 transitions. [2022-03-15 15:22:54,850 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) [2022-03-15 15:22:54,850 INFO L276 IsEmpty]: Start isEmpty. Operand 1389 states and 4285 transitions. [2022-03-15 15:22:54,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:22:54,853 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:22:54,853 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:22:54,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-15 15:22:54,853 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:22:54,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:22:54,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1870208439, now seen corresponding path program 14 times [2022-03-15 15:22:54,854 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:22:54,854 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507585323] [2022-03-15 15:22:54,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:22:54,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:22:54,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:22:54,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:22:54,940 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:22:54,940 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507585323] [2022-03-15 15:22:54,942 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507585323] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:22:54,942 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:22:54,942 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:22:54,942 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388097356] [2022-03-15 15:22:54,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:22:54,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:22:54,943 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:22:54,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:22:54,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:22:54,943 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) [2022-03-15 15:22:55,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:22:55,178 INFO L93 Difference]: Finished difference Result 1686 states and 5109 transitions. [2022-03-15 15:22:55,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:22:55,179 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 [2022-03-15 15:22:55,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:22:55,183 INFO L225 Difference]: With dead ends: 1686 [2022-03-15 15:22:55,184 INFO L226 Difference]: Without dead ends: 1511 [2022-03-15 15:22:55,184 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 [2022-03-15 15:22:55,184 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 [2022-03-15 15:22:55,185 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] [2022-03-15 15:22:55,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1511 states. [2022-03-15 15:22:55,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1511 to 1339. [2022-03-15 15:22:55,210 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) [2022-03-15 15:22:55,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1339 states to 1339 states and 4135 transitions. [2022-03-15 15:22:55,213 INFO L78 Accepts]: Start accepts. Automaton has 1339 states and 4135 transitions. Word has length 26 [2022-03-15 15:22:55,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:22:55,213 INFO L470 AbstractCegarLoop]: Abstraction has 1339 states and 4135 transitions. [2022-03-15 15:22:55,213 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) [2022-03-15 15:22:55,214 INFO L276 IsEmpty]: Start isEmpty. Operand 1339 states and 4135 transitions. [2022-03-15 15:22:55,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:22:55,217 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:22:55,217 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] [2022-03-15 15:22:55,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-15 15:22:55,217 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:22:55,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:22:55,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1158883223, now seen corresponding path program 15 times [2022-03-15 15:22:55,217 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:22:55,218 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781900874] [2022-03-15 15:22:55,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:22:55,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:22:55,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:22:55,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:22:55,298 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:22:55,298 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781900874] [2022-03-15 15:22:55,298 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781900874] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:22:55,298 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:22:55,298 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:22:55,298 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380174219] [2022-03-15 15:22:55,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:22:55,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:22:55,299 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:22:55,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:22:55,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:22:55,299 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) [2022-03-15 15:22:55,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:22:55,547 INFO L93 Difference]: Finished difference Result 1627 states and 4941 transitions. [2022-03-15 15:22:55,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:22:55,548 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 [2022-03-15 15:22:55,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:22:55,553 INFO L225 Difference]: With dead ends: 1627 [2022-03-15 15:22:55,553 INFO L226 Difference]: Without dead ends: 1462 [2022-03-15 15:22:55,553 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 [2022-03-15 15:22:55,553 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 54 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 569 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:22:55,554 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] [2022-03-15 15:22:55,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1462 states. [2022-03-15 15:22:55,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1462 to 1322. [2022-03-15 15:22:55,588 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) [2022-03-15 15:22:55,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1322 states to 1322 states and 4086 transitions. [2022-03-15 15:22:55,592 INFO L78 Accepts]: Start accepts. Automaton has 1322 states and 4086 transitions. Word has length 26 [2022-03-15 15:22:55,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:22:55,593 INFO L470 AbstractCegarLoop]: Abstraction has 1322 states and 4086 transitions. [2022-03-15 15:22:55,593 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) [2022-03-15 15:22:55,593 INFO L276 IsEmpty]: Start isEmpty. Operand 1322 states and 4086 transitions. [2022-03-15 15:22:55,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:22:55,596 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:22:55,596 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:22:55,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-15 15:22:55,596 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:22:55,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:22:55,597 INFO L85 PathProgramCache]: Analyzing trace with hash -410045319, now seen corresponding path program 16 times [2022-03-15 15:22:55,597 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:22:55,597 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39753907] [2022-03-15 15:22:55,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:22:55,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:22:55,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:22:55,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:22:55,676 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:22:55,676 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39753907] [2022-03-15 15:22:55,676 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39753907] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:22:55,676 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:22:55,676 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:22:55,676 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754582622] [2022-03-15 15:22:55,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:22:55,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:22:55,677 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:22:55,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:22:55,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:22:55,678 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) [2022-03-15 15:22:55,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:22:55,900 INFO L93 Difference]: Finished difference Result 1728 states and 5256 transitions. [2022-03-15 15:22:55,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:22:55,900 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 [2022-03-15 15:22:55,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:22:55,905 INFO L225 Difference]: With dead ends: 1728 [2022-03-15 15:22:55,905 INFO L226 Difference]: Without dead ends: 1573 [2022-03-15 15:22:55,905 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 [2022-03-15 15:22:55,906 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 [2022-03-15 15:22:55,906 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] [2022-03-15 15:22:55,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1573 states. [2022-03-15 15:22:55,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1573 to 1301. [2022-03-15 15:22:55,929 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) [2022-03-15 15:22:55,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1301 states to 1301 states and 4021 transitions. [2022-03-15 15:22:55,933 INFO L78 Accepts]: Start accepts. Automaton has 1301 states and 4021 transitions. Word has length 26 [2022-03-15 15:22:55,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:22:55,933 INFO L470 AbstractCegarLoop]: Abstraction has 1301 states and 4021 transitions. [2022-03-15 15:22:55,933 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) [2022-03-15 15:22:55,933 INFO L276 IsEmpty]: Start isEmpty. Operand 1301 states and 4021 transitions. [2022-03-15 15:22:55,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:22:55,936 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:22:55,936 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:22:55,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-15 15:22:55,936 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:22:55,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:22:55,936 INFO L85 PathProgramCache]: Analyzing trace with hash -980053157, now seen corresponding path program 17 times [2022-03-15 15:22:55,936 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:22:55,937 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468022479] [2022-03-15 15:22:55,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:22:55,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:22:55,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:22:56,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:22:56,022 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:22:56,022 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468022479] [2022-03-15 15:22:56,022 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468022479] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:22:56,022 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:22:56,022 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:22:56,022 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144104175] [2022-03-15 15:22:56,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:22:56,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:22:56,023 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:22:56,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:22:56,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:22:56,024 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) [2022-03-15 15:22:56,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:22:56,280 INFO L93 Difference]: Finished difference Result 1527 states and 4646 transitions. [2022-03-15 15:22:56,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:22:56,280 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 [2022-03-15 15:22:56,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:22:56,283 INFO L225 Difference]: With dead ends: 1527 [2022-03-15 15:22:56,283 INFO L226 Difference]: Without dead ends: 1316 [2022-03-15 15:22:56,284 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 [2022-03-15 15:22:56,284 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 [2022-03-15 15:22:56,284 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] [2022-03-15 15:22:56,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1316 states. [2022-03-15 15:22:56,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1316 to 1138. [2022-03-15 15:22:56,304 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) [2022-03-15 15:22:56,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1138 states to 1138 states and 3549 transitions. [2022-03-15 15:22:56,307 INFO L78 Accepts]: Start accepts. Automaton has 1138 states and 3549 transitions. Word has length 26 [2022-03-15 15:22:56,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:22:56,307 INFO L470 AbstractCegarLoop]: Abstraction has 1138 states and 3549 transitions. [2022-03-15 15:22:56,307 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) [2022-03-15 15:22:56,307 INFO L276 IsEmpty]: Start isEmpty. Operand 1138 states and 3549 transitions. [2022-03-15 15:22:56,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:22:56,309 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:22:56,309 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:22:56,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-15 15:22:56,310 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:22:56,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:22:56,310 INFO L85 PathProgramCache]: Analyzing trace with hash -198491113, now seen corresponding path program 18 times [2022-03-15 15:22:56,310 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:22:56,310 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355910482] [2022-03-15 15:22:56,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:22:56,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:22:56,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:22:56,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:22:56,379 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:22:56,379 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355910482] [2022-03-15 15:22:56,379 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355910482] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:22:56,379 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:22:56,379 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 15:22:56,379 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849734724] [2022-03-15 15:22:56,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:22:56,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 15:22:56,380 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:22:56,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 15:22:56,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-03-15 15:22:56,380 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) [2022-03-15 15:22:56,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:22:56,582 INFO L93 Difference]: Finished difference Result 1698 states and 5175 transitions. [2022-03-15 15:22:56,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-15 15:22:56,583 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 [2022-03-15 15:22:56,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:22:56,588 INFO L225 Difference]: With dead ends: 1698 [2022-03-15 15:22:56,588 INFO L226 Difference]: Without dead ends: 1446 [2022-03-15 15:22:56,588 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 [2022-03-15 15:22:56,589 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 58 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:22:56,589 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 194 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:22:56,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1446 states. [2022-03-15 15:22:56,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1446 to 1252. [2022-03-15 15:22:56,610 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) [2022-03-15 15:22:56,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1252 states to 1252 states and 3852 transitions. [2022-03-15 15:22:56,616 INFO L78 Accepts]: Start accepts. Automaton has 1252 states and 3852 transitions. Word has length 26 [2022-03-15 15:22:56,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:22:56,617 INFO L470 AbstractCegarLoop]: Abstraction has 1252 states and 3852 transitions. [2022-03-15 15:22:56,617 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) [2022-03-15 15:22:56,618 INFO L276 IsEmpty]: Start isEmpty. Operand 1252 states and 3852 transitions. [2022-03-15 15:22:56,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:22:56,620 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:22:56,620 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:22:56,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-15 15:22:56,620 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:22:56,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:22:56,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1980207065, now seen corresponding path program 19 times [2022-03-15 15:22:56,621 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:22:56,621 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335802723] [2022-03-15 15:22:56,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:22:56,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:22:56,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:22:56,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:22:56,708 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:22:56,708 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335802723] [2022-03-15 15:22:56,708 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335802723] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:22:56,708 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:22:56,708 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:22:56,708 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509578384] [2022-03-15 15:22:56,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:22:56,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:22:56,709 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:22:56,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:22:56,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:22:56,710 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) [2022-03-15 15:22:56,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:22:56,929 INFO L93 Difference]: Finished difference Result 1559 states and 4705 transitions. [2022-03-15 15:22:56,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:22:56,930 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 [2022-03-15 15:22:56,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:22:56,933 INFO L225 Difference]: With dead ends: 1559 [2022-03-15 15:22:56,933 INFO L226 Difference]: Without dead ends: 1310 [2022-03-15 15:22:56,933 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 [2022-03-15 15:22:56,934 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 [2022-03-15 15:22:56,934 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] [2022-03-15 15:22:56,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1310 states. [2022-03-15 15:22:56,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1310 to 1106. [2022-03-15 15:22:56,952 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) [2022-03-15 15:22:56,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1106 states to 1106 states and 3413 transitions. [2022-03-15 15:22:56,955 INFO L78 Accepts]: Start accepts. Automaton has 1106 states and 3413 transitions. Word has length 26 [2022-03-15 15:22:56,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:22:56,955 INFO L470 AbstractCegarLoop]: Abstraction has 1106 states and 3413 transitions. [2022-03-15 15:22:56,955 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) [2022-03-15 15:22:56,955 INFO L276 IsEmpty]: Start isEmpty. Operand 1106 states and 3413 transitions. [2022-03-15 15:22:56,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:22:56,957 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:22:56,957 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:22:56,958 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-15 15:22:56,958 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:22:56,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:22:56,958 INFO L85 PathProgramCache]: Analyzing trace with hash -2108554859, now seen corresponding path program 20 times [2022-03-15 15:22:56,958 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:22:56,958 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566736684] [2022-03-15 15:22:56,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:22:56,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:22:56,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:22:57,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:22:57,034 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:22:57,034 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566736684] [2022-03-15 15:22:57,034 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566736684] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:22:57,034 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:22:57,034 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:22:57,034 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787857132] [2022-03-15 15:22:57,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:22:57,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:22:57,034 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:22:57,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:22:57,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:22:57,035 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) [2022-03-15 15:22:57,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:22:57,284 INFO L93 Difference]: Finished difference Result 1455 states and 4380 transitions. [2022-03-15 15:22:57,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:22:57,285 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 [2022-03-15 15:22:57,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:22:57,290 INFO L225 Difference]: With dead ends: 1455 [2022-03-15 15:22:57,290 INFO L226 Difference]: Without dead ends: 1268 [2022-03-15 15:22:57,290 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 [2022-03-15 15:22:57,291 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 64 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:22:57,292 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] [2022-03-15 15:22:57,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1268 states. [2022-03-15 15:22:57,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1268 to 1116. [2022-03-15 15:22:57,314 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) [2022-03-15 15:22:57,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 3431 transitions. [2022-03-15 15:22:57,317 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 3431 transitions. Word has length 26 [2022-03-15 15:22:57,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:22:57,317 INFO L470 AbstractCegarLoop]: Abstraction has 1116 states and 3431 transitions. [2022-03-15 15:22:57,317 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) [2022-03-15 15:22:57,317 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 3431 transitions. [2022-03-15 15:22:57,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:22:57,319 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:22:57,319 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] [2022-03-15 15:22:57,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-15 15:22:57,320 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:22:57,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:22:57,320 INFO L85 PathProgramCache]: Analyzing trace with hash 70143319, now seen corresponding path program 21 times [2022-03-15 15:22:57,320 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:22:57,320 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667449935] [2022-03-15 15:22:57,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:22:57,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:22:57,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:22:57,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:22:57,415 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:22:57,415 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667449935] [2022-03-15 15:22:57,415 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667449935] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:22:57,415 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:22:57,415 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:22:57,415 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845579443] [2022-03-15 15:22:57,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:22:57,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:22:57,416 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:22:57,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:22:57,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:22:57,416 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) [2022-03-15 15:22:57,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:22:57,711 INFO L93 Difference]: Finished difference Result 1381 states and 4160 transitions. [2022-03-15 15:22:57,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:22:57,712 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 [2022-03-15 15:22:57,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:22:57,715 INFO L225 Difference]: With dead ends: 1381 [2022-03-15 15:22:57,715 INFO L226 Difference]: Without dead ends: 1226 [2022-03-15 15:22:57,715 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 [2022-03-15 15:22:57,716 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 15:22:57,716 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 303 Invalid, 720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 708 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 15:22:57,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1226 states. [2022-03-15 15:22:57,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1226 to 1090. [2022-03-15 15:22:57,733 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) [2022-03-15 15:22:57,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1090 states to 1090 states and 3365 transitions. [2022-03-15 15:22:57,735 INFO L78 Accepts]: Start accepts. Automaton has 1090 states and 3365 transitions. Word has length 26 [2022-03-15 15:22:57,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:22:57,735 INFO L470 AbstractCegarLoop]: Abstraction has 1090 states and 3365 transitions. [2022-03-15 15:22:57,735 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:22:57,735 INFO L276 IsEmpty]: Start isEmpty. Operand 1090 states and 3365 transitions. [2022-03-15 15:22:57,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:22:57,738 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:22:57,738 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:22:57,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-15 15:22:57,738 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:22:57,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:22:57,738 INFO L85 PathProgramCache]: Analyzing trace with hash 549787923, now seen corresponding path program 22 times [2022-03-15 15:22:57,738 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:22:57,739 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542607527] [2022-03-15 15:22:57,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:22:57,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:22:57,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:22:57,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:22:57,815 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:22:57,815 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542607527] [2022-03-15 15:22:57,815 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542607527] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:22:57,815 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:22:57,815 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:22:57,815 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286479336] [2022-03-15 15:22:57,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:22:57,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:22:57,815 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:22:57,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:22:57,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:22:57,816 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) [2022-03-15 15:22:58,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:22:58,031 INFO L93 Difference]: Finished difference Result 1426 states and 4315 transitions. [2022-03-15 15:22:58,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:22:58,034 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 [2022-03-15 15:22:58,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:22:58,037 INFO L225 Difference]: With dead ends: 1426 [2022-03-15 15:22:58,037 INFO L226 Difference]: Without dead ends: 1303 [2022-03-15 15:22:58,038 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 [2022-03-15 15:22:58,038 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 55 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:22:58,039 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] [2022-03-15 15:22:58,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1303 states. [2022-03-15 15:22:58,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1303 to 1149. [2022-03-15 15:22:58,056 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) [2022-03-15 15:22:58,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1149 states to 1149 states and 3546 transitions. [2022-03-15 15:22:58,059 INFO L78 Accepts]: Start accepts. Automaton has 1149 states and 3546 transitions. Word has length 26 [2022-03-15 15:22:58,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:22:58,059 INFO L470 AbstractCegarLoop]: Abstraction has 1149 states and 3546 transitions. [2022-03-15 15:22:58,059 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) [2022-03-15 15:22:58,060 INFO L276 IsEmpty]: Start isEmpty. Operand 1149 states and 3546 transitions. [2022-03-15 15:22:58,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:22:58,062 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:22:58,062 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:22:58,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-15 15:22:58,062 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:22:58,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:22:58,063 INFO L85 PathProgramCache]: Analyzing trace with hash -161537293, now seen corresponding path program 23 times [2022-03-15 15:22:58,063 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:22:58,063 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322400316] [2022-03-15 15:22:58,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:22:58,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:22:58,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:22:58,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:22:58,150 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:22:58,150 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322400316] [2022-03-15 15:22:58,150 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322400316] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:22:58,150 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:22:58,150 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:22:58,151 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481815770] [2022-03-15 15:22:58,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:22:58,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:22:58,151 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:22:58,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:22:58,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:22:58,151 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) [2022-03-15 15:22:58,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:22:58,426 INFO L93 Difference]: Finished difference Result 1438 states and 4359 transitions. [2022-03-15 15:22:58,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:22:58,426 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:22:58,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:22:58,428 INFO L225 Difference]: With dead ends: 1438 [2022-03-15 15:22:58,428 INFO L226 Difference]: Without dead ends: 1327 [2022-03-15 15:22:58,428 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 [2022-03-15 15:22:58,429 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 15:22:58,429 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 276 Invalid, 675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 665 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 15:22:58,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1327 states. [2022-03-15 15:22:58,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1327 to 1164. [2022-03-15 15:22:58,446 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) [2022-03-15 15:22:58,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1164 states to 1164 states and 3592 transitions. [2022-03-15 15:22:58,449 INFO L78 Accepts]: Start accepts. Automaton has 1164 states and 3592 transitions. Word has length 26 [2022-03-15 15:22:58,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:22:58,449 INFO L470 AbstractCegarLoop]: Abstraction has 1164 states and 3592 transitions. [2022-03-15 15:22:58,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:22:58,449 INFO L276 IsEmpty]: Start isEmpty. Operand 1164 states and 3592 transitions. [2022-03-15 15:22:58,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:22:58,452 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:22:58,452 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:22:58,452 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-15 15:22:58,452 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:22:58,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:22:58,452 INFO L85 PathProgramCache]: Analyzing trace with hash -2097838219, now seen corresponding path program 24 times [2022-03-15 15:22:58,452 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:22:58,452 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778344634] [2022-03-15 15:22:58,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:22:58,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:22:58,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:22:58,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:22:58,541 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:22:58,541 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778344634] [2022-03-15 15:22:58,541 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778344634] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:22:58,542 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:22:58,542 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:22:58,542 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027641820] [2022-03-15 15:22:58,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:22:58,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:22:58,542 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:22:58,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:22:58,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:22:58,543 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) [2022-03-15 15:22:58,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:22:58,806 INFO L93 Difference]: Finished difference Result 1343 states and 4063 transitions. [2022-03-15 15:22:58,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:22:58,811 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 [2022-03-15 15:22:58,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:22:58,814 INFO L225 Difference]: With dead ends: 1343 [2022-03-15 15:22:58,815 INFO L226 Difference]: Without dead ends: 1209 [2022-03-15 15:22:58,815 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 [2022-03-15 15:22:58,815 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 15:22:58,817 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 278 Invalid, 737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 725 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 15:22:58,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1209 states. [2022-03-15 15:22:58,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1209 to 1153. [2022-03-15 15:22:58,852 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) [2022-03-15 15:22:58,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1153 states to 1153 states and 3557 transitions. [2022-03-15 15:22:58,855 INFO L78 Accepts]: Start accepts. Automaton has 1153 states and 3557 transitions. Word has length 26 [2022-03-15 15:22:58,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:22:58,855 INFO L470 AbstractCegarLoop]: Abstraction has 1153 states and 3557 transitions. [2022-03-15 15:22:58,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:22:58,855 INFO L276 IsEmpty]: Start isEmpty. Operand 1153 states and 3557 transitions. [2022-03-15 15:22:58,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:22:58,857 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:22:58,858 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:22:58,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-15 15:22:58,858 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:22:58,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:22:58,858 INFO L85 PathProgramCache]: Analyzing trace with hash -1730465835, now seen corresponding path program 25 times [2022-03-15 15:22:58,858 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:22:58,858 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420846461] [2022-03-15 15:22:58,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:22:58,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:22:58,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:22:58,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:22:58,953 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:22:58,953 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420846461] [2022-03-15 15:22:58,953 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420846461] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:22:58,953 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:22:58,953 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:22:58,953 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471267356] [2022-03-15 15:22:58,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:22:58,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:22:58,954 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:22:58,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:22:58,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:22:58,954 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) [2022-03-15 15:22:59,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:22:59,207 INFO L93 Difference]: Finished difference Result 1431 states and 4320 transitions. [2022-03-15 15:22:59,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:22:59,207 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:22:59,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:22:59,210 INFO L225 Difference]: With dead ends: 1431 [2022-03-15 15:22:59,210 INFO L226 Difference]: Without dead ends: 1310 [2022-03-15 15:22:59,210 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 [2022-03-15 15:22:59,211 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 [2022-03-15 15:22:59,211 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] [2022-03-15 15:22:59,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1310 states. [2022-03-15 15:22:59,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1310 to 1143. [2022-03-15 15:22:59,227 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) [2022-03-15 15:22:59,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1143 states to 1143 states and 3527 transitions. [2022-03-15 15:22:59,229 INFO L78 Accepts]: Start accepts. Automaton has 1143 states and 3527 transitions. Word has length 26 [2022-03-15 15:22:59,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:22:59,229 INFO L470 AbstractCegarLoop]: Abstraction has 1143 states and 3527 transitions. [2022-03-15 15:22:59,230 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:22:59,230 INFO L276 IsEmpty]: Start isEmpty. Operand 1143 states and 3527 transitions. [2022-03-15 15:22:59,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:22:59,232 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:22:59,232 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] [2022-03-15 15:22:59,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-15 15:22:59,232 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:22:59,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:22:59,233 INFO L85 PathProgramCache]: Analyzing trace with hash -770206281, now seen corresponding path program 26 times [2022-03-15 15:22:59,233 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:22:59,233 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157075101] [2022-03-15 15:22:59,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:22:59,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:22:59,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:22:59,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:22:59,312 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:22:59,312 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157075101] [2022-03-15 15:22:59,312 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157075101] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:22:59,312 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:22:59,313 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:22:59,313 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853096413] [2022-03-15 15:22:59,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:22:59,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:22:59,313 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:22:59,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:22:59,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:22:59,313 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) [2022-03-15 15:22:59,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:22:59,539 INFO L93 Difference]: Finished difference Result 1389 states and 4203 transitions. [2022-03-15 15:22:59,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:22:59,539 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 [2022-03-15 15:22:59,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:22:59,542 INFO L225 Difference]: With dead ends: 1389 [2022-03-15 15:22:59,542 INFO L226 Difference]: Without dead ends: 1278 [2022-03-15 15:22:59,542 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 [2022-03-15 15:22:59,543 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 55 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:22:59,543 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] [2022-03-15 15:22:59,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1278 states. [2022-03-15 15:22:59,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1278 to 1180. [2022-03-15 15:22:59,560 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) [2022-03-15 15:22:59,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1180 states to 1180 states and 3634 transitions. [2022-03-15 15:22:59,563 INFO L78 Accepts]: Start accepts. Automaton has 1180 states and 3634 transitions. Word has length 26 [2022-03-15 15:22:59,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:22:59,563 INFO L470 AbstractCegarLoop]: Abstraction has 1180 states and 3634 transitions. [2022-03-15 15:22:59,563 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) [2022-03-15 15:22:59,563 INFO L276 IsEmpty]: Start isEmpty. Operand 1180 states and 3634 transitions. [2022-03-15 15:22:59,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:22:59,566 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:22:59,566 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:22:59,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-15 15:22:59,566 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:22:59,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:22:59,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1588460089, now seen corresponding path program 27 times [2022-03-15 15:22:59,566 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:22:59,567 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216286138] [2022-03-15 15:22:59,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:22:59,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:22:59,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:22:59,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:22:59,652 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:22:59,652 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216286138] [2022-03-15 15:22:59,653 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216286138] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:22:59,653 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:22:59,653 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:22:59,653 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398147627] [2022-03-15 15:22:59,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:22:59,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:22:59,653 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:22:59,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:22:59,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:22:59,654 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) [2022-03-15 15:22:59,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:22:59,948 INFO L93 Difference]: Finished difference Result 1506 states and 4529 transitions. [2022-03-15 15:22:59,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:22:59,948 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:22:59,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:22:59,951 INFO L225 Difference]: With dead ends: 1506 [2022-03-15 15:22:59,951 INFO L226 Difference]: Without dead ends: 1281 [2022-03-15 15:22:59,952 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 [2022-03-15 15:22:59,952 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 15:22:59,952 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 303 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 684 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 15:22:59,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1281 states. [2022-03-15 15:22:59,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1281 to 1143. [2022-03-15 15:22:59,967 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) [2022-03-15 15:22:59,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1143 states to 1143 states and 3503 transitions. [2022-03-15 15:22:59,970 INFO L78 Accepts]: Start accepts. Automaton has 1143 states and 3503 transitions. Word has length 26 [2022-03-15 15:22:59,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:22:59,970 INFO L470 AbstractCegarLoop]: Abstraction has 1143 states and 3503 transitions. [2022-03-15 15:22:59,970 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) [2022-03-15 15:22:59,970 INFO L276 IsEmpty]: Start isEmpty. Operand 1143 states and 3503 transitions. [2022-03-15 15:22:59,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:22:59,972 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:22:59,973 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] [2022-03-15 15:22:59,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-15 15:22:59,973 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:22:59,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:22:59,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1807020245, now seen corresponding path program 28 times [2022-03-15 15:22:59,973 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:22:59,973 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075420070] [2022-03-15 15:22:59,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:22:59,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:22:59,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:00,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:00,072 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:00,072 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075420070] [2022-03-15 15:23:00,072 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075420070] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:00,072 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:00,072 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:00,072 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099221112] [2022-03-15 15:23:00,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:00,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:00,073 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:00,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:00,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:00,074 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) [2022-03-15 15:23:00,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:00,344 INFO L93 Difference]: Finished difference Result 1303 states and 3927 transitions. [2022-03-15 15:23:00,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:00,347 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:00,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:00,350 INFO L225 Difference]: With dead ends: 1303 [2022-03-15 15:23:00,350 INFO L226 Difference]: Without dead ends: 1192 [2022-03-15 15:23:00,350 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:00,350 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 15:23:00,351 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 278 Invalid, 665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 653 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 15:23:00,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1192 states. [2022-03-15 15:23:00,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1192 to 1154. [2022-03-15 15:23:00,365 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) [2022-03-15 15:23:00,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1154 states to 1154 states and 3534 transitions. [2022-03-15 15:23:00,368 INFO L78 Accepts]: Start accepts. Automaton has 1154 states and 3534 transitions. Word has length 26 [2022-03-15 15:23:00,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:00,368 INFO L470 AbstractCegarLoop]: Abstraction has 1154 states and 3534 transitions. [2022-03-15 15:23:00,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:00,368 INFO L276 IsEmpty]: Start isEmpty. Operand 1154 states and 3534 transitions. [2022-03-15 15:23:00,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:00,370 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:00,370 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] [2022-03-15 15:23:00,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-15 15:23:00,371 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:00,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:00,371 INFO L85 PathProgramCache]: Analyzing trace with hash -129280681, now seen corresponding path program 29 times [2022-03-15 15:23:00,371 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:00,371 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693046073] [2022-03-15 15:23:00,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:00,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:00,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:00,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:00,462 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:00,462 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693046073] [2022-03-15 15:23:00,462 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693046073] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:00,462 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:00,462 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:00,462 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040883076] [2022-03-15 15:23:00,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:00,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:00,463 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:00,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:00,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:00,463 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) [2022-03-15 15:23:00,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:00,788 INFO L93 Difference]: Finished difference Result 1496 states and 4503 transitions. [2022-03-15 15:23:00,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:00,788 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:00,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:00,791 INFO L225 Difference]: With dead ends: 1496 [2022-03-15 15:23:00,791 INFO L226 Difference]: Without dead ends: 1369 [2022-03-15 15:23:00,791 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 [2022-03-15 15:23:00,791 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 62 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 721 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 15:23:00,792 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 276 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 721 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 15:23:00,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1369 states. [2022-03-15 15:23:00,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1369 to 1143. [2022-03-15 15:23:00,807 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) [2022-03-15 15:23:00,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1143 states to 1143 states and 3501 transitions. [2022-03-15 15:23:00,810 INFO L78 Accepts]: Start accepts. Automaton has 1143 states and 3501 transitions. Word has length 26 [2022-03-15 15:23:00,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:00,811 INFO L470 AbstractCegarLoop]: Abstraction has 1143 states and 3501 transitions. [2022-03-15 15:23:00,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:00,811 INFO L276 IsEmpty]: Start isEmpty. Operand 1143 states and 3501 transitions. [2022-03-15 15:23:00,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:00,813 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:00,813 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:00,813 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-15 15:23:00,814 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:00,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:00,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1431771585, now seen corresponding path program 30 times [2022-03-15 15:23:00,814 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:00,814 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154402153] [2022-03-15 15:23:00,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:00,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:00,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:00,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:00,899 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:00,899 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154402153] [2022-03-15 15:23:00,899 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154402153] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:00,899 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:00,899 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:00,899 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035321614] [2022-03-15 15:23:00,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:00,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:00,899 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:00,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:00,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:00,900 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) [2022-03-15 15:23:01,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:01,177 INFO L93 Difference]: Finished difference Result 1406 states and 4227 transitions. [2022-03-15 15:23:01,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:01,177 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:01,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:01,179 INFO L225 Difference]: With dead ends: 1406 [2022-03-15 15:23:01,179 INFO L226 Difference]: Without dead ends: 1239 [2022-03-15 15:23:01,179 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 [2022-03-15 15:23:01,180 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 15:23:01,180 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 280 Invalid, 727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 715 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 15:23:01,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1239 states. [2022-03-15 15:23:01,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1239 to 1113. [2022-03-15 15:23:01,192 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) [2022-03-15 15:23:01,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1113 states to 1113 states and 3431 transitions. [2022-03-15 15:23:01,194 INFO L78 Accepts]: Start accepts. Automaton has 1113 states and 3431 transitions. Word has length 26 [2022-03-15 15:23:01,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:01,194 INFO L470 AbstractCegarLoop]: Abstraction has 1113 states and 3431 transitions. [2022-03-15 15:23:01,194 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:01,194 INFO L276 IsEmpty]: Start isEmpty. Operand 1113 states and 3431 transitions. [2022-03-15 15:23:01,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:01,196 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:01,196 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:01,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-15 15:23:01,197 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:01,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:01,197 INFO L85 PathProgramCache]: Analyzing trace with hash -269593419, now seen corresponding path program 31 times [2022-03-15 15:23:01,197 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:01,197 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368538738] [2022-03-15 15:23:01,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:01,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:01,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:01,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:01,262 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:01,262 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368538738] [2022-03-15 15:23:01,262 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368538738] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:01,262 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:01,262 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 15:23:01,262 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510934634] [2022-03-15 15:23:01,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:01,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 15:23:01,262 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:01,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 15:23:01,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-03-15 15:23:01,263 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) [2022-03-15 15:23:01,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:01,464 INFO L93 Difference]: Finished difference Result 1453 states and 4359 transitions. [2022-03-15 15:23:01,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-15 15:23:01,464 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 [2022-03-15 15:23:01,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:01,466 INFO L225 Difference]: With dead ends: 1453 [2022-03-15 15:23:01,466 INFO L226 Difference]: Without dead ends: 1292 [2022-03-15 15:23:01,466 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 [2022-03-15 15:23:01,467 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 55 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:23:01,467 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] [2022-03-15 15:23:01,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1292 states. [2022-03-15 15:23:01,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1292 to 1206. [2022-03-15 15:23:01,479 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) [2022-03-15 15:23:01,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1206 states to 1206 states and 3680 transitions. [2022-03-15 15:23:01,481 INFO L78 Accepts]: Start accepts. Automaton has 1206 states and 3680 transitions. Word has length 26 [2022-03-15 15:23:01,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:01,481 INFO L470 AbstractCegarLoop]: Abstraction has 1206 states and 3680 transitions. [2022-03-15 15:23:01,481 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) [2022-03-15 15:23:01,481 INFO L276 IsEmpty]: Start isEmpty. Operand 1206 states and 3680 transitions. [2022-03-15 15:23:01,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:01,483 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:01,484 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:01,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-15 15:23:01,484 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:01,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:01,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1909104759, now seen corresponding path program 32 times [2022-03-15 15:23:01,484 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:01,484 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212211150] [2022-03-15 15:23:01,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:01,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:01,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:01,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:01,561 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:01,562 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212211150] [2022-03-15 15:23:01,562 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212211150] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:01,562 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:01,562 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:23:01,562 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280079813] [2022-03-15 15:23:01,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:01,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:23:01,562 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:01,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:23:01,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:23:01,563 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) [2022-03-15 15:23:01,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:01,811 INFO L93 Difference]: Finished difference Result 1409 states and 4234 transitions. [2022-03-15 15:23:01,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:23:01,811 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 [2022-03-15 15:23:01,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:01,813 INFO L225 Difference]: With dead ends: 1409 [2022-03-15 15:23:01,813 INFO L226 Difference]: Without dead ends: 1286 [2022-03-15 15:23:01,814 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 [2022-03-15 15:23:01,814 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 [2022-03-15 15:23:01,814 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] [2022-03-15 15:23:01,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1286 states. [2022-03-15 15:23:01,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1286 to 1180. [2022-03-15 15:23:01,826 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) [2022-03-15 15:23:01,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1180 states to 1180 states and 3612 transitions. [2022-03-15 15:23:01,828 INFO L78 Accepts]: Start accepts. Automaton has 1180 states and 3612 transitions. Word has length 26 [2022-03-15 15:23:01,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:01,828 INFO L470 AbstractCegarLoop]: Abstraction has 1180 states and 3612 transitions. [2022-03-15 15:23:01,828 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) [2022-03-15 15:23:01,828 INFO L276 IsEmpty]: Start isEmpty. Operand 1180 states and 3612 transitions. [2022-03-15 15:23:01,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:01,830 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:01,831 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] [2022-03-15 15:23:01,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-15 15:23:01,831 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:01,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:01,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1778640983, now seen corresponding path program 33 times [2022-03-15 15:23:01,831 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:01,831 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092390803] [2022-03-15 15:23:01,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:01,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:01,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:01,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:01,898 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:01,898 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092390803] [2022-03-15 15:23:01,898 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092390803] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:01,899 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:01,899 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 15:23:01,899 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227664897] [2022-03-15 15:23:01,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:01,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 15:23:01,899 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:01,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 15:23:01,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-03-15 15:23:01,900 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) [2022-03-15 15:23:02,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:02,077 INFO L93 Difference]: Finished difference Result 1516 states and 4589 transitions. [2022-03-15 15:23:02,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-15 15:23:02,077 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 [2022-03-15 15:23:02,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:02,080 INFO L225 Difference]: With dead ends: 1516 [2022-03-15 15:23:02,080 INFO L226 Difference]: Without dead ends: 1419 [2022-03-15 15:23:02,080 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 [2022-03-15 15:23:02,081 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, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:23:02,081 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 186 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:23:02,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1419 states. [2022-03-15 15:23:02,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1419 to 1247. [2022-03-15 15:23:02,101 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) [2022-03-15 15:23:02,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1247 states to 1247 states and 3825 transitions. [2022-03-15 15:23:02,103 INFO L78 Accepts]: Start accepts. Automaton has 1247 states and 3825 transitions. Word has length 26 [2022-03-15 15:23:02,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:02,104 INFO L470 AbstractCegarLoop]: Abstraction has 1247 states and 3825 transitions. [2022-03-15 15:23:02,104 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) [2022-03-15 15:23:02,104 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states and 3825 transitions. [2022-03-15 15:23:02,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:02,106 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:02,106 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:02,106 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-15 15:23:02,106 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:02,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:02,107 INFO L85 PathProgramCache]: Analyzing trace with hash -2016900199, now seen corresponding path program 34 times [2022-03-15 15:23:02,107 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:02,107 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438521917] [2022-03-15 15:23:02,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:02,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:02,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:02,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:02,189 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:02,189 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438521917] [2022-03-15 15:23:02,189 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438521917] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:02,189 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:02,189 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:23:02,189 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123079105] [2022-03-15 15:23:02,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:02,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:23:02,190 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:02,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:23:02,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:23:02,190 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) [2022-03-15 15:23:02,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:02,426 INFO L93 Difference]: Finished difference Result 1463 states and 4440 transitions. [2022-03-15 15:23:02,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:23:02,426 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 [2022-03-15 15:23:02,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:02,428 INFO L225 Difference]: With dead ends: 1463 [2022-03-15 15:23:02,428 INFO L226 Difference]: Without dead ends: 1384 [2022-03-15 15:23:02,428 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 [2022-03-15 15:23:02,429 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 50 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 571 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:23:02,429 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] [2022-03-15 15:23:02,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1384 states. [2022-03-15 15:23:02,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1384 to 1263. [2022-03-15 15:23:02,446 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) [2022-03-15 15:23:02,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1263 states to 1263 states and 3875 transitions. [2022-03-15 15:23:02,449 INFO L78 Accepts]: Start accepts. Automaton has 1263 states and 3875 transitions. Word has length 26 [2022-03-15 15:23:02,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:02,449 INFO L470 AbstractCegarLoop]: Abstraction has 1263 states and 3875 transitions. [2022-03-15 15:23:02,449 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) [2022-03-15 15:23:02,449 INFO L276 IsEmpty]: Start isEmpty. Operand 1263 states and 3875 transitions. [2022-03-15 15:23:02,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:02,451 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:02,451 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] [2022-03-15 15:23:02,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-15 15:23:02,451 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:02,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:02,451 INFO L85 PathProgramCache]: Analyzing trace with hash 566725593, now seen corresponding path program 35 times [2022-03-15 15:23:02,451 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:02,452 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766433410] [2022-03-15 15:23:02,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:02,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:02,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:02,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:02,529 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:02,529 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766433410] [2022-03-15 15:23:02,529 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766433410] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:02,529 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:02,529 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:23:02,529 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845901315] [2022-03-15 15:23:02,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:02,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:23:02,530 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:02,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:23:02,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:23:02,530 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) [2022-03-15 15:23:02,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:02,807 INFO L93 Difference]: Finished difference Result 1486 states and 4488 transitions. [2022-03-15 15:23:02,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:23:02,808 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 [2022-03-15 15:23:02,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:02,811 INFO L225 Difference]: With dead ends: 1486 [2022-03-15 15:23:02,811 INFO L226 Difference]: Without dead ends: 1382 [2022-03-15 15:23:02,811 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 [2022-03-15 15:23:02,811 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 15:23:02,812 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 228 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 608 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 15:23:02,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1382 states. [2022-03-15 15:23:02,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1382 to 1252. [2022-03-15 15:23:02,828 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) [2022-03-15 15:23:02,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1252 states to 1252 states and 3838 transitions. [2022-03-15 15:23:02,831 INFO L78 Accepts]: Start accepts. Automaton has 1252 states and 3838 transitions. Word has length 26 [2022-03-15 15:23:02,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:02,831 INFO L470 AbstractCegarLoop]: Abstraction has 1252 states and 3838 transitions. [2022-03-15 15:23:02,831 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) [2022-03-15 15:23:02,831 INFO L276 IsEmpty]: Start isEmpty. Operand 1252 states and 3838 transitions. [2022-03-15 15:23:02,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:02,834 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:02,834 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:02,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-15 15:23:02,834 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:02,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:02,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1096324233, now seen corresponding path program 36 times [2022-03-15 15:23:02,834 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:02,834 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814776773] [2022-03-15 15:23:02,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:02,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:02,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:02,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:02,912 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:02,912 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814776773] [2022-03-15 15:23:02,912 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814776773] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:02,912 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:02,912 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:23:02,912 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612711244] [2022-03-15 15:23:02,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:02,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:23:02,913 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:02,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:23:02,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:23:02,913 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) [2022-03-15 15:23:03,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:03,127 INFO L93 Difference]: Finished difference Result 1521 states and 4598 transitions. [2022-03-15 15:23:03,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:23:03,127 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 [2022-03-15 15:23:03,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:03,129 INFO L225 Difference]: With dead ends: 1521 [2022-03-15 15:23:03,129 INFO L226 Difference]: Without dead ends: 1427 [2022-03-15 15:23:03,130 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 [2022-03-15 15:23:03,130 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 50 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:23:03,130 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] [2022-03-15 15:23:03,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1427 states. [2022-03-15 15:23:03,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1427 to 1240. [2022-03-15 15:23:03,146 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) [2022-03-15 15:23:03,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1240 states to 1240 states and 3803 transitions. [2022-03-15 15:23:03,148 INFO L78 Accepts]: Start accepts. Automaton has 1240 states and 3803 transitions. Word has length 26 [2022-03-15 15:23:03,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:03,149 INFO L470 AbstractCegarLoop]: Abstraction has 1240 states and 3803 transitions. [2022-03-15 15:23:03,149 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) [2022-03-15 15:23:03,149 INFO L276 IsEmpty]: Start isEmpty. Operand 1240 states and 3803 transitions. [2022-03-15 15:23:03,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:03,151 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:03,151 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:03,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-15 15:23:03,151 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:03,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:03,152 INFO L85 PathProgramCache]: Analyzing trace with hash 2138397041, now seen corresponding path program 37 times [2022-03-15 15:23:03,152 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:03,152 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394445999] [2022-03-15 15:23:03,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:03,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:03,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:03,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:03,216 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:03,216 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394445999] [2022-03-15 15:23:03,216 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394445999] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:03,216 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:03,216 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 15:23:03,216 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726387388] [2022-03-15 15:23:03,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:03,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 15:23:03,217 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:03,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 15:23:03,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-03-15 15:23:03,217 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) [2022-03-15 15:23:03,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:03,409 INFO L93 Difference]: Finished difference Result 1472 states and 4446 transitions. [2022-03-15 15:23:03,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-15 15:23:03,409 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 [2022-03-15 15:23:03,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:03,413 INFO L225 Difference]: With dead ends: 1472 [2022-03-15 15:23:03,413 INFO L226 Difference]: Without dead ends: 1393 [2022-03-15 15:23:03,413 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 [2022-03-15 15:23:03,413 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, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:23:03,413 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 184 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:23:03,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1393 states. [2022-03-15 15:23:03,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1393 to 1277. [2022-03-15 15:23:03,431 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) [2022-03-15 15:23:03,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1277 states to 1277 states and 3910 transitions. [2022-03-15 15:23:03,434 INFO L78 Accepts]: Start accepts. Automaton has 1277 states and 3910 transitions. Word has length 26 [2022-03-15 15:23:03,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:03,434 INFO L470 AbstractCegarLoop]: Abstraction has 1277 states and 3910 transitions. [2022-03-15 15:23:03,434 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) [2022-03-15 15:23:03,434 INFO L276 IsEmpty]: Start isEmpty. Operand 1277 states and 3910 transitions. [2022-03-15 15:23:03,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:03,437 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:03,437 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] [2022-03-15 15:23:03,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-15 15:23:03,437 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:03,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:03,439 INFO L85 PathProgramCache]: Analyzing trace with hash 427055537, now seen corresponding path program 38 times [2022-03-15 15:23:03,439 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:03,440 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604002544] [2022-03-15 15:23:03,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:03,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:03,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:03,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:03,517 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:03,518 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604002544] [2022-03-15 15:23:03,518 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604002544] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:03,518 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:03,518 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:23:03,518 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487679417] [2022-03-15 15:23:03,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:03,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:23:03,518 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:03,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:23:03,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:23:03,519 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) [2022-03-15 15:23:03,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:03,739 INFO L93 Difference]: Finished difference Result 1553 states and 4668 transitions. [2022-03-15 15:23:03,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:23:03,739 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 [2022-03-15 15:23:03,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:03,742 INFO L225 Difference]: With dead ends: 1553 [2022-03-15 15:23:03,742 INFO L226 Difference]: Without dead ends: 1354 [2022-03-15 15:23:03,742 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 [2022-03-15 15:23:03,742 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 59 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:23:03,743 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] [2022-03-15 15:23:03,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1354 states. [2022-03-15 15:23:03,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1354 to 1244. [2022-03-15 15:23:03,756 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) [2022-03-15 15:23:03,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1244 states to 1244 states and 3779 transitions. [2022-03-15 15:23:03,758 INFO L78 Accepts]: Start accepts. Automaton has 1244 states and 3779 transitions. Word has length 26 [2022-03-15 15:23:03,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:03,758 INFO L470 AbstractCegarLoop]: Abstraction has 1244 states and 3779 transitions. [2022-03-15 15:23:03,758 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) [2022-03-15 15:23:03,758 INFO L276 IsEmpty]: Start isEmpty. Operand 1244 states and 3779 transitions. [2022-03-15 15:23:03,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:03,760 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:03,760 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] [2022-03-15 15:23:03,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-15 15:23:03,760 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:03,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:03,761 INFO L85 PathProgramCache]: Analyzing trace with hash 600977811, now seen corresponding path program 39 times [2022-03-15 15:23:03,761 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:03,761 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595782051] [2022-03-15 15:23:03,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:03,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:03,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:03,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:03,837 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:03,837 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595782051] [2022-03-15 15:23:03,837 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595782051] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:03,838 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:03,838 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:23:03,838 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233416481] [2022-03-15 15:23:03,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:03,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:23:03,838 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:03,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:23:03,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:23:03,839 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) [2022-03-15 15:23:04,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:04,047 INFO L93 Difference]: Finished difference Result 1430 states and 4297 transitions. [2022-03-15 15:23:04,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:23:04,047 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 [2022-03-15 15:23:04,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:04,049 INFO L225 Difference]: With dead ends: 1430 [2022-03-15 15:23:04,049 INFO L226 Difference]: Without dead ends: 1351 [2022-03-15 15:23:04,049 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 [2022-03-15 15:23:04,050 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 48 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:23:04,050 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] [2022-03-15 15:23:04,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1351 states. [2022-03-15 15:23:04,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1351 to 1255. [2022-03-15 15:23:04,066 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) [2022-03-15 15:23:04,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 3810 transitions. [2022-03-15 15:23:04,069 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 3810 transitions. Word has length 26 [2022-03-15 15:23:04,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:04,069 INFO L470 AbstractCegarLoop]: Abstraction has 1255 states and 3810 transitions. [2022-03-15 15:23:04,069 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) [2022-03-15 15:23:04,069 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 3810 transitions. [2022-03-15 15:23:04,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:04,071 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:04,071 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:04,071 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-15 15:23:04,072 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:04,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:04,072 INFO L85 PathProgramCache]: Analyzing trace with hash -1110363693, now seen corresponding path program 40 times [2022-03-15 15:23:04,072 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:04,072 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656786996] [2022-03-15 15:23:04,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:04,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:04,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:04,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:04,159 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:04,159 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656786996] [2022-03-15 15:23:04,159 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656786996] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:04,159 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:04,159 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:23:04,160 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040377757] [2022-03-15 15:23:04,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:04,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:23:04,160 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:04,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:23:04,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:23:04,160 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) [2022-03-15 15:23:04,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:04,404 INFO L93 Difference]: Finished difference Result 1537 states and 4623 transitions. [2022-03-15 15:23:04,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:23:04,404 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 [2022-03-15 15:23:04,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:04,406 INFO L225 Difference]: With dead ends: 1537 [2022-03-15 15:23:04,406 INFO L226 Difference]: Without dead ends: 1442 [2022-03-15 15:23:04,407 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 [2022-03-15 15:23:04,407 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 53 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:23:04,407 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] [2022-03-15 15:23:04,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1442 states. [2022-03-15 15:23:04,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1442 to 1244. [2022-03-15 15:23:04,424 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) [2022-03-15 15:23:04,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1244 states to 1244 states and 3776 transitions. [2022-03-15 15:23:04,427 INFO L78 Accepts]: Start accepts. Automaton has 1244 states and 3776 transitions. Word has length 26 [2022-03-15 15:23:04,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:04,427 INFO L470 AbstractCegarLoop]: Abstraction has 1244 states and 3776 transitions. [2022-03-15 15:23:04,427 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) [2022-03-15 15:23:04,427 INFO L276 IsEmpty]: Start isEmpty. Operand 1244 states and 3776 transitions. [2022-03-15 15:23:04,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:04,429 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:04,429 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:04,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-15 15:23:04,430 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:04,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:04,430 INFO L85 PathProgramCache]: Analyzing trace with hash -681181457, now seen corresponding path program 41 times [2022-03-15 15:23:04,430 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:04,430 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300755908] [2022-03-15 15:23:04,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:04,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:04,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:04,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:04,504 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:04,505 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300755908] [2022-03-15 15:23:04,505 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300755908] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:04,505 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:04,505 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:23:04,505 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684895135] [2022-03-15 15:23:04,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:04,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:23:04,506 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:04,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:23:04,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:23:04,507 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) [2022-03-15 15:23:04,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:04,753 INFO L93 Difference]: Finished difference Result 1525 states and 4571 transitions. [2022-03-15 15:23:04,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:23:04,754 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 [2022-03-15 15:23:04,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:04,757 INFO L225 Difference]: With dead ends: 1525 [2022-03-15 15:23:04,757 INFO L226 Difference]: Without dead ends: 1377 [2022-03-15 15:23:04,757 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 [2022-03-15 15:23:04,757 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 [2022-03-15 15:23:04,757 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] [2022-03-15 15:23:04,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1377 states. [2022-03-15 15:23:04,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1377 to 1245. [2022-03-15 15:23:04,771 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) [2022-03-15 15:23:04,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1245 states to 1245 states and 3786 transitions. [2022-03-15 15:23:04,773 INFO L78 Accepts]: Start accepts. Automaton has 1245 states and 3786 transitions. Word has length 26 [2022-03-15 15:23:04,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:04,774 INFO L470 AbstractCegarLoop]: Abstraction has 1245 states and 3786 transitions. [2022-03-15 15:23:04,774 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) [2022-03-15 15:23:04,774 INFO L276 IsEmpty]: Start isEmpty. Operand 1245 states and 3786 transitions. [2022-03-15 15:23:04,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:04,776 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:04,776 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] [2022-03-15 15:23:04,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-15 15:23:04,776 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:04,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:04,776 INFO L85 PathProgramCache]: Analyzing trace with hash 2034862771, now seen corresponding path program 42 times [2022-03-15 15:23:04,777 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:04,777 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779270076] [2022-03-15 15:23:04,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:04,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:04,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:04,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:04,859 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:04,859 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779270076] [2022-03-15 15:23:04,859 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779270076] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:04,859 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:04,859 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:23:04,859 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752589501] [2022-03-15 15:23:04,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:04,859 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:23:04,859 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:04,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:23:04,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:23:04,860 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) [2022-03-15 15:23:05,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:05,095 INFO L93 Difference]: Finished difference Result 1531 states and 4573 transitions. [2022-03-15 15:23:05,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:23:05,095 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 [2022-03-15 15:23:05,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:05,098 INFO L225 Difference]: With dead ends: 1531 [2022-03-15 15:23:05,098 INFO L226 Difference]: Without dead ends: 1401 [2022-03-15 15:23:05,098 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 [2022-03-15 15:23:05,098 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 56 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:23:05,098 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] [2022-03-15 15:23:05,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1401 states. [2022-03-15 15:23:05,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1401 to 1297. [2022-03-15 15:23:05,121 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) [2022-03-15 15:23:05,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1297 states to 1297 states and 3926 transitions. [2022-03-15 15:23:05,123 INFO L78 Accepts]: Start accepts. Automaton has 1297 states and 3926 transitions. Word has length 26 [2022-03-15 15:23:05,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:05,123 INFO L470 AbstractCegarLoop]: Abstraction has 1297 states and 3926 transitions. [2022-03-15 15:23:05,123 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) [2022-03-15 15:23:05,123 INFO L276 IsEmpty]: Start isEmpty. Operand 1297 states and 3926 transitions. [2022-03-15 15:23:05,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:05,125 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:05,125 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:05,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-15 15:23:05,125 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:05,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:05,126 INFO L85 PathProgramCache]: Analyzing trace with hash -81406347, now seen corresponding path program 43 times [2022-03-15 15:23:05,126 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:05,126 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609259301] [2022-03-15 15:23:05,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:05,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:05,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:05,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:05,215 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:05,215 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609259301] [2022-03-15 15:23:05,215 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609259301] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:05,215 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:05,215 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:05,216 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875871358] [2022-03-15 15:23:05,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:05,216 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:05,216 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:05,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:05,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:05,216 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) [2022-03-15 15:23:05,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:05,480 INFO L93 Difference]: Finished difference Result 1518 states and 4526 transitions. [2022-03-15 15:23:05,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:05,481 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:05,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:05,483 INFO L225 Difference]: With dead ends: 1518 [2022-03-15 15:23:05,483 INFO L226 Difference]: Without dead ends: 1395 [2022-03-15 15:23:05,483 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 [2022-03-15 15:23:05,483 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 15:23:05,484 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 287 Invalid, 742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 732 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 15:23:05,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1395 states. [2022-03-15 15:23:05,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1395 to 1271. [2022-03-15 15:23:05,496 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) [2022-03-15 15:23:05,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1271 states to 1271 states and 3860 transitions. [2022-03-15 15:23:05,498 INFO L78 Accepts]: Start accepts. Automaton has 1271 states and 3860 transitions. Word has length 26 [2022-03-15 15:23:05,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:05,498 INFO L470 AbstractCegarLoop]: Abstraction has 1271 states and 3860 transitions. [2022-03-15 15:23:05,498 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:05,498 INFO L276 IsEmpty]: Start isEmpty. Operand 1271 states and 3860 transitions. [2022-03-15 15:23:05,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:05,500 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:05,500 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:05,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-15 15:23:05,500 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:05,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:05,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1828054805, now seen corresponding path program 44 times [2022-03-15 15:23:05,501 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:05,501 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095202859] [2022-03-15 15:23:05,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:05,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:05,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:05,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:05,576 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:05,576 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095202859] [2022-03-15 15:23:05,576 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095202859] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:05,576 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:05,576 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:23:05,576 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012388475] [2022-03-15 15:23:05,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:05,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:23:05,577 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:05,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:23:05,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:23:05,577 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) [2022-03-15 15:23:05,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:05,786 INFO L93 Difference]: Finished difference Result 1636 states and 4901 transitions. [2022-03-15 15:23:05,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:23:05,788 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 [2022-03-15 15:23:05,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:05,791 INFO L225 Difference]: With dead ends: 1636 [2022-03-15 15:23:05,791 INFO L226 Difference]: Without dead ends: 1496 [2022-03-15 15:23:05,791 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 [2022-03-15 15:23:05,792 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 53 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 543 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:23:05,792 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] [2022-03-15 15:23:05,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1496 states. [2022-03-15 15:23:05,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1496 to 1331. [2022-03-15 15:23:05,809 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) [2022-03-15 15:23:05,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1331 states to 1331 states and 4038 transitions. [2022-03-15 15:23:05,812 INFO L78 Accepts]: Start accepts. Automaton has 1331 states and 4038 transitions. Word has length 26 [2022-03-15 15:23:05,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:05,812 INFO L470 AbstractCegarLoop]: Abstraction has 1331 states and 4038 transitions. [2022-03-15 15:23:05,813 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) [2022-03-15 15:23:05,813 INFO L276 IsEmpty]: Start isEmpty. Operand 1331 states and 4038 transitions. [2022-03-15 15:23:05,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:05,815 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:05,815 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] [2022-03-15 15:23:05,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-15 15:23:05,815 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:05,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:05,816 INFO L85 PathProgramCache]: Analyzing trace with hash 398238257, now seen corresponding path program 45 times [2022-03-15 15:23:05,816 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:05,816 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794559753] [2022-03-15 15:23:05,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:05,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:05,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:05,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:05,906 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:05,906 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794559753] [2022-03-15 15:23:05,907 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794559753] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:05,907 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:05,907 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:05,907 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979830012] [2022-03-15 15:23:05,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:05,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:05,907 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:05,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:05,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:05,908 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) [2022-03-15 15:23:06,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:06,166 INFO L93 Difference]: Finished difference Result 1514 states and 4527 transitions. [2022-03-15 15:23:06,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:06,166 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:06,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:06,168 INFO L225 Difference]: With dead ends: 1514 [2022-03-15 15:23:06,169 INFO L226 Difference]: Without dead ends: 1403 [2022-03-15 15:23:06,169 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 [2022-03-15 15:23:06,172 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 [2022-03-15 15:23:06,172 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] [2022-03-15 15:23:06,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1403 states. [2022-03-15 15:23:06,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1403 to 1295. [2022-03-15 15:23:06,185 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) [2022-03-15 15:23:06,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1295 states to 1295 states and 3921 transitions. [2022-03-15 15:23:06,187 INFO L78 Accepts]: Start accepts. Automaton has 1295 states and 3921 transitions. Word has length 26 [2022-03-15 15:23:06,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:06,187 INFO L470 AbstractCegarLoop]: Abstraction has 1295 states and 3921 transitions. [2022-03-15 15:23:06,187 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:06,187 INFO L276 IsEmpty]: Start isEmpty. Operand 1295 states and 3921 transitions. [2022-03-15 15:23:06,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:06,189 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:06,189 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:06,189 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-15 15:23:06,189 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:06,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:06,189 INFO L85 PathProgramCache]: Analyzing trace with hash -313086959, now seen corresponding path program 46 times [2022-03-15 15:23:06,190 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:06,190 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757258036] [2022-03-15 15:23:06,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:06,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:06,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:06,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:06,282 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:06,283 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757258036] [2022-03-15 15:23:06,283 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757258036] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:06,283 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:06,283 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:06,283 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713410623] [2022-03-15 15:23:06,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:06,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:06,283 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:06,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:06,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:06,284 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) [2022-03-15 15:23:06,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:06,527 INFO L93 Difference]: Finished difference Result 1453 states and 4342 transitions. [2022-03-15 15:23:06,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:06,528 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:06,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:06,530 INFO L225 Difference]: With dead ends: 1453 [2022-03-15 15:23:06,530 INFO L226 Difference]: Without dead ends: 1374 [2022-03-15 15:23:06,530 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 [2022-03-15 15:23:06,530 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 [2022-03-15 15:23:06,531 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] [2022-03-15 15:23:06,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1374 states. [2022-03-15 15:23:06,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1374 to 1319. [2022-03-15 15:23:06,544 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) [2022-03-15 15:23:06,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1319 states to 1319 states and 3994 transitions. [2022-03-15 15:23:06,546 INFO L78 Accepts]: Start accepts. Automaton has 1319 states and 3994 transitions. Word has length 26 [2022-03-15 15:23:06,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:06,546 INFO L470 AbstractCegarLoop]: Abstraction has 1319 states and 3994 transitions. [2022-03-15 15:23:06,546 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:06,546 INFO L276 IsEmpty]: Start isEmpty. Operand 1319 states and 3994 transitions. [2022-03-15 15:23:06,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:06,548 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:06,548 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:06,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-15 15:23:06,548 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:06,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:06,549 INFO L85 PathProgramCache]: Analyzing trace with hash 2045579411, now seen corresponding path program 47 times [2022-03-15 15:23:06,549 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:06,549 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315985581] [2022-03-15 15:23:06,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:06,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:06,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:06,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:06,661 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:06,661 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315985581] [2022-03-15 15:23:06,661 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315985581] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:06,661 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:06,661 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:06,661 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320553398] [2022-03-15 15:23:06,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:06,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:06,661 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:06,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:06,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:06,662 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) [2022-03-15 15:23:06,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:06,924 INFO L93 Difference]: Finished difference Result 1550 states and 4630 transitions. [2022-03-15 15:23:06,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:06,925 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:06,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:06,927 INFO L225 Difference]: With dead ends: 1550 [2022-03-15 15:23:06,927 INFO L226 Difference]: Without dead ends: 1455 [2022-03-15 15:23:06,927 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 [2022-03-15 15:23:06,928 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 15:23:06,928 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 264 Invalid, 733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 723 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 15:23:06,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1455 states. [2022-03-15 15:23:06,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1455 to 1323. [2022-03-15 15:23:06,946 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) [2022-03-15 15:23:06,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1323 states to 1323 states and 4007 transitions. [2022-03-15 15:23:06,949 INFO L78 Accepts]: Start accepts. Automaton has 1323 states and 4007 transitions. Word has length 26 [2022-03-15 15:23:06,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:06,949 INFO L470 AbstractCegarLoop]: Abstraction has 1323 states and 4007 transitions. [2022-03-15 15:23:06,949 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:06,949 INFO L276 IsEmpty]: Start isEmpty. Operand 1323 states and 4007 transitions. [2022-03-15 15:23:06,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:06,951 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:06,951 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:06,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-15 15:23:06,952 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:06,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:06,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1882015501, now seen corresponding path program 48 times [2022-03-15 15:23:06,952 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:06,952 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739524116] [2022-03-15 15:23:06,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:06,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:06,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:07,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:07,037 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:07,038 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739524116] [2022-03-15 15:23:07,038 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739524116] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:07,038 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:07,038 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:07,038 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833422372] [2022-03-15 15:23:07,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:07,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:07,038 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:07,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:07,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:07,039 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) [2022-03-15 15:23:07,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:07,303 INFO L93 Difference]: Finished difference Result 1551 states and 4630 transitions. [2022-03-15 15:23:07,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:07,303 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 [2022-03-15 15:23:07,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:07,305 INFO L225 Difference]: With dead ends: 1551 [2022-03-15 15:23:07,306 INFO L226 Difference]: Without dead ends: 1472 [2022-03-15 15:23:07,306 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 [2022-03-15 15:23:07,306 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 15:23:07,307 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 262 Invalid, 679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 671 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 15:23:07,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1472 states. [2022-03-15 15:23:07,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1472 to 1327. [2022-03-15 15:23:07,321 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) [2022-03-15 15:23:07,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1327 states to 1327 states and 4015 transitions. [2022-03-15 15:23:07,323 INFO L78 Accepts]: Start accepts. Automaton has 1327 states and 4015 transitions. Word has length 26 [2022-03-15 15:23:07,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:07,323 INFO L470 AbstractCegarLoop]: Abstraction has 1327 states and 4015 transitions. [2022-03-15 15:23:07,323 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) [2022-03-15 15:23:07,324 INFO L276 IsEmpty]: Start isEmpty. Operand 1327 states and 4015 transitions. [2022-03-15 15:23:07,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:07,325 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:07,325 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:07,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-03-15 15:23:07,326 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:07,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:07,326 INFO L85 PathProgramCache]: Analyzing trace with hash 97667705, now seen corresponding path program 49 times [2022-03-15 15:23:07,326 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:07,326 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325541413] [2022-03-15 15:23:07,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:07,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:07,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:07,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:07,423 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:07,423 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325541413] [2022-03-15 15:23:07,423 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325541413] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:07,423 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:07,423 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:07,423 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536614408] [2022-03-15 15:23:07,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:07,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:07,424 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:07,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:07,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:07,424 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) [2022-03-15 15:23:07,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:07,673 INFO L93 Difference]: Finished difference Result 1593 states and 4759 transitions. [2022-03-15 15:23:07,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:07,674 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:07,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:07,676 INFO L225 Difference]: With dead ends: 1593 [2022-03-15 15:23:07,676 INFO L226 Difference]: Without dead ends: 1491 [2022-03-15 15:23:07,676 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 [2022-03-15 15:23:07,677 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 [2022-03-15 15:23:07,677 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] [2022-03-15 15:23:07,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1491 states. [2022-03-15 15:23:07,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1491 to 1313. [2022-03-15 15:23:07,690 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) [2022-03-15 15:23:07,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1313 states to 1313 states and 3985 transitions. [2022-03-15 15:23:07,692 INFO L78 Accepts]: Start accepts. Automaton has 1313 states and 3985 transitions. Word has length 26 [2022-03-15 15:23:07,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:07,692 INFO L470 AbstractCegarLoop]: Abstraction has 1313 states and 3985 transitions. [2022-03-15 15:23:07,692 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:07,692 INFO L276 IsEmpty]: Start isEmpty. Operand 1313 states and 3985 transitions. [2022-03-15 15:23:07,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:07,694 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:07,694 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:07,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-03-15 15:23:07,694 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:07,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:07,694 INFO L85 PathProgramCache]: Analyzing trace with hash 860903061, now seen corresponding path program 50 times [2022-03-15 15:23:07,694 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:07,694 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941140175] [2022-03-15 15:23:07,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:07,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:07,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:07,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:07,767 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:07,767 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941140175] [2022-03-15 15:23:07,767 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941140175] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:07,768 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:07,768 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:23:07,768 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662299925] [2022-03-15 15:23:07,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:07,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:23:07,768 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:07,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:23:07,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:23:07,768 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) [2022-03-15 15:23:08,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:08,022 INFO L93 Difference]: Finished difference Result 1603 states and 4787 transitions. [2022-03-15 15:23:08,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:23:08,022 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 [2022-03-15 15:23:08,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:08,025 INFO L225 Difference]: With dead ends: 1603 [2022-03-15 15:23:08,025 INFO L226 Difference]: Without dead ends: 1453 [2022-03-15 15:23:08,027 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 [2022-03-15 15:23:08,029 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 58 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:23:08,029 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] [2022-03-15 15:23:08,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1453 states. [2022-03-15 15:23:08,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1453 to 1339. [2022-03-15 15:23:08,045 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) [2022-03-15 15:23:08,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1339 states to 1339 states and 4059 transitions. [2022-03-15 15:23:08,048 INFO L78 Accepts]: Start accepts. Automaton has 1339 states and 4059 transitions. Word has length 26 [2022-03-15 15:23:08,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:08,049 INFO L470 AbstractCegarLoop]: Abstraction has 1339 states and 4059 transitions. [2022-03-15 15:23:08,049 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) [2022-03-15 15:23:08,049 INFO L276 IsEmpty]: Start isEmpty. Operand 1339 states and 4059 transitions. [2022-03-15 15:23:08,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:08,051 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:08,051 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] [2022-03-15 15:23:08,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-03-15 15:23:08,051 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:08,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:08,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1255366057, now seen corresponding path program 51 times [2022-03-15 15:23:08,052 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:08,052 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142768318] [2022-03-15 15:23:08,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:08,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:08,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:08,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:08,135 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:08,135 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142768318] [2022-03-15 15:23:08,135 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142768318] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:08,135 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:08,135 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:08,135 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010263600] [2022-03-15 15:23:08,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:08,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:08,136 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:08,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:08,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:08,136 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) [2022-03-15 15:23:08,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:08,410 INFO L93 Difference]: Finished difference Result 1564 states and 4681 transitions. [2022-03-15 15:23:08,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:08,410 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:08,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:08,412 INFO L225 Difference]: With dead ends: 1564 [2022-03-15 15:23:08,412 INFO L226 Difference]: Without dead ends: 1432 [2022-03-15 15:23:08,412 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 [2022-03-15 15:23:08,413 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 15:23:08,413 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 288 Invalid, 755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 743 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 15:23:08,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2022-03-15 15:23:08,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 1313. [2022-03-15 15:23:08,429 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) [2022-03-15 15:23:08,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1313 states to 1313 states and 3991 transitions. [2022-03-15 15:23:08,432 INFO L78 Accepts]: Start accepts. Automaton has 1313 states and 3991 transitions. Word has length 26 [2022-03-15 15:23:08,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:08,432 INFO L470 AbstractCegarLoop]: Abstraction has 1313 states and 3991 transitions. [2022-03-15 15:23:08,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:08,432 INFO L276 IsEmpty]: Start isEmpty. Operand 1313 states and 3991 transitions. [2022-03-15 15:23:08,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:08,434 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:08,434 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:08,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-03-15 15:23:08,434 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:08,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:08,435 INFO L85 PathProgramCache]: Analyzing trace with hash 158416469, now seen corresponding path program 52 times [2022-03-15 15:23:08,435 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:08,435 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074564155] [2022-03-15 15:23:08,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:08,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:08,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:08,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:08,514 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:08,514 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074564155] [2022-03-15 15:23:08,515 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074564155] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:08,515 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:08,515 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:23:08,515 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202336301] [2022-03-15 15:23:08,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:08,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:23:08,515 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:08,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:23:08,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:23:08,515 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) [2022-03-15 15:23:08,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:08,718 INFO L93 Difference]: Finished difference Result 1533 states and 4603 transitions. [2022-03-15 15:23:08,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:23:08,719 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 [2022-03-15 15:23:08,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:08,721 INFO L225 Difference]: With dead ends: 1533 [2022-03-15 15:23:08,722 INFO L226 Difference]: Without dead ends: 1436 [2022-03-15 15:23:08,722 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 [2022-03-15 15:23:08,722 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 50 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 551 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:23:08,722 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] [2022-03-15 15:23:08,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1436 states. [2022-03-15 15:23:08,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1436 to 1330. [2022-03-15 15:23:08,736 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) [2022-03-15 15:23:08,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1330 states to 1330 states and 4042 transitions. [2022-03-15 15:23:08,738 INFO L78 Accepts]: Start accepts. Automaton has 1330 states and 4042 transitions. Word has length 26 [2022-03-15 15:23:08,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:08,738 INFO L470 AbstractCegarLoop]: Abstraction has 1330 states and 4042 transitions. [2022-03-15 15:23:08,738 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) [2022-03-15 15:23:08,738 INFO L276 IsEmpty]: Start isEmpty. Operand 1330 states and 4042 transitions. [2022-03-15 15:23:08,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:08,740 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:08,740 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:08,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-03-15 15:23:08,740 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:08,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:08,740 INFO L85 PathProgramCache]: Analyzing trace with hash 657842583, now seen corresponding path program 53 times [2022-03-15 15:23:08,740 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:08,740 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932352022] [2022-03-15 15:23:08,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:08,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:08,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:08,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:08,826 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:08,826 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932352022] [2022-03-15 15:23:08,826 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932352022] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:08,826 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:08,826 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:08,826 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543977267] [2022-03-15 15:23:08,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:08,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:08,826 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:08,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:08,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:08,827 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) [2022-03-15 15:23:09,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:09,087 INFO L93 Difference]: Finished difference Result 1540 states and 4628 transitions. [2022-03-15 15:23:09,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:09,087 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:09,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:09,090 INFO L225 Difference]: With dead ends: 1540 [2022-03-15 15:23:09,090 INFO L226 Difference]: Without dead ends: 1461 [2022-03-15 15:23:09,090 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 [2022-03-15 15:23:09,090 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 [2022-03-15 15:23:09,090 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] [2022-03-15 15:23:09,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1461 states. [2022-03-15 15:23:09,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1461 to 1342. [2022-03-15 15:23:09,104 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) [2022-03-15 15:23:09,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1342 states to 1342 states and 4076 transitions. [2022-03-15 15:23:09,106 INFO L78 Accepts]: Start accepts. Automaton has 1342 states and 4076 transitions. Word has length 26 [2022-03-15 15:23:09,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:09,106 INFO L470 AbstractCegarLoop]: Abstraction has 1342 states and 4076 transitions. [2022-03-15 15:23:09,106 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) [2022-03-15 15:23:09,106 INFO L276 IsEmpty]: Start isEmpty. Operand 1342 states and 4076 transitions. [2022-03-15 15:23:09,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:09,108 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:09,108 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] [2022-03-15 15:23:09,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-03-15 15:23:09,108 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:09,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:09,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1053498921, now seen corresponding path program 54 times [2022-03-15 15:23:09,108 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:09,108 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574762115] [2022-03-15 15:23:09,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:09,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:09,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:09,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:09,196 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:09,196 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574762115] [2022-03-15 15:23:09,196 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574762115] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:09,196 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:09,196 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:09,196 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096491449] [2022-03-15 15:23:09,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:09,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:09,197 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:09,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:09,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:09,198 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) [2022-03-15 15:23:09,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:09,502 INFO L93 Difference]: Finished difference Result 1587 states and 4770 transitions. [2022-03-15 15:23:09,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:09,502 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 [2022-03-15 15:23:09,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:09,504 INFO L225 Difference]: With dead ends: 1587 [2022-03-15 15:23:09,504 INFO L226 Difference]: Without dead ends: 1474 [2022-03-15 15:23:09,504 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 [2022-03-15 15:23:09,505 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 15:23:09,505 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 267 Invalid, 752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 740 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 15:23:09,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2022-03-15 15:23:09,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1340. [2022-03-15 15:23:09,518 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) [2022-03-15 15:23:09,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1340 states to 1340 states and 4071 transitions. [2022-03-15 15:23:09,520 INFO L78 Accepts]: Start accepts. Automaton has 1340 states and 4071 transitions. Word has length 26 [2022-03-15 15:23:09,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:09,520 INFO L470 AbstractCegarLoop]: Abstraction has 1340 states and 4071 transitions. [2022-03-15 15:23:09,520 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:09,520 INFO L276 IsEmpty]: Start isEmpty. Operand 1340 states and 4071 transitions. [2022-03-15 15:23:09,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:09,522 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:09,522 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:09,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-03-15 15:23:09,522 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:09,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:09,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1578418549, now seen corresponding path program 55 times [2022-03-15 15:23:09,523 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:09,523 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197031378] [2022-03-15 15:23:09,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:09,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:09,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:09,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:09,615 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:09,615 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197031378] [2022-03-15 15:23:09,615 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197031378] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:09,615 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:09,615 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:09,615 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385407560] [2022-03-15 15:23:09,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:09,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:09,615 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:09,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:09,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:09,615 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) [2022-03-15 15:23:09,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:09,869 INFO L93 Difference]: Finished difference Result 1550 states and 4655 transitions. [2022-03-15 15:23:09,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:09,869 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:09,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:09,871 INFO L225 Difference]: With dead ends: 1550 [2022-03-15 15:23:09,871 INFO L226 Difference]: Without dead ends: 1456 [2022-03-15 15:23:09,871 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 [2022-03-15 15:23:09,871 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 [2022-03-15 15:23:09,872 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] [2022-03-15 15:23:09,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1456 states. [2022-03-15 15:23:09,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1456 to 1323. [2022-03-15 15:23:09,884 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) [2022-03-15 15:23:09,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1323 states to 1323 states and 4022 transitions. [2022-03-15 15:23:09,886 INFO L78 Accepts]: Start accepts. Automaton has 1323 states and 4022 transitions. Word has length 26 [2022-03-15 15:23:09,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:09,886 INFO L470 AbstractCegarLoop]: Abstraction has 1323 states and 4022 transitions. [2022-03-15 15:23:09,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:09,886 INFO L276 IsEmpty]: Start isEmpty. Operand 1323 states and 4022 transitions. [2022-03-15 15:23:09,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:09,888 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:09,888 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] [2022-03-15 15:23:09,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-03-15 15:23:09,888 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:09,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:09,888 INFO L85 PathProgramCache]: Analyzing trace with hash -2044579279, now seen corresponding path program 56 times [2022-03-15 15:23:09,889 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:09,889 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228940857] [2022-03-15 15:23:09,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:09,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:09,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:09,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:09,964 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:09,964 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228940857] [2022-03-15 15:23:09,964 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228940857] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:09,964 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:09,964 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:23:09,964 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778592409] [2022-03-15 15:23:09,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:09,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:23:09,964 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:09,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:23:09,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:23:09,964 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) [2022-03-15 15:23:10,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:10,165 INFO L93 Difference]: Finished difference Result 1614 states and 4865 transitions. [2022-03-15 15:23:10,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:23:10,165 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 [2022-03-15 15:23:10,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:10,167 INFO L225 Difference]: With dead ends: 1614 [2022-03-15 15:23:10,168 INFO L226 Difference]: Without dead ends: 1535 [2022-03-15 15:23:10,168 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 [2022-03-15 15:23:10,168 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 44 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:23:10,168 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] [2022-03-15 15:23:10,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1535 states. [2022-03-15 15:23:10,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1535 to 1344. [2022-03-15 15:23:10,181 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) [2022-03-15 15:23:10,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1344 states to 1344 states and 4084 transitions. [2022-03-15 15:23:10,183 INFO L78 Accepts]: Start accepts. Automaton has 1344 states and 4084 transitions. Word has length 26 [2022-03-15 15:23:10,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:10,183 INFO L470 AbstractCegarLoop]: Abstraction has 1344 states and 4084 transitions. [2022-03-15 15:23:10,183 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) [2022-03-15 15:23:10,183 INFO L276 IsEmpty]: Start isEmpty. Operand 1344 states and 4084 transitions. [2022-03-15 15:23:10,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:10,184 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:10,185 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:10,185 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-03-15 15:23:10,185 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:10,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:10,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1708471687, now seen corresponding path program 57 times [2022-03-15 15:23:10,185 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:10,185 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144455571] [2022-03-15 15:23:10,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:10,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:10,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:10,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:10,255 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:10,255 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144455571] [2022-03-15 15:23:10,255 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144455571] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:10,255 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:10,255 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:23:10,255 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429730918] [2022-03-15 15:23:10,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:10,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:23:10,255 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:10,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:23:10,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:23:10,256 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) [2022-03-15 15:23:10,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:10,456 INFO L93 Difference]: Finished difference Result 1680 states and 5059 transitions. [2022-03-15 15:23:10,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:23:10,456 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 [2022-03-15 15:23:10,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:10,458 INFO L225 Difference]: With dead ends: 1680 [2022-03-15 15:23:10,459 INFO L226 Difference]: Without dead ends: 1585 [2022-03-15 15:23:10,459 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 [2022-03-15 15:23:10,459 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 46 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:23:10,459 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] [2022-03-15 15:23:10,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1585 states. [2022-03-15 15:23:10,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1585 to 1362. [2022-03-15 15:23:10,472 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) [2022-03-15 15:23:10,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1362 states to 1362 states and 4144 transitions. [2022-03-15 15:23:10,475 INFO L78 Accepts]: Start accepts. Automaton has 1362 states and 4144 transitions. Word has length 26 [2022-03-15 15:23:10,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:10,475 INFO L470 AbstractCegarLoop]: Abstraction has 1362 states and 4144 transitions. [2022-03-15 15:23:10,475 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) [2022-03-15 15:23:10,475 INFO L276 IsEmpty]: Start isEmpty. Operand 1362 states and 4144 transitions. [2022-03-15 15:23:10,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:10,477 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:10,477 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] [2022-03-15 15:23:10,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-03-15 15:23:10,478 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:10,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:10,478 INFO L85 PathProgramCache]: Analyzing trace with hash 681459475, now seen corresponding path program 58 times [2022-03-15 15:23:10,478 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:10,478 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612790773] [2022-03-15 15:23:10,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:10,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:10,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:10,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:10,563 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:10,563 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612790773] [2022-03-15 15:23:10,563 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612790773] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:10,563 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:10,563 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:23:10,563 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773012952] [2022-03-15 15:23:10,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:10,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:23:10,563 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:10,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:23:10,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:23:10,564 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) [2022-03-15 15:23:10,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:10,800 INFO L93 Difference]: Finished difference Result 1581 states and 4769 transitions. [2022-03-15 15:23:10,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:23:10,801 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 [2022-03-15 15:23:10,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:10,804 INFO L225 Difference]: With dead ends: 1581 [2022-03-15 15:23:10,804 INFO L226 Difference]: Without dead ends: 1490 [2022-03-15 15:23:10,804 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 [2022-03-15 15:23:10,804 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 45 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:23:10,804 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] [2022-03-15 15:23:10,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1490 states. [2022-03-15 15:23:10,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1490 to 1345. [2022-03-15 15:23:10,821 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) [2022-03-15 15:23:10,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1345 states to 1345 states and 4092 transitions. [2022-03-15 15:23:10,823 INFO L78 Accepts]: Start accepts. Automaton has 1345 states and 4092 transitions. Word has length 26 [2022-03-15 15:23:10,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:10,824 INFO L470 AbstractCegarLoop]: Abstraction has 1345 states and 4092 transitions. [2022-03-15 15:23:10,824 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) [2022-03-15 15:23:10,824 INFO L276 IsEmpty]: Start isEmpty. Operand 1345 states and 4092 transitions. [2022-03-15 15:23:10,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:10,826 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:10,826 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:10,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-03-15 15:23:10,826 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:10,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:10,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1534854127, now seen corresponding path program 59 times [2022-03-15 15:23:10,826 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:10,826 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580970100] [2022-03-15 15:23:10,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:10,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:10,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:10,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:10,919 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:10,919 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580970100] [2022-03-15 15:23:10,919 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580970100] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:10,919 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:10,919 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:10,919 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297791869] [2022-03-15 15:23:10,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:10,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:10,919 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:10,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:10,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:10,920 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) [2022-03-15 15:23:11,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:11,221 INFO L93 Difference]: Finished difference Result 1471 states and 4427 transitions. [2022-03-15 15:23:11,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:11,221 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:11,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:11,223 INFO L225 Difference]: With dead ends: 1471 [2022-03-15 15:23:11,223 INFO L226 Difference]: Without dead ends: 1392 [2022-03-15 15:23:11,223 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 [2022-03-15 15:23:11,224 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 15:23:11,224 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 226 Invalid, 675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 667 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 15:23:11,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1392 states. [2022-03-15 15:23:11,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1392 to 1357. [2022-03-15 15:23:11,237 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) [2022-03-15 15:23:11,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1357 states to 1357 states and 4126 transitions. [2022-03-15 15:23:11,240 INFO L78 Accepts]: Start accepts. Automaton has 1357 states and 4126 transitions. Word has length 26 [2022-03-15 15:23:11,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:11,240 INFO L470 AbstractCegarLoop]: Abstraction has 1357 states and 4126 transitions. [2022-03-15 15:23:11,240 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:11,240 INFO L276 IsEmpty]: Start isEmpty. Operand 1357 states and 4126 transitions. [2022-03-15 15:23:11,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:11,241 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:11,241 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:11,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-03-15 15:23:11,242 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:11,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:11,242 INFO L85 PathProgramCache]: Analyzing trace with hash 823812243, now seen corresponding path program 60 times [2022-03-15 15:23:11,242 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:11,242 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752144613] [2022-03-15 15:23:11,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:11,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:11,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:11,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:11,332 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:11,332 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752144613] [2022-03-15 15:23:11,332 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752144613] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:11,332 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:11,332 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:11,332 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462783053] [2022-03-15 15:23:11,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:11,332 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:11,333 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:11,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:11,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:11,333 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) [2022-03-15 15:23:11,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:11,589 INFO L93 Difference]: Finished difference Result 1521 states and 4567 transitions. [2022-03-15 15:23:11,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:11,590 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 [2022-03-15 15:23:11,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:11,592 INFO L225 Difference]: With dead ends: 1521 [2022-03-15 15:23:11,592 INFO L226 Difference]: Without dead ends: 1426 [2022-03-15 15:23:11,592 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 [2022-03-15 15:23:11,592 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 [2022-03-15 15:23:11,592 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] [2022-03-15 15:23:11,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1426 states. [2022-03-15 15:23:11,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1426 to 1365. [2022-03-15 15:23:11,605 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) [2022-03-15 15:23:11,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1365 states to 1365 states and 4154 transitions. [2022-03-15 15:23:11,607 INFO L78 Accepts]: Start accepts. Automaton has 1365 states and 4154 transitions. Word has length 26 [2022-03-15 15:23:11,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:11,607 INFO L470 AbstractCegarLoop]: Abstraction has 1365 states and 4154 transitions. [2022-03-15 15:23:11,607 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) [2022-03-15 15:23:11,607 INFO L276 IsEmpty]: Start isEmpty. Operand 1365 states and 4154 transitions. [2022-03-15 15:23:11,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:11,609 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:11,609 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:11,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-03-15 15:23:11,609 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:11,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:11,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1191184627, now seen corresponding path program 61 times [2022-03-15 15:23:11,609 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:11,609 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95226127] [2022-03-15 15:23:11,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:11,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:11,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:11,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:11,714 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:11,714 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95226127] [2022-03-15 15:23:11,714 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95226127] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:11,714 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:11,714 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:11,714 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148826737] [2022-03-15 15:23:11,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:11,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:11,715 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:11,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:11,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:11,715 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) [2022-03-15 15:23:12,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:12,007 INFO L93 Difference]: Finished difference Result 1567 states and 4715 transitions. [2022-03-15 15:23:12,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:12,007 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:12,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:12,011 INFO L225 Difference]: With dead ends: 1567 [2022-03-15 15:23:12,011 INFO L226 Difference]: Without dead ends: 1488 [2022-03-15 15:23:12,011 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 [2022-03-15 15:23:12,011 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 15:23:12,012 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 228 Invalid, 665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 657 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 15:23:12,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1488 states. [2022-03-15 15:23:12,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1488 to 1372. [2022-03-15 15:23:12,026 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) [2022-03-15 15:23:12,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1372 states to 1372 states and 4173 transitions. [2022-03-15 15:23:12,028 INFO L78 Accepts]: Start accepts. Automaton has 1372 states and 4173 transitions. Word has length 26 [2022-03-15 15:23:12,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:12,028 INFO L470 AbstractCegarLoop]: Abstraction has 1372 states and 4173 transitions. [2022-03-15 15:23:12,028 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) [2022-03-15 15:23:12,028 INFO L276 IsEmpty]: Start isEmpty. Operand 1372 states and 4173 transitions. [2022-03-15 15:23:12,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:12,030 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:12,030 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:12,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-03-15 15:23:12,030 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:12,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:12,030 INFO L85 PathProgramCache]: Analyzing trace with hash -1124099463, now seen corresponding path program 62 times [2022-03-15 15:23:12,030 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:12,030 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76790814] [2022-03-15 15:23:12,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:12,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:12,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:12,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:12,113 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:12,113 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76790814] [2022-03-15 15:23:12,113 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76790814] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:12,113 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:12,113 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:12,113 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963101337] [2022-03-15 15:23:12,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:12,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:12,114 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:12,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:12,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:12,114 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) [2022-03-15 15:23:12,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:12,357 INFO L93 Difference]: Finished difference Result 1591 states and 4779 transitions. [2022-03-15 15:23:12,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:12,357 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:12,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:12,359 INFO L225 Difference]: With dead ends: 1591 [2022-03-15 15:23:12,359 INFO L226 Difference]: Without dead ends: 1496 [2022-03-15 15:23:12,360 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:12,360 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 [2022-03-15 15:23:12,360 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] [2022-03-15 15:23:12,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1496 states. [2022-03-15 15:23:12,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1496 to 1377. [2022-03-15 15:23:12,375 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) [2022-03-15 15:23:12,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1377 states to 1377 states and 4190 transitions. [2022-03-15 15:23:12,377 INFO L78 Accepts]: Start accepts. Automaton has 1377 states and 4190 transitions. Word has length 26 [2022-03-15 15:23:12,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:12,377 INFO L470 AbstractCegarLoop]: Abstraction has 1377 states and 4190 transitions. [2022-03-15 15:23:12,377 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) [2022-03-15 15:23:12,377 INFO L276 IsEmpty]: Start isEmpty. Operand 1377 states and 4190 transitions. [2022-03-15 15:23:12,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:12,379 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:12,379 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] [2022-03-15 15:23:12,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-03-15 15:23:12,380 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:12,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:12,380 INFO L85 PathProgramCache]: Analyzing trace with hash -478678661, now seen corresponding path program 63 times [2022-03-15 15:23:12,380 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:12,380 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552865247] [2022-03-15 15:23:12,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:12,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:12,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:12,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:12,477 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:12,477 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552865247] [2022-03-15 15:23:12,477 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552865247] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:12,477 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:12,477 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:12,477 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471093626] [2022-03-15 15:23:12,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:12,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:12,477 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:12,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:12,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:12,478 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) [2022-03-15 15:23:12,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:12,740 INFO L93 Difference]: Finished difference Result 1579 states and 4742 transitions. [2022-03-15 15:23:12,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:12,741 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:12,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:12,743 INFO L225 Difference]: With dead ends: 1579 [2022-03-15 15:23:12,743 INFO L226 Difference]: Without dead ends: 1491 [2022-03-15 15:23:12,743 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:12,743 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 15:23:12,744 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 232 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 707 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 15:23:12,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1491 states. [2022-03-15 15:23:12,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1491 to 1383. [2022-03-15 15:23:12,757 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) [2022-03-15 15:23:12,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1383 states to 1383 states and 4209 transitions. [2022-03-15 15:23:12,759 INFO L78 Accepts]: Start accepts. Automaton has 1383 states and 4209 transitions. Word has length 26 [2022-03-15 15:23:12,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:12,759 INFO L470 AbstractCegarLoop]: Abstraction has 1383 states and 4209 transitions. [2022-03-15 15:23:12,759 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) [2022-03-15 15:23:12,759 INFO L276 IsEmpty]: Start isEmpty. Operand 1383 states and 4209 transitions. [2022-03-15 15:23:12,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:12,761 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:12,761 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] [2022-03-15 15:23:12,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-03-15 15:23:12,761 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:12,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:12,762 INFO L85 PathProgramCache]: Analyzing trace with hash -390741927, now seen corresponding path program 64 times [2022-03-15 15:23:12,762 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:12,762 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835012613] [2022-03-15 15:23:12,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:12,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:12,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:12,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:12,841 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:12,841 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835012613] [2022-03-15 15:23:12,841 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835012613] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:12,841 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:12,841 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:12,841 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936794337] [2022-03-15 15:23:12,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:12,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:12,841 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:12,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:12,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:12,841 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) [2022-03-15 15:23:13,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:13,080 INFO L93 Difference]: Finished difference Result 1558 states and 4681 transitions. [2022-03-15 15:23:13,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:13,080 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:13,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:13,083 INFO L225 Difference]: With dead ends: 1558 [2022-03-15 15:23:13,083 INFO L226 Difference]: Without dead ends: 1464 [2022-03-15 15:23:13,083 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 [2022-03-15 15:23:13,083 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 [2022-03-15 15:23:13,083 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] [2022-03-15 15:23:13,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1464 states. [2022-03-15 15:23:13,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1464 to 1385. [2022-03-15 15:23:13,097 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) [2022-03-15 15:23:13,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1385 states to 1385 states and 4217 transitions. [2022-03-15 15:23:13,100 INFO L78 Accepts]: Start accepts. Automaton has 1385 states and 4217 transitions. Word has length 26 [2022-03-15 15:23:13,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:13,100 INFO L470 AbstractCegarLoop]: Abstraction has 1385 states and 4217 transitions. [2022-03-15 15:23:13,100 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:13,100 INFO L276 IsEmpty]: Start isEmpty. Operand 1385 states and 4217 transitions. [2022-03-15 15:23:13,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:13,101 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:13,102 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:13,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-03-15 15:23:13,102 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:13,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:13,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1741662093, now seen corresponding path program 65 times [2022-03-15 15:23:13,102 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:13,102 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121736335] [2022-03-15 15:23:13,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:13,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:13,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:13,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:13,185 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:13,185 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121736335] [2022-03-15 15:23:13,185 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121736335] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:13,185 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:13,185 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:13,186 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406856014] [2022-03-15 15:23:13,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:13,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:13,186 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:13,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:13,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:13,186 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) [2022-03-15 15:23:13,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:13,438 INFO L93 Difference]: Finished difference Result 1534 states and 4620 transitions. [2022-03-15 15:23:13,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:13,438 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:13,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:13,440 INFO L225 Difference]: With dead ends: 1534 [2022-03-15 15:23:13,440 INFO L226 Difference]: Without dead ends: 1455 [2022-03-15 15:23:13,440 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 [2022-03-15 15:23:13,441 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 [2022-03-15 15:23:13,441 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] [2022-03-15 15:23:13,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1455 states. [2022-03-15 15:23:13,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1455 to 1391. [2022-03-15 15:23:13,454 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) [2022-03-15 15:23:13,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1391 states to 1391 states and 4240 transitions. [2022-03-15 15:23:13,456 INFO L78 Accepts]: Start accepts. Automaton has 1391 states and 4240 transitions. Word has length 26 [2022-03-15 15:23:13,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:13,456 INFO L470 AbstractCegarLoop]: Abstraction has 1391 states and 4240 transitions. [2022-03-15 15:23:13,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:13,456 INFO L276 IsEmpty]: Start isEmpty. Operand 1391 states and 4240 transitions. [2022-03-15 15:23:13,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:13,458 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:13,458 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:13,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-03-15 15:23:13,458 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:13,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:13,458 INFO L85 PathProgramCache]: Analyzing trace with hash 617004277, now seen corresponding path program 66 times [2022-03-15 15:23:13,458 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:13,459 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138529726] [2022-03-15 15:23:13,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:13,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:13,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:13,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:13,556 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:13,556 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138529726] [2022-03-15 15:23:13,556 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138529726] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:13,556 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:13,556 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:13,557 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347976589] [2022-03-15 15:23:13,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:13,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:13,557 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:13,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:13,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:13,557 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) [2022-03-15 15:23:13,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:13,825 INFO L93 Difference]: Finished difference Result 1569 states and 4729 transitions. [2022-03-15 15:23:13,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:13,826 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:13,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:13,828 INFO L225 Difference]: With dead ends: 1569 [2022-03-15 15:23:13,828 INFO L226 Difference]: Without dead ends: 1474 [2022-03-15 15:23:13,828 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 [2022-03-15 15:23:13,828 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 15:23:13,828 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 230 Invalid, 727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 719 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 15:23:13,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2022-03-15 15:23:13,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1400. [2022-03-15 15:23:13,841 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) [2022-03-15 15:23:13,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1400 states to 1400 states and 4271 transitions. [2022-03-15 15:23:13,843 INFO L78 Accepts]: Start accepts. Automaton has 1400 states and 4271 transitions. Word has length 26 [2022-03-15 15:23:13,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:13,843 INFO L470 AbstractCegarLoop]: Abstraction has 1400 states and 4271 transitions. [2022-03-15 15:23:13,843 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:13,843 INFO L276 IsEmpty]: Start isEmpty. Operand 1400 states and 4271 transitions. [2022-03-15 15:23:13,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:13,845 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:13,845 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] [2022-03-15 15:23:13,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-03-15 15:23:13,845 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:13,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:13,845 INFO L85 PathProgramCache]: Analyzing trace with hash -40159245, now seen corresponding path program 67 times [2022-03-15 15:23:13,845 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:13,846 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265483890] [2022-03-15 15:23:13,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:13,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:13,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:13,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:13,948 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:13,948 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265483890] [2022-03-15 15:23:13,948 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265483890] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:13,948 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:13,948 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:13,948 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688563261] [2022-03-15 15:23:13,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:13,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:13,948 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:13,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:13,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:13,949 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) [2022-03-15 15:23:14,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:14,203 INFO L93 Difference]: Finished difference Result 1559 states and 4705 transitions. [2022-03-15 15:23:14,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:14,203 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:14,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:14,205 INFO L225 Difference]: With dead ends: 1559 [2022-03-15 15:23:14,205 INFO L226 Difference]: Without dead ends: 1474 [2022-03-15 15:23:14,205 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 [2022-03-15 15:23:14,205 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 [2022-03-15 15:23:14,206 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] [2022-03-15 15:23:14,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2022-03-15 15:23:14,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1404. [2022-03-15 15:23:14,219 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) [2022-03-15 15:23:14,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 4280 transitions. [2022-03-15 15:23:14,221 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 4280 transitions. Word has length 26 [2022-03-15 15:23:14,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:14,221 INFO L470 AbstractCegarLoop]: Abstraction has 1404 states and 4280 transitions. [2022-03-15 15:23:14,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:14,222 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 4280 transitions. [2022-03-15 15:23:14,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:14,223 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:14,223 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:14,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-03-15 15:23:14,224 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:14,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:14,224 INFO L85 PathProgramCache]: Analyzing trace with hash -1368725167, now seen corresponding path program 68 times [2022-03-15 15:23:14,224 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:14,224 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595682122] [2022-03-15 15:23:14,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:14,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:14,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:14,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:14,306 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:14,306 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595682122] [2022-03-15 15:23:14,306 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595682122] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:14,306 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:14,306 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:14,306 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890820685] [2022-03-15 15:23:14,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:14,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:14,307 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:14,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:14,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:14,307 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) [2022-03-15 15:23:14,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:14,566 INFO L93 Difference]: Finished difference Result 1599 states and 4818 transitions. [2022-03-15 15:23:14,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:14,567 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:14,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:14,569 INFO L225 Difference]: With dead ends: 1599 [2022-03-15 15:23:14,569 INFO L226 Difference]: Without dead ends: 1496 [2022-03-15 15:23:14,569 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 [2022-03-15 15:23:14,569 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 [2022-03-15 15:23:14,569 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] [2022-03-15 15:23:14,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1496 states. [2022-03-15 15:23:14,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1496 to 1402. [2022-03-15 15:23:14,582 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) [2022-03-15 15:23:14,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1402 states to 1402 states and 4280 transitions. [2022-03-15 15:23:14,584 INFO L78 Accepts]: Start accepts. Automaton has 1402 states and 4280 transitions. Word has length 26 [2022-03-15 15:23:14,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:14,584 INFO L470 AbstractCegarLoop]: Abstraction has 1402 states and 4280 transitions. [2022-03-15 15:23:14,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:14,584 INFO L276 IsEmpty]: Start isEmpty. Operand 1402 states and 4280 transitions. [2022-03-15 15:23:14,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:14,586 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:14,586 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:14,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-03-15 15:23:14,586 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:14,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:14,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1591364523, now seen corresponding path program 69 times [2022-03-15 15:23:14,586 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:14,586 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543116169] [2022-03-15 15:23:14,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:14,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:14,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:14,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:14,667 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:14,667 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543116169] [2022-03-15 15:23:14,667 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543116169] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:14,667 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:14,667 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:14,668 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784320299] [2022-03-15 15:23:14,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:14,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:14,668 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:14,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:14,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:14,668 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) [2022-03-15 15:23:14,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:14,911 INFO L93 Difference]: Finished difference Result 1713 states and 5194 transitions. [2022-03-15 15:23:14,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:14,911 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:14,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:14,914 INFO L225 Difference]: With dead ends: 1713 [2022-03-15 15:23:14,914 INFO L226 Difference]: Without dead ends: 1634 [2022-03-15 15:23:14,914 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:14,914 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 [2022-03-15 15:23:14,914 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] [2022-03-15 15:23:14,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1634 states. [2022-03-15 15:23:14,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1634 to 1411. [2022-03-15 15:23:14,927 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) [2022-03-15 15:23:14,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1411 states to 1411 states and 4315 transitions. [2022-03-15 15:23:14,929 INFO L78 Accepts]: Start accepts. Automaton has 1411 states and 4315 transitions. Word has length 26 [2022-03-15 15:23:14,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:14,929 INFO L470 AbstractCegarLoop]: Abstraction has 1411 states and 4315 transitions. [2022-03-15 15:23:14,929 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) [2022-03-15 15:23:14,929 INFO L276 IsEmpty]: Start isEmpty. Operand 1411 states and 4315 transitions. [2022-03-15 15:23:14,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:14,931 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:14,931 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:14,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-03-15 15:23:14,931 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:14,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:14,932 INFO L85 PathProgramCache]: Analyzing trace with hash 388318683, now seen corresponding path program 70 times [2022-03-15 15:23:14,932 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:14,932 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248983389] [2022-03-15 15:23:14,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:14,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:14,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:15,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:15,014 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:15,014 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248983389] [2022-03-15 15:23:15,014 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248983389] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:15,014 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:15,014 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:15,014 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428645015] [2022-03-15 15:23:15,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:15,014 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:15,014 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:15,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:15,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:15,015 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) [2022-03-15 15:23:15,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:15,256 INFO L93 Difference]: Finished difference Result 1734 states and 5229 transitions. [2022-03-15 15:23:15,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:15,256 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 [2022-03-15 15:23:15,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:15,259 INFO L225 Difference]: With dead ends: 1734 [2022-03-15 15:23:15,259 INFO L226 Difference]: Without dead ends: 1639 [2022-03-15 15:23:15,259 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:15,259 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 [2022-03-15 15:23:15,259 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] [2022-03-15 15:23:15,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1639 states. [2022-03-15 15:23:15,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1639 to 1415. [2022-03-15 15:23:15,272 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) [2022-03-15 15:23:15,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1415 states to 1415 states and 4326 transitions. [2022-03-15 15:23:15,275 INFO L78 Accepts]: Start accepts. Automaton has 1415 states and 4326 transitions. Word has length 26 [2022-03-15 15:23:15,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:15,275 INFO L470 AbstractCegarLoop]: Abstraction has 1415 states and 4326 transitions. [2022-03-15 15:23:15,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:15,275 INFO L276 IsEmpty]: Start isEmpty. Operand 1415 states and 4326 transitions. [2022-03-15 15:23:15,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:15,276 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:15,277 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:15,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-03-15 15:23:15,277 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:15,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:15,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1311458227, now seen corresponding path program 71 times [2022-03-15 15:23:15,277 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:15,277 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955107640] [2022-03-15 15:23:15,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:15,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:15,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:15,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:15,353 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:15,353 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955107640] [2022-03-15 15:23:15,353 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955107640] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:15,353 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:15,353 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:15,353 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671863744] [2022-03-15 15:23:15,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:15,353 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:15,353 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:15,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:15,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:15,354 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) [2022-03-15 15:23:15,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:15,596 INFO L93 Difference]: Finished difference Result 1641 states and 4975 transitions. [2022-03-15 15:23:15,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:15,597 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 [2022-03-15 15:23:15,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:15,599 INFO L225 Difference]: With dead ends: 1641 [2022-03-15 15:23:15,599 INFO L226 Difference]: Without dead ends: 1551 [2022-03-15 15:23:15,599 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 [2022-03-15 15:23:15,599 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 [2022-03-15 15:23:15,600 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] [2022-03-15 15:23:15,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1551 states. [2022-03-15 15:23:15,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1551 to 1409. [2022-03-15 15:23:15,612 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) [2022-03-15 15:23:15,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1409 states to 1409 states and 4311 transitions. [2022-03-15 15:23:15,614 INFO L78 Accepts]: Start accepts. Automaton has 1409 states and 4311 transitions. Word has length 26 [2022-03-15 15:23:15,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:15,614 INFO L470 AbstractCegarLoop]: Abstraction has 1409 states and 4311 transitions. [2022-03-15 15:23:15,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:15,614 INFO L276 IsEmpty]: Start isEmpty. Operand 1409 states and 4311 transitions. [2022-03-15 15:23:15,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:15,616 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:15,616 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] [2022-03-15 15:23:15,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-03-15 15:23:15,616 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:15,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:15,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1906106807, now seen corresponding path program 72 times [2022-03-15 15:23:15,616 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:15,616 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798634004] [2022-03-15 15:23:15,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:15,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:15,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:15,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:15,700 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:15,700 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798634004] [2022-03-15 15:23:15,701 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798634004] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:15,701 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:15,701 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:23:15,701 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927775804] [2022-03-15 15:23:15,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:15,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:23:15,701 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:15,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:23:15,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:23:15,701 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) [2022-03-15 15:23:15,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:15,917 INFO L93 Difference]: Finished difference Result 1735 states and 5254 transitions. [2022-03-15 15:23:15,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:23:15,918 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 [2022-03-15 15:23:15,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:15,921 INFO L225 Difference]: With dead ends: 1735 [2022-03-15 15:23:15,921 INFO L226 Difference]: Without dead ends: 1656 [2022-03-15 15:23:15,922 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 [2022-03-15 15:23:15,922 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 47 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:23:15,922 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] [2022-03-15 15:23:15,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1656 states. [2022-03-15 15:23:15,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1656 to 1445. [2022-03-15 15:23:15,940 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) [2022-03-15 15:23:15,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 4418 transitions. [2022-03-15 15:23:15,943 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 4418 transitions. Word has length 26 [2022-03-15 15:23:15,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:15,943 INFO L470 AbstractCegarLoop]: Abstraction has 1445 states and 4418 transitions. [2022-03-15 15:23:15,943 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) [2022-03-15 15:23:15,943 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 4418 transitions. [2022-03-15 15:23:15,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:15,945 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:15,945 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:15,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-03-15 15:23:15,945 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:15,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:15,946 INFO L85 PathProgramCache]: Analyzing trace with hash -30194119, now seen corresponding path program 73 times [2022-03-15 15:23:15,946 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:15,946 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527909738] [2022-03-15 15:23:15,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:15,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:15,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:16,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:16,041 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:16,041 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527909738] [2022-03-15 15:23:16,041 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527909738] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:16,041 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:16,041 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:16,041 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705614386] [2022-03-15 15:23:16,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:16,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:16,041 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:16,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:16,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:16,042 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) [2022-03-15 15:23:16,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:16,303 INFO L93 Difference]: Finished difference Result 1792 states and 5392 transitions. [2022-03-15 15:23:16,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:16,303 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 [2022-03-15 15:23:16,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:16,305 INFO L225 Difference]: With dead ends: 1792 [2022-03-15 15:23:16,305 INFO L226 Difference]: Without dead ends: 1611 [2022-03-15 15:23:16,306 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 [2022-03-15 15:23:16,306 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 15:23:16,306 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 287 Invalid, 710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 700 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 15:23:16,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1611 states. [2022-03-15 15:23:16,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1611 to 1435. [2022-03-15 15:23:16,319 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) [2022-03-15 15:23:16,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1435 states to 1435 states and 4394 transitions. [2022-03-15 15:23:16,321 INFO L78 Accepts]: Start accepts. Automaton has 1435 states and 4394 transitions. Word has length 26 [2022-03-15 15:23:16,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:16,322 INFO L470 AbstractCegarLoop]: Abstraction has 1435 states and 4394 transitions. [2022-03-15 15:23:16,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:16,322 INFO L276 IsEmpty]: Start isEmpty. Operand 1435 states and 4394 transitions. [2022-03-15 15:23:16,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:16,323 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:16,323 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:16,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-03-15 15:23:16,324 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:16,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:16,324 INFO L85 PathProgramCache]: Analyzing trace with hash 188366037, now seen corresponding path program 74 times [2022-03-15 15:23:16,324 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:16,324 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849006488] [2022-03-15 15:23:16,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:16,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:16,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:16,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:16,412 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:16,412 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849006488] [2022-03-15 15:23:16,412 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849006488] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:16,412 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:16,412 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:16,412 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359415794] [2022-03-15 15:23:16,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:16,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:16,412 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:16,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:16,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:16,413 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) [2022-03-15 15:23:16,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:16,656 INFO L93 Difference]: Finished difference Result 1663 states and 5025 transitions. [2022-03-15 15:23:16,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:16,656 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 [2022-03-15 15:23:16,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:16,659 INFO L225 Difference]: With dead ends: 1663 [2022-03-15 15:23:16,659 INFO L226 Difference]: Without dead ends: 1584 [2022-03-15 15:23:16,659 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 [2022-03-15 15:23:16,659 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 [2022-03-15 15:23:16,659 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] [2022-03-15 15:23:16,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1584 states. [2022-03-15 15:23:16,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1584 to 1437. [2022-03-15 15:23:16,672 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) [2022-03-15 15:23:16,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1437 states to 1437 states and 4401 transitions. [2022-03-15 15:23:16,674 INFO L78 Accepts]: Start accepts. Automaton has 1437 states and 4401 transitions. Word has length 26 [2022-03-15 15:23:16,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:16,674 INFO L470 AbstractCegarLoop]: Abstraction has 1437 states and 4401 transitions. [2022-03-15 15:23:16,674 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) [2022-03-15 15:23:16,674 INFO L276 IsEmpty]: Start isEmpty. Operand 1437 states and 4401 transitions. [2022-03-15 15:23:16,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:16,676 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:16,676 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] [2022-03-15 15:23:16,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-03-15 15:23:16,676 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:16,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:16,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1747934889, now seen corresponding path program 75 times [2022-03-15 15:23:16,677 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:16,677 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108291158] [2022-03-15 15:23:16,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:16,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:16,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:16,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:16,754 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:16,754 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108291158] [2022-03-15 15:23:16,754 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108291158] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:16,754 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:16,755 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:16,755 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710874929] [2022-03-15 15:23:16,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:16,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:16,755 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:16,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:16,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:16,755 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) [2022-03-15 15:23:17,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:17,020 INFO L93 Difference]: Finished difference Result 1626 states and 4884 transitions. [2022-03-15 15:23:17,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:17,020 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:17,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:17,023 INFO L225 Difference]: With dead ends: 1626 [2022-03-15 15:23:17,023 INFO L226 Difference]: Without dead ends: 1531 [2022-03-15 15:23:17,023 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:17,023 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 15:23:17,023 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 260 Invalid, 729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 721 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 15:23:17,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1531 states. [2022-03-15 15:23:17,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1531 to 1451. [2022-03-15 15:23:17,036 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) [2022-03-15 15:23:17,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1451 states to 1451 states and 4438 transitions. [2022-03-15 15:23:17,038 INFO L78 Accepts]: Start accepts. Automaton has 1451 states and 4438 transitions. Word has length 26 [2022-03-15 15:23:17,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:17,038 INFO L470 AbstractCegarLoop]: Abstraction has 1451 states and 4438 transitions. [2022-03-15 15:23:17,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:17,038 INFO L276 IsEmpty]: Start isEmpty. Operand 1451 states and 4438 transitions. [2022-03-15 15:23:17,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:17,040 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:17,040 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:17,040 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-03-15 15:23:17,040 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:17,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:17,040 INFO L85 PathProgramCache]: Analyzing trace with hash 599120701, now seen corresponding path program 76 times [2022-03-15 15:23:17,041 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:17,041 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178438670] [2022-03-15 15:23:17,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:17,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:17,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:17,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:17,114 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:17,114 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178438670] [2022-03-15 15:23:17,114 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178438670] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:17,114 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:17,114 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:23:17,114 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090632032] [2022-03-15 15:23:17,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:17,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:23:17,114 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:17,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:23:17,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:23:17,114 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) [2022-03-15 15:23:17,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:17,308 INFO L93 Difference]: Finished difference Result 1742 states and 5269 transitions. [2022-03-15 15:23:17,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:23:17,308 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 [2022-03-15 15:23:17,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:17,311 INFO L225 Difference]: With dead ends: 1742 [2022-03-15 15:23:17,311 INFO L226 Difference]: Without dead ends: 1653 [2022-03-15 15:23:17,311 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 [2022-03-15 15:23:17,311 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 45 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:23:17,311 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] [2022-03-15 15:23:17,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1653 states. [2022-03-15 15:23:17,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1653 to 1461. [2022-03-15 15:23:17,327 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) [2022-03-15 15:23:17,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1461 states to 1461 states and 4467 transitions. [2022-03-15 15:23:17,330 INFO L78 Accepts]: Start accepts. Automaton has 1461 states and 4467 transitions. Word has length 26 [2022-03-15 15:23:17,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:17,330 INFO L470 AbstractCegarLoop]: Abstraction has 1461 states and 4467 transitions. [2022-03-15 15:23:17,330 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) [2022-03-15 15:23:17,330 INFO L276 IsEmpty]: Start isEmpty. Operand 1461 states and 4467 transitions. [2022-03-15 15:23:17,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:17,332 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:17,332 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] [2022-03-15 15:23:17,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-03-15 15:23:17,333 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:17,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:17,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1244541503, now seen corresponding path program 77 times [2022-03-15 15:23:17,333 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:17,333 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608809948] [2022-03-15 15:23:17,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:17,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:17,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:17,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:17,415 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:17,415 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608809948] [2022-03-15 15:23:17,415 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608809948] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:17,415 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:17,415 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:17,415 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179571217] [2022-03-15 15:23:17,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:17,415 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:17,415 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:17,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:17,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:17,416 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) [2022-03-15 15:23:17,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:17,675 INFO L93 Difference]: Finished difference Result 1678 states and 5043 transitions. [2022-03-15 15:23:17,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:17,676 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:17,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:17,678 INFO L225 Difference]: With dead ends: 1678 [2022-03-15 15:23:17,678 INFO L226 Difference]: Without dead ends: 1590 [2022-03-15 15:23:17,678 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:17,679 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 [2022-03-15 15:23:17,679 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] [2022-03-15 15:23:17,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1590 states. [2022-03-15 15:23:17,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1590 to 1461. [2022-03-15 15:23:17,692 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) [2022-03-15 15:23:17,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1461 states to 1461 states and 4467 transitions. [2022-03-15 15:23:17,695 INFO L78 Accepts]: Start accepts. Automaton has 1461 states and 4467 transitions. Word has length 26 [2022-03-15 15:23:17,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:17,695 INFO L470 AbstractCegarLoop]: Abstraction has 1461 states and 4467 transitions. [2022-03-15 15:23:17,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:17,695 INFO L276 IsEmpty]: Start isEmpty. Operand 1461 states and 4467 transitions. [2022-03-15 15:23:17,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:17,697 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:17,697 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:17,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-03-15 15:23:17,697 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:17,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:17,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1332478237, now seen corresponding path program 78 times [2022-03-15 15:23:17,697 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:17,697 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402219584] [2022-03-15 15:23:17,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:17,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:17,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:17,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:17,774 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:17,774 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402219584] [2022-03-15 15:23:17,774 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402219584] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:17,774 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:17,774 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:17,774 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467477967] [2022-03-15 15:23:17,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:17,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:17,775 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:17,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:17,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:17,775 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) [2022-03-15 15:23:18,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:18,011 INFO L93 Difference]: Finished difference Result 1816 states and 5475 transitions. [2022-03-15 15:23:18,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:18,011 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:18,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:18,013 INFO L225 Difference]: With dead ends: 1816 [2022-03-15 15:23:18,013 INFO L226 Difference]: Without dead ends: 1722 [2022-03-15 15:23:18,014 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:18,014 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 [2022-03-15 15:23:18,014 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] [2022-03-15 15:23:18,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1722 states. [2022-03-15 15:23:18,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1722 to 1485. [2022-03-15 15:23:18,027 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) [2022-03-15 15:23:18,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1485 states to 1485 states and 4546 transitions. [2022-03-15 15:23:18,030 INFO L78 Accepts]: Start accepts. Automaton has 1485 states and 4546 transitions. Word has length 26 [2022-03-15 15:23:18,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:18,030 INFO L470 AbstractCegarLoop]: Abstraction has 1485 states and 4546 transitions. [2022-03-15 15:23:18,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:18,030 INFO L276 IsEmpty]: Start isEmpty. Operand 1485 states and 4546 transitions. [2022-03-15 15:23:18,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:18,031 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:18,031 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:18,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-03-15 15:23:18,032 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:18,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:18,032 INFO L85 PathProgramCache]: Analyzing trace with hash -430758349, now seen corresponding path program 79 times [2022-03-15 15:23:18,032 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:18,032 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556424059] [2022-03-15 15:23:18,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:18,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:18,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:18,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:18,102 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:18,102 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556424059] [2022-03-15 15:23:18,103 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556424059] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:18,103 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:18,103 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:23:18,103 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375201193] [2022-03-15 15:23:18,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:18,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:23:18,103 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:18,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:23:18,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:23:18,103 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) [2022-03-15 15:23:18,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:18,330 INFO L93 Difference]: Finished difference Result 1851 states and 5576 transitions. [2022-03-15 15:23:18,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:23:18,331 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 [2022-03-15 15:23:18,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:18,333 INFO L225 Difference]: With dead ends: 1851 [2022-03-15 15:23:18,333 INFO L226 Difference]: Without dead ends: 1679 [2022-03-15 15:23:18,333 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 [2022-03-15 15:23:18,334 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 57 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 571 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:23:18,334 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] [2022-03-15 15:23:18,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1679 states. [2022-03-15 15:23:18,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1679 to 1453. [2022-03-15 15:23:18,347 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) [2022-03-15 15:23:18,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1453 states to 1453 states and 4436 transitions. [2022-03-15 15:23:18,349 INFO L78 Accepts]: Start accepts. Automaton has 1453 states and 4436 transitions. Word has length 26 [2022-03-15 15:23:18,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:18,349 INFO L470 AbstractCegarLoop]: Abstraction has 1453 states and 4436 transitions. [2022-03-15 15:23:18,349 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) [2022-03-15 15:23:18,349 INFO L276 IsEmpty]: Start isEmpty. Operand 1453 states and 4436 transitions. [2022-03-15 15:23:18,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:18,351 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:18,351 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:18,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-03-15 15:23:18,351 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:18,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:18,352 INFO L85 PathProgramCache]: Analyzing trace with hash -2010189995, now seen corresponding path program 80 times [2022-03-15 15:23:18,352 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:18,352 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329459673] [2022-03-15 15:23:18,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:18,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:18,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:18,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:18,438 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:18,438 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329459673] [2022-03-15 15:23:18,438 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329459673] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:18,438 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:18,438 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:18,438 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512253550] [2022-03-15 15:23:18,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:18,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:18,438 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:18,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:18,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:18,439 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) [2022-03-15 15:23:18,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:18,699 INFO L93 Difference]: Finished difference Result 1732 states and 5178 transitions. [2022-03-15 15:23:18,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:18,700 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:18,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:18,702 INFO L225 Difference]: With dead ends: 1732 [2022-03-15 15:23:18,703 INFO L226 Difference]: Without dead ends: 1593 [2022-03-15 15:23:18,703 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 [2022-03-15 15:23:18,703 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 [2022-03-15 15:23:18,703 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] [2022-03-15 15:23:18,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1593 states. [2022-03-15 15:23:18,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1593 to 1443. [2022-03-15 15:23:18,716 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) [2022-03-15 15:23:18,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1443 states to 1443 states and 4396 transitions. [2022-03-15 15:23:18,718 INFO L78 Accepts]: Start accepts. Automaton has 1443 states and 4396 transitions. Word has length 26 [2022-03-15 15:23:18,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:18,718 INFO L470 AbstractCegarLoop]: Abstraction has 1443 states and 4396 transitions. [2022-03-15 15:23:18,719 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:18,719 INFO L276 IsEmpty]: Start isEmpty. Operand 1443 states and 4396 transitions. [2022-03-15 15:23:18,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:18,721 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:18,721 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] [2022-03-15 15:23:18,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-03-15 15:23:18,721 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:18,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:18,722 INFO L85 PathProgramCache]: Analyzing trace with hash -209972843, now seen corresponding path program 81 times [2022-03-15 15:23:18,722 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:18,722 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097513496] [2022-03-15 15:23:18,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:18,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:18,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:18,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:18,794 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:18,794 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097513496] [2022-03-15 15:23:18,794 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097513496] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:18,794 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:18,794 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:23:18,794 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859414233] [2022-03-15 15:23:18,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:18,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:23:18,794 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:18,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:23:18,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:23:18,795 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) [2022-03-15 15:23:18,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:18,992 INFO L93 Difference]: Finished difference Result 1745 states and 5234 transitions. [2022-03-15 15:23:18,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:23:18,992 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 [2022-03-15 15:23:18,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:18,995 INFO L225 Difference]: With dead ends: 1745 [2022-03-15 15:23:18,995 INFO L226 Difference]: Without dead ends: 1660 [2022-03-15 15:23:18,995 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 [2022-03-15 15:23:18,995 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 48 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:23:18,995 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] [2022-03-15 15:23:18,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1660 states. [2022-03-15 15:23:19,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1660 to 1481. [2022-03-15 15:23:19,009 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) [2022-03-15 15:23:19,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1481 states to 1481 states and 4515 transitions. [2022-03-15 15:23:19,011 INFO L78 Accepts]: Start accepts. Automaton has 1481 states and 4515 transitions. Word has length 26 [2022-03-15 15:23:19,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:19,012 INFO L470 AbstractCegarLoop]: Abstraction has 1481 states and 4515 transitions. [2022-03-15 15:23:19,012 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) [2022-03-15 15:23:19,012 INFO L276 IsEmpty]: Start isEmpty. Operand 1481 states and 4515 transitions. [2022-03-15 15:23:19,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:19,013 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:19,013 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] [2022-03-15 15:23:19,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-03-15 15:23:19,014 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:19,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:19,014 INFO L85 PathProgramCache]: Analyzing trace with hash -2146273769, now seen corresponding path program 82 times [2022-03-15 15:23:19,014 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:19,014 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877861882] [2022-03-15 15:23:19,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:19,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:19,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:19,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:19,089 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:19,089 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877861882] [2022-03-15 15:23:19,089 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877861882] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:19,089 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:19,089 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:19,089 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025763711] [2022-03-15 15:23:19,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:19,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:19,089 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:19,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:19,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:19,089 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) [2022-03-15 15:23:19,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:19,339 INFO L93 Difference]: Finished difference Result 1788 states and 5355 transitions. [2022-03-15 15:23:19,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:19,339 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:19,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:19,342 INFO L225 Difference]: With dead ends: 1788 [2022-03-15 15:23:19,342 INFO L226 Difference]: Without dead ends: 1595 [2022-03-15 15:23:19,342 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:19,342 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 [2022-03-15 15:23:19,342 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] [2022-03-15 15:23:19,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1595 states. [2022-03-15 15:23:19,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1595 to 1441. [2022-03-15 15:23:19,358 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) [2022-03-15 15:23:19,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1441 states to 1441 states and 4389 transitions. [2022-03-15 15:23:19,361 INFO L78 Accepts]: Start accepts. Automaton has 1441 states and 4389 transitions. Word has length 26 [2022-03-15 15:23:19,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:19,361 INFO L470 AbstractCegarLoop]: Abstraction has 1441 states and 4389 transitions. [2022-03-15 15:23:19,361 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) [2022-03-15 15:23:19,361 INFO L276 IsEmpty]: Start isEmpty. Operand 1441 states and 4389 transitions. [2022-03-15 15:23:19,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:19,363 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:19,363 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] [2022-03-15 15:23:19,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-03-15 15:23:19,363 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:19,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:19,364 INFO L85 PathProgramCache]: Analyzing trace with hash 671411669, now seen corresponding path program 83 times [2022-03-15 15:23:19,364 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:19,364 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367449596] [2022-03-15 15:23:19,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:19,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:19,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:19,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:19,441 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:19,441 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367449596] [2022-03-15 15:23:19,441 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367449596] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:19,441 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:19,441 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:19,441 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331371366] [2022-03-15 15:23:19,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:19,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:19,442 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:19,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:19,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:19,442 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) [2022-03-15 15:23:19,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:19,697 INFO L93 Difference]: Finished difference Result 1658 states and 4979 transitions. [2022-03-15 15:23:19,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:19,697 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:19,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:19,700 INFO L225 Difference]: With dead ends: 1658 [2022-03-15 15:23:19,700 INFO L226 Difference]: Without dead ends: 1573 [2022-03-15 15:23:19,700 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:19,700 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 [2022-03-15 15:23:19,700 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] [2022-03-15 15:23:19,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1573 states. [2022-03-15 15:23:19,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1573 to 1444. [2022-03-15 15:23:19,713 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) [2022-03-15 15:23:19,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 4397 transitions. [2022-03-15 15:23:19,715 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 4397 transitions. Word has length 26 [2022-03-15 15:23:19,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:19,716 INFO L470 AbstractCegarLoop]: Abstraction has 1444 states and 4397 transitions. [2022-03-15 15:23:19,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:19,716 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 4397 transitions. [2022-03-15 15:23:19,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:19,718 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:19,718 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:19,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-03-15 15:23:19,718 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:19,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:19,718 INFO L85 PathProgramCache]: Analyzing trace with hash -1264889257, now seen corresponding path program 84 times [2022-03-15 15:23:19,718 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:19,718 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120754362] [2022-03-15 15:23:19,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:19,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:19,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:19,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:19,820 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:19,820 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120754362] [2022-03-15 15:23:19,820 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120754362] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:19,821 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:19,821 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:19,821 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055436942] [2022-03-15 15:23:19,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:19,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:19,821 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:19,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:19,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:19,821 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) [2022-03-15 15:23:20,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:20,094 INFO L93 Difference]: Finished difference Result 1729 states and 5190 transitions. [2022-03-15 15:23:20,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:20,094 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:20,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:20,097 INFO L225 Difference]: With dead ends: 1729 [2022-03-15 15:23:20,097 INFO L226 Difference]: Without dead ends: 1634 [2022-03-15 15:23:20,097 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 [2022-03-15 15:23:20,097 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 15:23:20,097 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 263 Invalid, 733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 723 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 15:23:20,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1634 states. [2022-03-15 15:23:20,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1634 to 1464. [2022-03-15 15:23:20,113 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) [2022-03-15 15:23:20,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1464 states to 1464 states and 4456 transitions. [2022-03-15 15:23:20,115 INFO L78 Accepts]: Start accepts. Automaton has 1464 states and 4456 transitions. Word has length 26 [2022-03-15 15:23:20,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:20,115 INFO L470 AbstractCegarLoop]: Abstraction has 1464 states and 4456 transitions. [2022-03-15 15:23:20,115 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) [2022-03-15 15:23:20,115 INFO L276 IsEmpty]: Start isEmpty. Operand 1464 states and 4456 transitions. [2022-03-15 15:23:20,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:20,117 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:20,117 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] [2022-03-15 15:23:20,117 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-03-15 15:23:20,117 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:20,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:20,117 INFO L85 PathProgramCache]: Analyzing trace with hash 2110896917, now seen corresponding path program 85 times [2022-03-15 15:23:20,117 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:20,118 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852660572] [2022-03-15 15:23:20,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:20,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:20,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:20,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:20,202 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:20,203 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852660572] [2022-03-15 15:23:20,203 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852660572] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:20,203 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:20,203 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:20,203 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197264124] [2022-03-15 15:23:20,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:20,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:20,203 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:20,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:20,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:20,204 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) [2022-03-15 15:23:20,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:20,475 INFO L93 Difference]: Finished difference Result 1739 states and 5230 transitions. [2022-03-15 15:23:20,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:20,475 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 [2022-03-15 15:23:20,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:20,477 INFO L225 Difference]: With dead ends: 1739 [2022-03-15 15:23:20,477 INFO L226 Difference]: Without dead ends: 1609 [2022-03-15 15:23:20,478 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 [2022-03-15 15:23:20,478 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 15:23:20,478 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 266 Invalid, 744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 732 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 15:23:20,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1609 states. [2022-03-15 15:23:20,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1609 to 1469. [2022-03-15 15:23:20,491 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) [2022-03-15 15:23:20,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1469 states to 1469 states and 4454 transitions. [2022-03-15 15:23:20,493 INFO L78 Accepts]: Start accepts. Automaton has 1469 states and 4454 transitions. Word has length 26 [2022-03-15 15:23:20,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:20,493 INFO L470 AbstractCegarLoop]: Abstraction has 1469 states and 4454 transitions. [2022-03-15 15:23:20,493 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) [2022-03-15 15:23:20,493 INFO L276 IsEmpty]: Start isEmpty. Operand 1469 states and 4454 transitions. [2022-03-15 15:23:20,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:20,495 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:20,495 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] [2022-03-15 15:23:20,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-03-15 15:23:20,495 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:20,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:20,496 INFO L85 PathProgramCache]: Analyzing trace with hash 463329651, now seen corresponding path program 86 times [2022-03-15 15:23:20,496 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:20,496 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950938398] [2022-03-15 15:23:20,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:20,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:20,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:20,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:20,594 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:20,594 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950938398] [2022-03-15 15:23:20,594 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950938398] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:20,594 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:20,595 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:20,595 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200037691] [2022-03-15 15:23:20,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:20,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:20,595 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:20,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:20,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:20,595 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) [2022-03-15 15:23:20,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:20,883 INFO L93 Difference]: Finished difference Result 1598 states and 4788 transitions. [2022-03-15 15:23:20,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:20,883 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:20,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:20,886 INFO L225 Difference]: With dead ends: 1598 [2022-03-15 15:23:20,887 INFO L226 Difference]: Without dead ends: 1519 [2022-03-15 15:23:20,887 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 [2022-03-15 15:23:20,887 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 15:23:20,887 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 228 Invalid, 673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 665 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 15:23:20,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1519 states. [2022-03-15 15:23:20,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1519 to 1469. [2022-03-15 15:23:20,903 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) [2022-03-15 15:23:20,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1469 states to 1469 states and 4454 transitions. [2022-03-15 15:23:20,906 INFO L78 Accepts]: Start accepts. Automaton has 1469 states and 4454 transitions. Word has length 26 [2022-03-15 15:23:20,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:20,907 INFO L470 AbstractCegarLoop]: Abstraction has 1469 states and 4454 transitions. [2022-03-15 15:23:20,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:20,907 INFO L276 IsEmpty]: Start isEmpty. Operand 1469 states and 4454 transitions. [2022-03-15 15:23:20,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:20,909 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:20,909 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:20,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-03-15 15:23:20,909 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:20,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:20,909 INFO L85 PathProgramCache]: Analyzing trace with hash -1472971275, now seen corresponding path program 87 times [2022-03-15 15:23:20,909 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:20,910 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459988389] [2022-03-15 15:23:20,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:20,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:20,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:21,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:21,000 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:21,000 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459988389] [2022-03-15 15:23:21,000 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459988389] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:21,000 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:21,000 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:21,001 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213269383] [2022-03-15 15:23:21,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:21,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:21,001 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:21,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:21,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:21,001 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) [2022-03-15 15:23:21,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:21,331 INFO L93 Difference]: Finished difference Result 1617 states and 4837 transitions. [2022-03-15 15:23:21,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:21,331 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:21,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:21,334 INFO L225 Difference]: With dead ends: 1617 [2022-03-15 15:23:21,334 INFO L226 Difference]: Without dead ends: 1522 [2022-03-15 15:23:21,334 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 [2022-03-15 15:23:21,334 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 49 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 715 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 15:23:21,334 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 226 Invalid, 723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 715 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 15:23:21,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1522 states. [2022-03-15 15:23:21,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1522 to 1471. [2022-03-15 15:23:21,347 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) [2022-03-15 15:23:21,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1471 states to 1471 states and 4459 transitions. [2022-03-15 15:23:21,349 INFO L78 Accepts]: Start accepts. Automaton has 1471 states and 4459 transitions. Word has length 26 [2022-03-15 15:23:21,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:21,349 INFO L470 AbstractCegarLoop]: Abstraction has 1471 states and 4459 transitions. [2022-03-15 15:23:21,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:21,349 INFO L276 IsEmpty]: Start isEmpty. Operand 1471 states and 4459 transitions. [2022-03-15 15:23:21,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:21,351 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:21,351 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:21,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-03-15 15:23:21,351 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:21,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:21,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1105598891, now seen corresponding path program 88 times [2022-03-15 15:23:21,352 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:21,352 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043213242] [2022-03-15 15:23:21,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:21,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:21,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:21,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:21,428 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:21,428 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043213242] [2022-03-15 15:23:21,428 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043213242] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:21,428 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:21,428 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:21,428 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117373128] [2022-03-15 15:23:21,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:21,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:21,429 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:21,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:21,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:21,429 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) [2022-03-15 15:23:21,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:21,669 INFO L93 Difference]: Finished difference Result 1682 states and 5045 transitions. [2022-03-15 15:23:21,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:21,669 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:21,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:21,672 INFO L225 Difference]: With dead ends: 1682 [2022-03-15 15:23:21,672 INFO L226 Difference]: Without dead ends: 1603 [2022-03-15 15:23:21,672 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:21,672 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 [2022-03-15 15:23:21,672 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] [2022-03-15 15:23:21,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1603 states. [2022-03-15 15:23:21,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1603 to 1470. [2022-03-15 15:23:21,686 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) [2022-03-15 15:23:21,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 4455 transitions. [2022-03-15 15:23:21,688 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 4455 transitions. Word has length 26 [2022-03-15 15:23:21,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:21,688 INFO L470 AbstractCegarLoop]: Abstraction has 1470 states and 4455 transitions. [2022-03-15 15:23:21,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:21,688 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 4455 transitions. [2022-03-15 15:23:21,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:21,690 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:21,690 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:21,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-03-15 15:23:21,690 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:21,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:21,690 INFO L85 PathProgramCache]: Analyzing trace with hash 874084315, now seen corresponding path program 89 times [2022-03-15 15:23:21,690 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:21,690 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988581544] [2022-03-15 15:23:21,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:21,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:21,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:21,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:21,783 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:21,784 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988581544] [2022-03-15 15:23:21,784 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988581544] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:21,784 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:21,784 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:21,784 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157549971] [2022-03-15 15:23:21,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:21,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:21,784 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:21,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:21,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:21,785 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) [2022-03-15 15:23:22,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:22,074 INFO L93 Difference]: Finished difference Result 1669 states and 5007 transitions. [2022-03-15 15:23:22,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:22,074 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:22,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:22,077 INFO L225 Difference]: With dead ends: 1669 [2022-03-15 15:23:22,077 INFO L226 Difference]: Without dead ends: 1580 [2022-03-15 15:23:22,077 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 [2022-03-15 15:23:22,078 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 15:23:22,078 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 232 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 15:23:22,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1580 states. [2022-03-15 15:23:22,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1580 to 1469. [2022-03-15 15:23:22,092 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) [2022-03-15 15:23:22,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1469 states to 1469 states and 4449 transitions. [2022-03-15 15:23:22,095 INFO L78 Accepts]: Start accepts. Automaton has 1469 states and 4449 transitions. Word has length 26 [2022-03-15 15:23:22,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:22,095 INFO L470 AbstractCegarLoop]: Abstraction has 1469 states and 4449 transitions. [2022-03-15 15:23:22,095 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:22,095 INFO L276 IsEmpty]: Start isEmpty. Operand 1469 states and 4449 transitions. [2022-03-15 15:23:22,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:22,097 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:22,097 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:22,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-03-15 15:23:22,097 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:22,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:22,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1519505117, now seen corresponding path program 90 times [2022-03-15 15:23:22,097 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:22,097 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938237601] [2022-03-15 15:23:22,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:22,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:22,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:22,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:22,189 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:22,189 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938237601] [2022-03-15 15:23:22,189 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938237601] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:22,189 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:22,189 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:22,189 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297922229] [2022-03-15 15:23:22,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:22,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:22,189 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:22,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:22,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:22,190 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) [2022-03-15 15:23:22,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:22,478 INFO L93 Difference]: Finished difference Result 1654 states and 4951 transitions. [2022-03-15 15:23:22,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:22,479 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:22,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:22,482 INFO L225 Difference]: With dead ends: 1654 [2022-03-15 15:23:22,482 INFO L226 Difference]: Without dead ends: 1566 [2022-03-15 15:23:22,482 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 [2022-03-15 15:23:22,482 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 15:23:22,482 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 228 Invalid, 721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 15:23:22,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1566 states. [2022-03-15 15:23:22,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1566 to 1470. [2022-03-15 15:23:22,498 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) [2022-03-15 15:23:22,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 4453 transitions. [2022-03-15 15:23:22,500 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 4453 transitions. Word has length 26 [2022-03-15 15:23:22,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:22,500 INFO L470 AbstractCegarLoop]: Abstraction has 1470 states and 4453 transitions. [2022-03-15 15:23:22,500 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:22,500 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 4453 transitions. [2022-03-15 15:23:22,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:22,502 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:22,502 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:22,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-03-15 15:23:22,502 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:22,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:22,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1607441851, now seen corresponding path program 91 times [2022-03-15 15:23:22,503 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:22,503 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687084549] [2022-03-15 15:23:22,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:22,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:22,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:22,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:22,590 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:22,590 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687084549] [2022-03-15 15:23:22,590 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687084549] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:22,590 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:22,590 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:22,590 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122740714] [2022-03-15 15:23:22,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:22,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:22,591 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:22,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:22,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:22,591 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) [2022-03-15 15:23:22,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:22,884 INFO L93 Difference]: Finished difference Result 1673 states and 4993 transitions. [2022-03-15 15:23:22,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:22,885 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 [2022-03-15 15:23:22,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:22,888 INFO L225 Difference]: With dead ends: 1673 [2022-03-15 15:23:22,888 INFO L226 Difference]: Without dead ends: 1579 [2022-03-15 15:23:22,888 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 [2022-03-15 15:23:22,888 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 15:23:22,888 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 230 Invalid, 681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 671 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 15:23:22,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1579 states. [2022-03-15 15:23:22,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1579 to 1475. [2022-03-15 15:23:22,902 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) [2022-03-15 15:23:22,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1475 states to 1475 states and 4474 transitions. [2022-03-15 15:23:22,905 INFO L78 Accepts]: Start accepts. Automaton has 1475 states and 4474 transitions. Word has length 26 [2022-03-15 15:23:22,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:22,905 INFO L470 AbstractCegarLoop]: Abstraction has 1475 states and 4474 transitions. [2022-03-15 15:23:22,905 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:22,905 INFO L276 IsEmpty]: Start isEmpty. Operand 1475 states and 4474 transitions. [2022-03-15 15:23:22,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:22,907 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:22,907 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:22,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-03-15 15:23:22,907 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:22,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:22,907 INFO L85 PathProgramCache]: Analyzing trace with hash 256521685, now seen corresponding path program 92 times [2022-03-15 15:23:22,907 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:22,907 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614384661] [2022-03-15 15:23:22,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:22,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:22,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:22,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:22,985 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:22,985 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614384661] [2022-03-15 15:23:22,985 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614384661] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:22,985 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:22,986 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:22,986 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61954803] [2022-03-15 15:23:22,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:22,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:22,986 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:22,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:22,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:22,986 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) [2022-03-15 15:23:23,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:23,232 INFO L93 Difference]: Finished difference Result 1627 states and 4876 transitions. [2022-03-15 15:23:23,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:23,232 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 [2022-03-15 15:23:23,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:23,235 INFO L225 Difference]: With dead ends: 1627 [2022-03-15 15:23:23,235 INFO L226 Difference]: Without dead ends: 1548 [2022-03-15 15:23:23,236 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 [2022-03-15 15:23:23,236 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 [2022-03-15 15:23:23,236 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] [2022-03-15 15:23:23,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1548 states. [2022-03-15 15:23:23,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1548 to 1475. [2022-03-15 15:23:23,250 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) [2022-03-15 15:23:23,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1475 states to 1475 states and 4474 transitions. [2022-03-15 15:23:23,252 INFO L78 Accepts]: Start accepts. Automaton has 1475 states and 4474 transitions. Word has length 26 [2022-03-15 15:23:23,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:23,252 INFO L470 AbstractCegarLoop]: Abstraction has 1475 states and 4474 transitions. [2022-03-15 15:23:23,252 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) [2022-03-15 15:23:23,252 INFO L276 IsEmpty]: Start isEmpty. Operand 1475 states and 4474 transitions. [2022-03-15 15:23:23,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:23,254 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:23,254 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] [2022-03-15 15:23:23,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-03-15 15:23:23,254 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:23,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:23,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1679779241, now seen corresponding path program 93 times [2022-03-15 15:23:23,254 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:23,254 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978484017] [2022-03-15 15:23:23,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:23,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:23,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:23,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:23,340 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:23,340 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978484017] [2022-03-15 15:23:23,340 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978484017] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:23,340 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:23,340 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:23,340 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85809800] [2022-03-15 15:23:23,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:23,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:23,340 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:23,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:23,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:23,340 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) [2022-03-15 15:23:23,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:23,601 INFO L93 Difference]: Finished difference Result 1646 states and 4929 transitions. [2022-03-15 15:23:23,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:23,602 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 [2022-03-15 15:23:23,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:23,605 INFO L225 Difference]: With dead ends: 1646 [2022-03-15 15:23:23,605 INFO L226 Difference]: Without dead ends: 1551 [2022-03-15 15:23:23,605 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 [2022-03-15 15:23:23,605 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 [2022-03-15 15:23:23,605 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] [2022-03-15 15:23:23,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1551 states. [2022-03-15 15:23:23,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1551 to 1478. [2022-03-15 15:23:23,620 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) [2022-03-15 15:23:23,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1478 states to 1478 states and 4482 transitions. [2022-03-15 15:23:23,622 INFO L78 Accepts]: Start accepts. Automaton has 1478 states and 4482 transitions. Word has length 26 [2022-03-15 15:23:23,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:23,622 INFO L470 AbstractCegarLoop]: Abstraction has 1478 states and 4482 transitions. [2022-03-15 15:23:23,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:23,622 INFO L276 IsEmpty]: Start isEmpty. Operand 1478 states and 4482 transitions. [2022-03-15 15:23:23,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:23,624 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:23,624 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:23,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-03-15 15:23:23,624 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:23,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:23,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1958024533, now seen corresponding path program 94 times [2022-03-15 15:23:23,624 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:23,624 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047953033] [2022-03-15 15:23:23,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:23,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:23,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:23,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:23,715 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:23,715 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047953033] [2022-03-15 15:23:23,715 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047953033] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:23,715 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:23,715 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:23,715 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251759485] [2022-03-15 15:23:23,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:23,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:23,716 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:23,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:23,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:23,716 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) [2022-03-15 15:23:23,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:23,953 INFO L93 Difference]: Finished difference Result 1664 states and 4981 transitions. [2022-03-15 15:23:23,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:23,954 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:23,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:23,956 INFO L225 Difference]: With dead ends: 1664 [2022-03-15 15:23:23,957 INFO L226 Difference]: Without dead ends: 1579 [2022-03-15 15:23:23,957 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 [2022-03-15 15:23:23,957 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 [2022-03-15 15:23:23,957 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] [2022-03-15 15:23:23,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1579 states. [2022-03-15 15:23:23,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1579 to 1477. [2022-03-15 15:23:23,970 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) [2022-03-15 15:23:23,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1477 states to 1477 states and 4475 transitions. [2022-03-15 15:23:23,973 INFO L78 Accepts]: Start accepts. Automaton has 1477 states and 4475 transitions. Word has length 26 [2022-03-15 15:23:23,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:23,973 INFO L470 AbstractCegarLoop]: Abstraction has 1477 states and 4475 transitions. [2022-03-15 15:23:23,973 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) [2022-03-15 15:23:23,973 INFO L276 IsEmpty]: Start isEmpty. Operand 1477 states and 4475 transitions. [2022-03-15 15:23:23,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:23,975 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:23,975 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:23,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-03-15 15:23:23,975 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:23,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:23,975 INFO L85 PathProgramCache]: Analyzing trace with hash 629458611, now seen corresponding path program 95 times [2022-03-15 15:23:23,975 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:23,975 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246140937] [2022-03-15 15:23:23,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:23,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:23,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:24,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:24,062 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:24,062 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246140937] [2022-03-15 15:23:24,062 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246140937] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:24,062 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:24,062 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:24,062 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650822981] [2022-03-15 15:23:24,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:24,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:24,062 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:24,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:24,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:24,063 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) [2022-03-15 15:23:24,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:24,328 INFO L93 Difference]: Finished difference Result 1654 states and 4965 transitions. [2022-03-15 15:23:24,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:24,329 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 [2022-03-15 15:23:24,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:24,332 INFO L225 Difference]: With dead ends: 1654 [2022-03-15 15:23:24,332 INFO L226 Difference]: Without dead ends: 1554 [2022-03-15 15:23:24,332 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:24,332 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 15:23:24,332 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 231 Invalid, 740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 730 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 15:23:24,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1554 states. [2022-03-15 15:23:24,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1554 to 1475. [2022-03-15 15:23:24,345 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) [2022-03-15 15:23:24,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1475 states to 1475 states and 4473 transitions. [2022-03-15 15:23:24,347 INFO L78 Accepts]: Start accepts. Automaton has 1475 states and 4473 transitions. Word has length 26 [2022-03-15 15:23:24,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:24,347 INFO L470 AbstractCegarLoop]: Abstraction has 1475 states and 4473 transitions. [2022-03-15 15:23:24,347 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:24,347 INFO L276 IsEmpty]: Start isEmpty. Operand 1475 states and 4473 transitions. [2022-03-15 15:23:24,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:24,349 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:24,349 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:24,349 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-03-15 15:23:24,349 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:24,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:24,349 INFO L85 PathProgramCache]: Analyzing trace with hash 456182079, now seen corresponding path program 96 times [2022-03-15 15:23:24,349 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:24,349 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413562673] [2022-03-15 15:23:24,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:24,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:24,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:24,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:24,430 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:24,430 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413562673] [2022-03-15 15:23:24,430 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413562673] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:24,430 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:24,430 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:24,430 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374214016] [2022-03-15 15:23:24,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:24,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:24,431 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:24,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:24,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:24,431 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) [2022-03-15 15:23:24,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:24,692 INFO L93 Difference]: Finished difference Result 1649 states and 4952 transitions. [2022-03-15 15:23:24,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:24,692 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:24,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:24,695 INFO L225 Difference]: With dead ends: 1649 [2022-03-15 15:23:24,695 INFO L226 Difference]: Without dead ends: 1561 [2022-03-15 15:23:24,696 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:24,696 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 [2022-03-15 15:23:24,696 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] [2022-03-15 15:23:24,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1561 states. [2022-03-15 15:23:24,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1561 to 1481. [2022-03-15 15:23:24,711 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) [2022-03-15 15:23:24,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1481 states to 1481 states and 4491 transitions. [2022-03-15 15:23:24,713 INFO L78 Accepts]: Start accepts. Automaton has 1481 states and 4491 transitions. Word has length 26 [2022-03-15 15:23:24,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:24,713 INFO L470 AbstractCegarLoop]: Abstraction has 1481 states and 4491 transitions. [2022-03-15 15:23:24,713 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:24,713 INFO L276 IsEmpty]: Start isEmpty. Operand 1481 states and 4491 transitions. [2022-03-15 15:23:24,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:24,715 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:24,715 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:24,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-03-15 15:23:24,715 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:24,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:24,716 INFO L85 PathProgramCache]: Analyzing trace with hash 544118813, now seen corresponding path program 97 times [2022-03-15 15:23:24,716 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:24,716 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180766812] [2022-03-15 15:23:24,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:24,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:24,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:24,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:24,803 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:24,803 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180766812] [2022-03-15 15:23:24,803 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180766812] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:24,803 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:24,803 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:24,803 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147978109] [2022-03-15 15:23:24,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:24,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:24,804 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:24,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:24,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:24,804 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) [2022-03-15 15:23:25,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:25,111 INFO L93 Difference]: Finished difference Result 1675 states and 4997 transitions. [2022-03-15 15:23:25,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:25,111 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:25,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:25,115 INFO L225 Difference]: With dead ends: 1675 [2022-03-15 15:23:25,115 INFO L226 Difference]: Without dead ends: 1583 [2022-03-15 15:23:25,115 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 [2022-03-15 15:23:25,116 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 15:23:25,116 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 234 Invalid, 685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 673 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 15:23:25,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1583 states. [2022-03-15 15:23:25,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1583 to 1479. [2022-03-15 15:23:25,135 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) [2022-03-15 15:23:25,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1479 states to 1479 states and 4480 transitions. [2022-03-15 15:23:25,138 INFO L78 Accepts]: Start accepts. Automaton has 1479 states and 4480 transitions. Word has length 26 [2022-03-15 15:23:25,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:25,139 INFO L470 AbstractCegarLoop]: Abstraction has 1479 states and 4480 transitions. [2022-03-15 15:23:25,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:25,139 INFO L276 IsEmpty]: Start isEmpty. Operand 1479 states and 4480 transitions. [2022-03-15 15:23:25,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:25,141 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:25,141 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:25,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2022-03-15 15:23:25,141 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:25,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:25,142 INFO L85 PathProgramCache]: Analyzing trace with hash -935962467, now seen corresponding path program 98 times [2022-03-15 15:23:25,142 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:25,142 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892395228] [2022-03-15 15:23:25,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:25,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:25,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:25,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:25,240 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:25,240 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892395228] [2022-03-15 15:23:25,240 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892395228] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:25,240 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:25,240 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:25,240 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446319215] [2022-03-15 15:23:25,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:25,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:25,241 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:25,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:25,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:25,241 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) [2022-03-15 15:23:25,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:25,533 INFO L93 Difference]: Finished difference Result 1599 states and 4788 transitions. [2022-03-15 15:23:25,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:25,533 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:25,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:25,536 INFO L225 Difference]: With dead ends: 1599 [2022-03-15 15:23:25,536 INFO L226 Difference]: Without dead ends: 1480 [2022-03-15 15:23:25,536 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 [2022-03-15 15:23:25,536 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 15:23:25,536 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 233 Invalid, 738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 726 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 15:23:25,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1480 states. [2022-03-15 15:23:25,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1480 to 1444. [2022-03-15 15:23:25,550 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) [2022-03-15 15:23:25,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 4393 transitions. [2022-03-15 15:23:25,552 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 4393 transitions. Word has length 26 [2022-03-15 15:23:25,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:25,552 INFO L470 AbstractCegarLoop]: Abstraction has 1444 states and 4393 transitions. [2022-03-15 15:23:25,552 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) [2022-03-15 15:23:25,552 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 4393 transitions. [2022-03-15 15:23:25,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:25,560 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:25,560 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:25,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-03-15 15:23:25,561 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:25,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:25,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1375996709, now seen corresponding path program 99 times [2022-03-15 15:23:25,561 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:25,561 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018669558] [2022-03-15 15:23:25,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:25,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:25,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:25,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:25,629 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:25,629 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018669558] [2022-03-15 15:23:25,629 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018669558] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:25,630 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:25,630 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 15:23:25,630 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108825689] [2022-03-15 15:23:25,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:25,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 15:23:25,631 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:25,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 15:23:25,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-03-15 15:23:25,631 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) [2022-03-15 15:23:25,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:25,846 INFO L93 Difference]: Finished difference Result 1798 states and 5382 transitions. [2022-03-15 15:23:25,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-15 15:23:25,846 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 [2022-03-15 15:23:25,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:25,850 INFO L225 Difference]: With dead ends: 1798 [2022-03-15 15:23:25,850 INFO L226 Difference]: Without dead ends: 1641 [2022-03-15 15:23:25,850 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 [2022-03-15 15:23:25,851 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 54 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:23:25,851 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 197 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:23:25,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1641 states. [2022-03-15 15:23:25,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1641 to 1518. [2022-03-15 15:23:25,869 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) [2022-03-15 15:23:25,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1518 states to 1518 states and 4611 transitions. [2022-03-15 15:23:25,873 INFO L78 Accepts]: Start accepts. Automaton has 1518 states and 4611 transitions. Word has length 26 [2022-03-15 15:23:25,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:25,873 INFO L470 AbstractCegarLoop]: Abstraction has 1518 states and 4611 transitions. [2022-03-15 15:23:25,873 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) [2022-03-15 15:23:25,873 INFO L276 IsEmpty]: Start isEmpty. Operand 1518 states and 4611 transitions. [2022-03-15 15:23:25,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:25,875 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:25,875 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:25,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2022-03-15 15:23:25,876 INFO L402 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:25,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:25,876 INFO L85 PathProgramCache]: Analyzing trace with hash 802701469, now seen corresponding path program 100 times [2022-03-15 15:23:25,876 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:25,876 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600419889] [2022-03-15 15:23:25,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:25,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:25,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:25,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:25,955 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:25,956 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600419889] [2022-03-15 15:23:25,956 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600419889] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:25,956 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:25,956 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:23:25,956 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545570973] [2022-03-15 15:23:25,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:25,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:23:25,956 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:25,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:23:25,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:23:25,957 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) [2022-03-15 15:23:26,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:26,200 INFO L93 Difference]: Finished difference Result 1800 states and 5385 transitions. [2022-03-15 15:23:26,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:23:26,200 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 [2022-03-15 15:23:26,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:26,203 INFO L225 Difference]: With dead ends: 1800 [2022-03-15 15:23:26,203 INFO L226 Difference]: Without dead ends: 1650 [2022-03-15 15:23:26,204 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 [2022-03-15 15:23:26,204 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 [2022-03-15 15:23:26,204 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] [2022-03-15 15:23:26,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1650 states. [2022-03-15 15:23:26,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1650 to 1502. [2022-03-15 15:23:26,218 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) [2022-03-15 15:23:26,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1502 states to 1502 states and 4569 transitions. [2022-03-15 15:23:26,220 INFO L78 Accepts]: Start accepts. Automaton has 1502 states and 4569 transitions. Word has length 26 [2022-03-15 15:23:26,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:26,220 INFO L470 AbstractCegarLoop]: Abstraction has 1502 states and 4569 transitions. [2022-03-15 15:23:26,220 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) [2022-03-15 15:23:26,220 INFO L276 IsEmpty]: Start isEmpty. Operand 1502 states and 4569 transitions. [2022-03-15 15:23:26,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:26,222 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:26,222 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:26,222 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2022-03-15 15:23:26,222 INFO L402 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:26,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:26,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1582804675, now seen corresponding path program 101 times [2022-03-15 15:23:26,222 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:26,222 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310313745] [2022-03-15 15:23:26,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:26,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:26,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:26,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:26,299 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:26,299 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310313745] [2022-03-15 15:23:26,299 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310313745] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:26,299 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:26,299 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:23:26,299 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971716615] [2022-03-15 15:23:26,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:26,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:23:26,299 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:26,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:23:26,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:23:26,299 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) [2022-03-15 15:23:26,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:26,515 INFO L93 Difference]: Finished difference Result 1960 states and 5843 transitions. [2022-03-15 15:23:26,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:23:26,515 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 [2022-03-15 15:23:26,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:26,518 INFO L225 Difference]: With dead ends: 1960 [2022-03-15 15:23:26,518 INFO L226 Difference]: Without dead ends: 1674 [2022-03-15 15:23:26,518 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 [2022-03-15 15:23:26,518 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 65 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:23:26,518 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] [2022-03-15 15:23:26,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1674 states. [2022-03-15 15:23:26,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1674 to 1624. [2022-03-15 15:23:26,537 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) [2022-03-15 15:23:26,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1624 states to 1624 states and 4866 transitions. [2022-03-15 15:23:26,540 INFO L78 Accepts]: Start accepts. Automaton has 1624 states and 4866 transitions. Word has length 26 [2022-03-15 15:23:26,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:26,540 INFO L470 AbstractCegarLoop]: Abstraction has 1624 states and 4866 transitions. [2022-03-15 15:23:26,541 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) [2022-03-15 15:23:26,541 INFO L276 IsEmpty]: Start isEmpty. Operand 1624 states and 4866 transitions. [2022-03-15 15:23:26,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:26,543 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:26,543 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:26,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2022-03-15 15:23:26,543 INFO L402 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:26,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:26,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1282346073, now seen corresponding path program 102 times [2022-03-15 15:23:26,544 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:26,544 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517163757] [2022-03-15 15:23:26,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:26,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:26,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:26,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:26,619 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:26,619 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517163757] [2022-03-15 15:23:26,619 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517163757] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:26,619 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:26,619 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:26,619 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823235840] [2022-03-15 15:23:26,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:26,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:26,619 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:26,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:26,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:26,620 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) [2022-03-15 15:23:26,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:26,876 INFO L93 Difference]: Finished difference Result 1845 states and 5416 transitions. [2022-03-15 15:23:26,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:26,877 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:26,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:26,879 INFO L225 Difference]: With dead ends: 1845 [2022-03-15 15:23:26,879 INFO L226 Difference]: Without dead ends: 1600 [2022-03-15 15:23:26,879 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:26,879 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 [2022-03-15 15:23:26,879 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] [2022-03-15 15:23:26,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1600 states. [2022-03-15 15:23:26,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1600 to 1516. [2022-03-15 15:23:26,892 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) [2022-03-15 15:23:26,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1516 states to 1516 states and 4482 transitions. [2022-03-15 15:23:26,895 INFO L78 Accepts]: Start accepts. Automaton has 1516 states and 4482 transitions. Word has length 26 [2022-03-15 15:23:26,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:26,895 INFO L470 AbstractCegarLoop]: Abstraction has 1516 states and 4482 transitions. [2022-03-15 15:23:26,895 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) [2022-03-15 15:23:26,895 INFO L276 IsEmpty]: Start isEmpty. Operand 1516 states and 4482 transitions. [2022-03-15 15:23:26,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:26,897 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:26,897 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:26,897 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2022-03-15 15:23:26,898 INFO L402 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:26,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:26,898 INFO L85 PathProgramCache]: Analyzing trace with hash 571020857, now seen corresponding path program 103 times [2022-03-15 15:23:26,898 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:26,898 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873863890] [2022-03-15 15:23:26,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:26,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:26,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:26,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:26,987 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:26,987 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873863890] [2022-03-15 15:23:26,987 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873863890] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:26,987 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:26,987 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:26,987 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542531796] [2022-03-15 15:23:26,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:26,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:26,987 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:26,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:26,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:26,988 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) [2022-03-15 15:23:27,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:27,280 INFO L93 Difference]: Finished difference Result 1776 states and 5183 transitions. [2022-03-15 15:23:27,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:27,280 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 [2022-03-15 15:23:27,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:27,283 INFO L225 Difference]: With dead ends: 1776 [2022-03-15 15:23:27,283 INFO L226 Difference]: Without dead ends: 1640 [2022-03-15 15:23:27,283 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 [2022-03-15 15:23:27,283 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 15:23:27,283 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 290 Invalid, 737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 725 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 15:23:27,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1640 states. [2022-03-15 15:23:27,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1640 to 1518. [2022-03-15 15:23:27,296 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) [2022-03-15 15:23:27,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1518 states to 1518 states and 4481 transitions. [2022-03-15 15:23:27,299 INFO L78 Accepts]: Start accepts. Automaton has 1518 states and 4481 transitions. Word has length 26 [2022-03-15 15:23:27,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:27,299 INFO L470 AbstractCegarLoop]: Abstraction has 1518 states and 4481 transitions. [2022-03-15 15:23:27,299 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) [2022-03-15 15:23:27,299 INFO L276 IsEmpty]: Start isEmpty. Operand 1518 states and 4481 transitions. [2022-03-15 15:23:27,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:27,301 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:27,301 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] [2022-03-15 15:23:27,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2022-03-15 15:23:27,301 INFO L402 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:27,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:27,301 INFO L85 PathProgramCache]: Analyzing trace with hash -997907685, now seen corresponding path program 104 times [2022-03-15 15:23:27,301 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:27,301 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137784987] [2022-03-15 15:23:27,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:27,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:27,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:27,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:27,372 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:27,372 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137784987] [2022-03-15 15:23:27,372 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137784987] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:27,372 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:27,372 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:27,373 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006613951] [2022-03-15 15:23:27,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:27,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:27,373 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:27,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:27,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:27,373 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) [2022-03-15 15:23:27,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:27,635 INFO L93 Difference]: Finished difference Result 1746 states and 5066 transitions. [2022-03-15 15:23:27,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:27,635 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:27,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:27,639 INFO L225 Difference]: With dead ends: 1746 [2022-03-15 15:23:27,639 INFO L226 Difference]: Without dead ends: 1617 [2022-03-15 15:23:27,639 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:27,639 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 15:23:27,639 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 286 Invalid, 733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 723 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 15:23:27,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1617 states. [2022-03-15 15:23:27,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1617 to 1514. [2022-03-15 15:23:27,653 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) [2022-03-15 15:23:27,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1514 states to 1514 states and 4470 transitions. [2022-03-15 15:23:27,656 INFO L78 Accepts]: Start accepts. Automaton has 1514 states and 4470 transitions. Word has length 26 [2022-03-15 15:23:27,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:27,656 INFO L470 AbstractCegarLoop]: Abstraction has 1514 states and 4470 transitions. [2022-03-15 15:23:27,656 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:27,656 INFO L276 IsEmpty]: Start isEmpty. Operand 1514 states and 4470 transitions. [2022-03-15 15:23:27,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:27,657 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:27,657 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:27,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2022-03-15 15:23:27,658 INFO L402 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:27,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:27,658 INFO L85 PathProgramCache]: Analyzing trace with hash 981775521, now seen corresponding path program 105 times [2022-03-15 15:23:27,658 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:27,658 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537151731] [2022-03-15 15:23:27,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:27,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:27,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:27,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:27,747 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:27,747 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537151731] [2022-03-15 15:23:27,747 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537151731] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:27,747 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:27,747 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:27,747 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050631393] [2022-03-15 15:23:27,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:27,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:27,747 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:27,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:27,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:27,748 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) [2022-03-15 15:23:28,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:28,011 INFO L93 Difference]: Finished difference Result 1698 states and 4924 transitions. [2022-03-15 15:23:28,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:28,011 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:28,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:28,013 INFO L225 Difference]: With dead ends: 1698 [2022-03-15 15:23:28,013 INFO L226 Difference]: Without dead ends: 1552 [2022-03-15 15:23:28,014 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 [2022-03-15 15:23:28,014 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 15:23:28,014 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 287 Invalid, 746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 734 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 15:23:28,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1552 states. [2022-03-15 15:23:28,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1552 to 1502. [2022-03-15 15:23:28,027 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) [2022-03-15 15:23:28,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1502 states to 1502 states and 4439 transitions. [2022-03-15 15:23:28,030 INFO L78 Accepts]: Start accepts. Automaton has 1502 states and 4439 transitions. Word has length 26 [2022-03-15 15:23:28,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:28,030 INFO L470 AbstractCegarLoop]: Abstraction has 1502 states and 4439 transitions. [2022-03-15 15:23:28,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:28,030 INFO L276 IsEmpty]: Start isEmpty. Operand 1502 states and 4439 transitions. [2022-03-15 15:23:28,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:28,031 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:28,032 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] [2022-03-15 15:23:28,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2022-03-15 15:23:28,032 INFO L402 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:28,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:28,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1567915523, now seen corresponding path program 106 times [2022-03-15 15:23:28,032 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:28,032 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901860501] [2022-03-15 15:23:28,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:28,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:28,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:28,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:28,121 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:28,121 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901860501] [2022-03-15 15:23:28,121 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901860501] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:28,121 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:28,121 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:28,121 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331956433] [2022-03-15 15:23:28,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:28,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:28,121 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:28,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:28,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:28,121 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) [2022-03-15 15:23:28,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:28,376 INFO L93 Difference]: Finished difference Result 1727 states and 5036 transitions. [2022-03-15 15:23:28,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:28,377 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 [2022-03-15 15:23:28,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:28,379 INFO L225 Difference]: With dead ends: 1727 [2022-03-15 15:23:28,379 INFO L226 Difference]: Without dead ends: 1598 [2022-03-15 15:23:28,379 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 [2022-03-15 15:23:28,380 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 [2022-03-15 15:23:28,380 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] [2022-03-15 15:23:28,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1598 states. [2022-03-15 15:23:28,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1598 to 1526. [2022-03-15 15:23:28,393 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) [2022-03-15 15:23:28,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1526 states to 1526 states and 4505 transitions. [2022-03-15 15:23:28,395 INFO L78 Accepts]: Start accepts. Automaton has 1526 states and 4505 transitions. Word has length 26 [2022-03-15 15:23:28,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:28,395 INFO L470 AbstractCegarLoop]: Abstraction has 1526 states and 4505 transitions. [2022-03-15 15:23:28,395 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:28,395 INFO L276 IsEmpty]: Start isEmpty. Operand 1526 states and 4505 transitions. [2022-03-15 15:23:28,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:28,397 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:28,397 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:28,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2022-03-15 15:23:28,397 INFO L402 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:28,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:28,397 INFO L85 PathProgramCache]: Analyzing trace with hash 411767683, now seen corresponding path program 107 times [2022-03-15 15:23:28,397 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:28,397 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280715851] [2022-03-15 15:23:28,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:28,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:28,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:28,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:28,489 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:28,489 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280715851] [2022-03-15 15:23:28,489 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280715851] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:28,489 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:28,490 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:28,490 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767545391] [2022-03-15 15:23:28,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:28,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:28,490 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:28,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:28,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:28,490 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) [2022-03-15 15:23:28,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:28,813 INFO L93 Difference]: Finished difference Result 1850 states and 5404 transitions. [2022-03-15 15:23:28,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:28,813 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:28,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:28,816 INFO L225 Difference]: With dead ends: 1850 [2022-03-15 15:23:28,816 INFO L226 Difference]: Without dead ends: 1689 [2022-03-15 15:23:28,816 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 [2022-03-15 15:23:28,816 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 63 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 738 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 15:23:28,816 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 285 Invalid, 748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 738 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 15:23:28,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1689 states. [2022-03-15 15:23:28,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1689 to 1590. [2022-03-15 15:23:28,831 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) [2022-03-15 15:23:28,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1590 states to 1590 states and 4683 transitions. [2022-03-15 15:23:28,834 INFO L78 Accepts]: Start accepts. Automaton has 1590 states and 4683 transitions. Word has length 26 [2022-03-15 15:23:28,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:28,834 INFO L470 AbstractCegarLoop]: Abstraction has 1590 states and 4683 transitions. [2022-03-15 15:23:28,834 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:28,834 INFO L276 IsEmpty]: Start isEmpty. Operand 1590 states and 4683 transitions. [2022-03-15 15:23:28,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:28,836 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:28,836 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] [2022-03-15 15:23:28,836 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2022-03-15 15:23:28,836 INFO L402 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:28,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:28,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1145125219, now seen corresponding path program 108 times [2022-03-15 15:23:28,836 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:28,836 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365541923] [2022-03-15 15:23:28,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:28,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:28,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:28,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:28,924 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:28,924 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365541923] [2022-03-15 15:23:28,924 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365541923] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:28,924 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:28,925 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:28,925 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71288674] [2022-03-15 15:23:28,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:28,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:28,925 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:28,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:28,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:28,925 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) [2022-03-15 15:23:29,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:29,222 INFO L93 Difference]: Finished difference Result 1788 states and 5178 transitions. [2022-03-15 15:23:29,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:29,222 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:29,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:29,224 INFO L225 Difference]: With dead ends: 1788 [2022-03-15 15:23:29,224 INFO L226 Difference]: Without dead ends: 1636 [2022-03-15 15:23:29,225 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:29,225 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 15:23:29,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 289 Invalid, 752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 740 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 15:23:29,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1636 states. [2022-03-15 15:23:29,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1636 to 1524. [2022-03-15 15:23:29,238 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) [2022-03-15 15:23:29,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1524 states to 1524 states and 4494 transitions. [2022-03-15 15:23:29,240 INFO L78 Accepts]: Start accepts. Automaton has 1524 states and 4494 transitions. Word has length 26 [2022-03-15 15:23:29,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:29,240 INFO L470 AbstractCegarLoop]: Abstraction has 1524 states and 4494 transitions. [2022-03-15 15:23:29,240 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:29,240 INFO L276 IsEmpty]: Start isEmpty. Operand 1524 states and 4494 transitions. [2022-03-15 15:23:29,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:29,242 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:29,242 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] [2022-03-15 15:23:29,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2022-03-15 15:23:29,242 INFO L402 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:29,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:29,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1452003481, now seen corresponding path program 109 times [2022-03-15 15:23:29,242 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:29,242 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911935431] [2022-03-15 15:23:29,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:29,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:29,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:29,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:29,321 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:29,321 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911935431] [2022-03-15 15:23:29,321 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911935431] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:29,321 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:29,321 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:29,321 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971315547] [2022-03-15 15:23:29,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:29,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:29,321 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:29,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:29,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:29,322 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) [2022-03-15 15:23:29,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:29,583 INFO L93 Difference]: Finished difference Result 1802 states and 5245 transitions. [2022-03-15 15:23:29,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:29,584 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 [2022-03-15 15:23:29,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:29,586 INFO L225 Difference]: With dead ends: 1802 [2022-03-15 15:23:29,586 INFO L226 Difference]: Without dead ends: 1586 [2022-03-15 15:23:29,586 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 [2022-03-15 15:23:29,587 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 15:23:29,587 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 312 Invalid, 752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 740 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 15:23:29,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1586 states. [2022-03-15 15:23:29,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1586 to 1464. [2022-03-15 15:23:29,599 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) [2022-03-15 15:23:29,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1464 states to 1464 states and 4318 transitions. [2022-03-15 15:23:29,601 INFO L78 Accepts]: Start accepts. Automaton has 1464 states and 4318 transitions. Word has length 26 [2022-03-15 15:23:29,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:29,601 INFO L470 AbstractCegarLoop]: Abstraction has 1464 states and 4318 transitions. [2022-03-15 15:23:29,601 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) [2022-03-15 15:23:29,601 INFO L276 IsEmpty]: Start isEmpty. Operand 1464 states and 4318 transitions. [2022-03-15 15:23:29,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:29,603 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:29,603 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] [2022-03-15 15:23:29,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2022-03-15 15:23:29,603 INFO L402 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:29,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:29,603 INFO L85 PathProgramCache]: Analyzing trace with hash 890933497, now seen corresponding path program 110 times [2022-03-15 15:23:29,603 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:29,603 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142156003] [2022-03-15 15:23:29,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:29,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:29,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:29,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:29,678 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:29,679 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142156003] [2022-03-15 15:23:29,679 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142156003] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:29,679 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:29,679 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:23:29,679 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570184046] [2022-03-15 15:23:29,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:29,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:23:29,679 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:29,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:23:29,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:23:29,679 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) [2022-03-15 15:23:29,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:29,895 INFO L93 Difference]: Finished difference Result 1765 states and 5135 transitions. [2022-03-15 15:23:29,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:23:29,896 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 [2022-03-15 15:23:29,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:29,898 INFO L225 Difference]: With dead ends: 1765 [2022-03-15 15:23:29,898 INFO L226 Difference]: Without dead ends: 1626 [2022-03-15 15:23:29,898 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 [2022-03-15 15:23:29,898 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 57 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:23:29,898 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] [2022-03-15 15:23:29,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1626 states. [2022-03-15 15:23:29,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1626 to 1511. [2022-03-15 15:23:29,916 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) [2022-03-15 15:23:29,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1511 states to 1511 states and 4436 transitions. [2022-03-15 15:23:29,931 INFO L78 Accepts]: Start accepts. Automaton has 1511 states and 4436 transitions. Word has length 26 [2022-03-15 15:23:29,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:29,931 INFO L470 AbstractCegarLoop]: Abstraction has 1511 states and 4436 transitions. [2022-03-15 15:23:29,931 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) [2022-03-15 15:23:29,931 INFO L276 IsEmpty]: Start isEmpty. Operand 1511 states and 4436 transitions. [2022-03-15 15:23:29,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:29,933 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:29,933 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:29,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2022-03-15 15:23:29,934 INFO L402 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:29,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:29,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1225335621, now seen corresponding path program 111 times [2022-03-15 15:23:29,934 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:29,934 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134633198] [2022-03-15 15:23:29,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:29,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:29,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:30,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:30,018 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:30,018 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134633198] [2022-03-15 15:23:30,018 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134633198] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:30,018 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:30,018 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:30,018 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613537149] [2022-03-15 15:23:30,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:30,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:30,019 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:30,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:30,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:30,019 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) [2022-03-15 15:23:30,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:30,296 INFO L93 Difference]: Finished difference Result 1727 states and 5019 transitions. [2022-03-15 15:23:30,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:30,296 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:30,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:30,299 INFO L225 Difference]: With dead ends: 1727 [2022-03-15 15:23:30,299 INFO L226 Difference]: Without dead ends: 1595 [2022-03-15 15:23:30,299 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 [2022-03-15 15:23:30,299 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 15:23:30,299 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 290 Invalid, 745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 733 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 15:23:30,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1595 states. [2022-03-15 15:23:30,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1595 to 1473. [2022-03-15 15:23:30,312 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) [2022-03-15 15:23:30,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1473 states to 1473 states and 4332 transitions. [2022-03-15 15:23:30,314 INFO L78 Accepts]: Start accepts. Automaton has 1473 states and 4332 transitions. Word has length 26 [2022-03-15 15:23:30,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:30,314 INFO L470 AbstractCegarLoop]: Abstraction has 1473 states and 4332 transitions. [2022-03-15 15:23:30,314 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) [2022-03-15 15:23:30,314 INFO L276 IsEmpty]: Start isEmpty. Operand 1473 states and 4332 transitions. [2022-03-15 15:23:30,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:30,316 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:30,316 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] [2022-03-15 15:23:30,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2022-03-15 15:23:30,316 INFO L402 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:30,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:30,316 INFO L85 PathProgramCache]: Analyzing trace with hash 684125531, now seen corresponding path program 112 times [2022-03-15 15:23:30,316 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:30,316 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039162887] [2022-03-15 15:23:30,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:30,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:30,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:30,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:30,381 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:30,381 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039162887] [2022-03-15 15:23:30,381 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039162887] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:30,381 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:30,381 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:23:30,381 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480892762] [2022-03-15 15:23:30,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:30,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:23:30,381 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:30,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:23:30,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:23:30,381 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) [2022-03-15 15:23:30,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:30,594 INFO L93 Difference]: Finished difference Result 1775 states and 5127 transitions. [2022-03-15 15:23:30,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:23:30,594 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 [2022-03-15 15:23:30,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:30,597 INFO L225 Difference]: With dead ends: 1775 [2022-03-15 15:23:30,597 INFO L226 Difference]: Without dead ends: 1647 [2022-03-15 15:23:30,597 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 [2022-03-15 15:23:30,597 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 54 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:23:30,597 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] [2022-03-15 15:23:30,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1647 states. [2022-03-15 15:23:30,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1647 to 1525. [2022-03-15 15:23:30,611 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) [2022-03-15 15:23:30,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1525 states to 1525 states and 4461 transitions. [2022-03-15 15:23:30,613 INFO L78 Accepts]: Start accepts. Automaton has 1525 states and 4461 transitions. Word has length 26 [2022-03-15 15:23:30,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:30,613 INFO L470 AbstractCegarLoop]: Abstraction has 1525 states and 4461 transitions. [2022-03-15 15:23:30,613 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) [2022-03-15 15:23:30,613 INFO L276 IsEmpty]: Start isEmpty. Operand 1525 states and 4461 transitions. [2022-03-15 15:23:30,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:30,615 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:30,615 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:30,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2022-03-15 15:23:30,615 INFO L402 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:30,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:30,615 INFO L85 PathProgramCache]: Analyzing trace with hash -745691017, now seen corresponding path program 113 times [2022-03-15 15:23:30,615 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:30,615 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818259439] [2022-03-15 15:23:30,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:30,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:30,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:30,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:30,690 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:30,690 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818259439] [2022-03-15 15:23:30,690 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818259439] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:30,690 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:30,690 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:30,690 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951316868] [2022-03-15 15:23:30,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:30,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:30,691 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:30,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:30,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:30,691 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) [2022-03-15 15:23:30,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:30,943 INFO L93 Difference]: Finished difference Result 1738 states and 5008 transitions. [2022-03-15 15:23:30,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:30,943 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:30,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:30,946 INFO L225 Difference]: With dead ends: 1738 [2022-03-15 15:23:30,946 INFO L226 Difference]: Without dead ends: 1633 [2022-03-15 15:23:30,946 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:30,946 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 [2022-03-15 15:23:30,946 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] [2022-03-15 15:23:30,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1633 states. [2022-03-15 15:23:30,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1633 to 1501. [2022-03-15 15:23:30,959 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) [2022-03-15 15:23:30,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1501 states to 1501 states and 4399 transitions. [2022-03-15 15:23:30,962 INFO L78 Accepts]: Start accepts. Automaton has 1501 states and 4399 transitions. Word has length 26 [2022-03-15 15:23:30,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:30,962 INFO L470 AbstractCegarLoop]: Abstraction has 1501 states and 4399 transitions. [2022-03-15 15:23:30,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:30,962 INFO L276 IsEmpty]: Start isEmpty. Operand 1501 states and 4399 transitions. [2022-03-15 15:23:30,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:30,963 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:30,964 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:30,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2022-03-15 15:23:30,964 INFO L402 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:30,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:30,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1457016233, now seen corresponding path program 114 times [2022-03-15 15:23:30,964 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:30,964 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162691046] [2022-03-15 15:23:30,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:30,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:30,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:31,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:31,064 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:31,064 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162691046] [2022-03-15 15:23:31,064 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162691046] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:31,064 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:31,064 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:31,064 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439263982] [2022-03-15 15:23:31,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:31,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:31,064 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:31,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:31,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:31,065 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) [2022-03-15 15:23:31,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:31,313 INFO L93 Difference]: Finished difference Result 1652 states and 4785 transitions. [2022-03-15 15:23:31,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:31,313 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:31,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:31,316 INFO L225 Difference]: With dead ends: 1652 [2022-03-15 15:23:31,316 INFO L226 Difference]: Without dead ends: 1573 [2022-03-15 15:23:31,316 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 [2022-03-15 15:23:31,316 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 [2022-03-15 15:23:31,316 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] [2022-03-15 15:23:31,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1573 states. [2022-03-15 15:23:31,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1573 to 1507. [2022-03-15 15:23:31,339 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) [2022-03-15 15:23:31,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 4409 transitions. [2022-03-15 15:23:31,341 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 4409 transitions. Word has length 26 [2022-03-15 15:23:31,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:31,342 INFO L470 AbstractCegarLoop]: Abstraction has 1507 states and 4409 transitions. [2022-03-15 15:23:31,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:31,342 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 4409 transitions. [2022-03-15 15:23:31,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:31,343 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:31,343 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:31,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2022-03-15 15:23:31,344 INFO L402 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:31,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:31,344 INFO L85 PathProgramCache]: Analyzing trace with hash 901650137, now seen corresponding path program 115 times [2022-03-15 15:23:31,344 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:31,344 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342782858] [2022-03-15 15:23:31,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:31,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:31,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:31,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:31,437 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:31,438 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342782858] [2022-03-15 15:23:31,438 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342782858] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:31,438 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:31,438 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:31,438 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078577815] [2022-03-15 15:23:31,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:31,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:31,438 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:31,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:31,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:31,438 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) [2022-03-15 15:23:31,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:31,699 INFO L93 Difference]: Finished difference Result 1745 states and 5047 transitions. [2022-03-15 15:23:31,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:31,699 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:31,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:31,702 INFO L225 Difference]: With dead ends: 1745 [2022-03-15 15:23:31,702 INFO L226 Difference]: Without dead ends: 1641 [2022-03-15 15:23:31,702 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:31,702 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 [2022-03-15 15:23:31,702 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] [2022-03-15 15:23:31,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1641 states. [2022-03-15 15:23:31,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1641 to 1499. [2022-03-15 15:23:31,715 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) [2022-03-15 15:23:31,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1499 states to 1499 states and 4394 transitions. [2022-03-15 15:23:31,718 INFO L78 Accepts]: Start accepts. Automaton has 1499 states and 4394 transitions. Word has length 26 [2022-03-15 15:23:31,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:31,718 INFO L470 AbstractCegarLoop]: Abstraction has 1499 states and 4394 transitions. [2022-03-15 15:23:31,718 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:31,718 INFO L276 IsEmpty]: Start isEmpty. Operand 1499 states and 4394 transitions. [2022-03-15 15:23:31,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:31,719 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:31,719 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:31,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2022-03-15 15:23:31,720 INFO L402 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:31,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:31,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1269022521, now seen corresponding path program 116 times [2022-03-15 15:23:31,720 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:31,720 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003460349] [2022-03-15 15:23:31,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:31,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:31,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:31,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:31,814 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:31,814 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003460349] [2022-03-15 15:23:31,814 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003460349] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:31,814 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:31,814 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:31,814 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863375282] [2022-03-15 15:23:31,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:31,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:31,814 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:31,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:31,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:31,815 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) [2022-03-15 15:23:32,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:32,061 INFO L93 Difference]: Finished difference Result 1652 states and 4784 transitions. [2022-03-15 15:23:32,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:32,061 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:32,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:32,064 INFO L225 Difference]: With dead ends: 1652 [2022-03-15 15:23:32,064 INFO L226 Difference]: Without dead ends: 1573 [2022-03-15 15:23:32,064 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 [2022-03-15 15:23:32,064 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 [2022-03-15 15:23:32,064 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] [2022-03-15 15:23:32,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1573 states. [2022-03-15 15:23:32,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1573 to 1493. [2022-03-15 15:23:32,077 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) [2022-03-15 15:23:32,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1493 states to 1493 states and 4384 transitions. [2022-03-15 15:23:32,079 INFO L78 Accepts]: Start accepts. Automaton has 1493 states and 4384 transitions. Word has length 26 [2022-03-15 15:23:32,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:32,079 INFO L470 AbstractCegarLoop]: Abstraction has 1493 states and 4384 transitions. [2022-03-15 15:23:32,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:32,079 INFO L276 IsEmpty]: Start isEmpty. Operand 1493 states and 4384 transitions. [2022-03-15 15:23:32,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:32,081 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:32,081 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:32,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2022-03-15 15:23:32,081 INFO L402 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:32,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:32,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1046261569, now seen corresponding path program 117 times [2022-03-15 15:23:32,081 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:32,081 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717789145] [2022-03-15 15:23:32,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:32,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:32,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:32,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:32,153 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:32,153 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717789145] [2022-03-15 15:23:32,153 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717789145] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:32,153 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:32,153 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:32,153 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971165375] [2022-03-15 15:23:32,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:32,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:32,153 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:32,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:32,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:32,154 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) [2022-03-15 15:23:32,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:32,411 INFO L93 Difference]: Finished difference Result 1700 states and 4918 transitions. [2022-03-15 15:23:32,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:32,411 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 [2022-03-15 15:23:32,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:32,413 INFO L225 Difference]: With dead ends: 1700 [2022-03-15 15:23:32,413 INFO L226 Difference]: Without dead ends: 1604 [2022-03-15 15:23:32,413 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:32,414 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 [2022-03-15 15:23:32,414 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] [2022-03-15 15:23:32,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2022-03-15 15:23:32,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 1481. [2022-03-15 15:23:32,427 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) [2022-03-15 15:23:32,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1481 states to 1481 states and 4361 transitions. [2022-03-15 15:23:32,429 INFO L78 Accepts]: Start accepts. Automaton has 1481 states and 4361 transitions. Word has length 26 [2022-03-15 15:23:32,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:32,429 INFO L470 AbstractCegarLoop]: Abstraction has 1481 states and 4361 transitions. [2022-03-15 15:23:32,429 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:32,429 INFO L276 IsEmpty]: Start isEmpty. Operand 1481 states and 4361 transitions. [2022-03-15 15:23:32,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:32,431 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:32,431 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:32,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2022-03-15 15:23:32,431 INFO L402 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:32,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:32,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1875949507, now seen corresponding path program 118 times [2022-03-15 15:23:32,431 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:32,431 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428193570] [2022-03-15 15:23:32,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:32,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:32,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:32,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:32,510 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:32,510 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428193570] [2022-03-15 15:23:32,510 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428193570] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:32,510 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:32,510 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:23:32,510 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114802368] [2022-03-15 15:23:32,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:32,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:23:32,510 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:32,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:23:32,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:23:32,511 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) [2022-03-15 15:23:32,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:32,718 INFO L93 Difference]: Finished difference Result 1724 states and 4976 transitions. [2022-03-15 15:23:32,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:23:32,719 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 [2022-03-15 15:23:32,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:32,721 INFO L225 Difference]: With dead ends: 1724 [2022-03-15 15:23:32,721 INFO L226 Difference]: Without dead ends: 1560 [2022-03-15 15:23:32,721 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 [2022-03-15 15:23:32,722 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 55 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 571 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:23:32,722 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] [2022-03-15 15:23:32,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1560 states. [2022-03-15 15:23:32,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1560 to 1470. [2022-03-15 15:23:32,744 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) [2022-03-15 15:23:32,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 4309 transitions. [2022-03-15 15:23:32,746 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 4309 transitions. Word has length 26 [2022-03-15 15:23:32,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:32,746 INFO L470 AbstractCegarLoop]: Abstraction has 1470 states and 4309 transitions. [2022-03-15 15:23:32,746 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) [2022-03-15 15:23:32,746 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 4309 transitions. [2022-03-15 15:23:32,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:32,748 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:32,748 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:32,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2022-03-15 15:23:32,748 INFO L402 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:32,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:32,749 INFO L85 PathProgramCache]: Analyzing trace with hash 989201241, now seen corresponding path program 119 times [2022-03-15 15:23:32,749 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:32,749 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189032257] [2022-03-15 15:23:32,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:32,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:32,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:32,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:32,825 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:32,825 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189032257] [2022-03-15 15:23:32,825 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189032257] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:32,825 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:32,825 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:32,825 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169807413] [2022-03-15 15:23:32,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:32,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:32,825 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:32,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:32,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:32,825 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) [2022-03-15 15:23:33,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:33,076 INFO L93 Difference]: Finished difference Result 1671 states and 4816 transitions. [2022-03-15 15:23:33,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:33,077 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:33,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:33,079 INFO L225 Difference]: With dead ends: 1671 [2022-03-15 15:23:33,079 INFO L226 Difference]: Without dead ends: 1566 [2022-03-15 15:23:33,079 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:33,079 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 [2022-03-15 15:23:33,079 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] [2022-03-15 15:23:33,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1566 states. [2022-03-15 15:23:33,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1566 to 1446. [2022-03-15 15:23:33,092 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) [2022-03-15 15:23:33,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1446 states to 1446 states and 4243 transitions. [2022-03-15 15:23:33,094 INFO L78 Accepts]: Start accepts. Automaton has 1446 states and 4243 transitions. Word has length 26 [2022-03-15 15:23:33,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:33,094 INFO L470 AbstractCegarLoop]: Abstraction has 1446 states and 4243 transitions. [2022-03-15 15:23:33,094 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:33,094 INFO L276 IsEmpty]: Start isEmpty. Operand 1446 states and 4243 transitions. [2022-03-15 15:23:33,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:33,095 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:33,095 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:33,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2022-03-15 15:23:33,096 INFO L402 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:33,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:33,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1106458743, now seen corresponding path program 120 times [2022-03-15 15:23:33,096 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:33,096 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031853793] [2022-03-15 15:23:33,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:33,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:33,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:33,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:33,179 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:33,179 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031853793] [2022-03-15 15:23:33,179 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031853793] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:33,179 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:33,179 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:33,179 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896149819] [2022-03-15 15:23:33,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:33,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:33,180 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:33,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:33,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:33,180 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) [2022-03-15 15:23:33,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:33,454 INFO L93 Difference]: Finished difference Result 1597 states and 4640 transitions. [2022-03-15 15:23:33,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:33,454 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 [2022-03-15 15:23:33,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:33,457 INFO L225 Difference]: With dead ends: 1597 [2022-03-15 15:23:33,457 INFO L226 Difference]: Without dead ends: 1518 [2022-03-15 15:23:33,457 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 [2022-03-15 15:23:33,457 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 15:23:33,457 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 264 Invalid, 693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 683 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 15:23:33,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1518 states. [2022-03-15 15:23:33,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1518 to 1448. [2022-03-15 15:23:33,470 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) [2022-03-15 15:23:33,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 4250 transitions. [2022-03-15 15:23:33,472 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 4250 transitions. Word has length 26 [2022-03-15 15:23:33,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:33,472 INFO L470 AbstractCegarLoop]: Abstraction has 1448 states and 4250 transitions. [2022-03-15 15:23:33,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:33,473 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 4250 transitions. [2022-03-15 15:23:33,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:33,474 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:33,474 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] [2022-03-15 15:23:33,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2022-03-15 15:23:33,474 INFO L402 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:33,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:33,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1442566335, now seen corresponding path program 121 times [2022-03-15 15:23:33,475 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:33,475 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580230294] [2022-03-15 15:23:33,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:33,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:33,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:33,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:33,575 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:33,575 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580230294] [2022-03-15 15:23:33,575 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580230294] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:33,575 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:33,575 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:33,575 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310567010] [2022-03-15 15:23:33,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:33,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:33,576 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:33,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:33,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:33,576 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) [2022-03-15 15:23:33,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:33,890 INFO L93 Difference]: Finished difference Result 1668 states and 4799 transitions. [2022-03-15 15:23:33,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:33,890 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:33,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:33,893 INFO L225 Difference]: With dead ends: 1668 [2022-03-15 15:23:33,893 INFO L226 Difference]: Without dead ends: 1579 [2022-03-15 15:23:33,893 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 [2022-03-15 15:23:33,893 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 15:23:33,893 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 266 Invalid, 710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 698 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 15:23:33,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1579 states. [2022-03-15 15:23:33,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1579 to 1445. [2022-03-15 15:23:33,905 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) [2022-03-15 15:23:33,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 4236 transitions. [2022-03-15 15:23:33,907 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 4236 transitions. Word has length 26 [2022-03-15 15:23:33,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:33,907 INFO L470 AbstractCegarLoop]: Abstraction has 1445 states and 4236 transitions. [2022-03-15 15:23:33,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:33,908 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 4236 transitions. [2022-03-15 15:23:33,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:33,909 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:33,909 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:33,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2022-03-15 15:23:33,909 INFO L402 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:33,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:33,909 INFO L85 PathProgramCache]: Analyzing trace with hash -462469799, now seen corresponding path program 122 times [2022-03-15 15:23:33,910 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:33,910 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370614969] [2022-03-15 15:23:33,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:33,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:33,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:33,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:33,990 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:33,990 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370614969] [2022-03-15 15:23:33,990 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370614969] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:33,990 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:33,990 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:33,990 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691204888] [2022-03-15 15:23:33,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:33,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:33,990 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:33,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:33,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:33,991 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) [2022-03-15 15:23:34,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:34,231 INFO L93 Difference]: Finished difference Result 1656 states and 4808 transitions. [2022-03-15 15:23:34,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:34,231 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:34,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:34,234 INFO L225 Difference]: With dead ends: 1656 [2022-03-15 15:23:34,234 INFO L226 Difference]: Without dead ends: 1553 [2022-03-15 15:23:34,234 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 [2022-03-15 15:23:34,234 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 [2022-03-15 15:23:34,234 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] [2022-03-15 15:23:34,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1553 states. [2022-03-15 15:23:34,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1553 to 1387. [2022-03-15 15:23:34,256 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) [2022-03-15 15:23:34,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1387 states to 1387 states and 4096 transitions. [2022-03-15 15:23:34,258 INFO L78 Accepts]: Start accepts. Automaton has 1387 states and 4096 transitions. Word has length 26 [2022-03-15 15:23:34,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:34,258 INFO L470 AbstractCegarLoop]: Abstraction has 1387 states and 4096 transitions. [2022-03-15 15:23:34,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:34,258 INFO L276 IsEmpty]: Start isEmpty. Operand 1387 states and 4096 transitions. [2022-03-15 15:23:34,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:34,260 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:34,260 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:34,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2022-03-15 15:23:34,260 INFO L402 AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:34,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:34,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1616183895, now seen corresponding path program 123 times [2022-03-15 15:23:34,260 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:34,260 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837415965] [2022-03-15 15:23:34,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:34,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:34,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:34,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:34,352 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:34,352 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837415965] [2022-03-15 15:23:34,352 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837415965] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:34,353 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:34,353 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:34,353 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465395005] [2022-03-15 15:23:34,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:34,353 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:34,353 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:34,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:34,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:34,353 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) [2022-03-15 15:23:34,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:34,593 INFO L93 Difference]: Finished difference Result 1532 states and 4467 transitions. [2022-03-15 15:23:34,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:34,593 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:34,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:34,595 INFO L225 Difference]: With dead ends: 1532 [2022-03-15 15:23:34,596 INFO L226 Difference]: Without dead ends: 1453 [2022-03-15 15:23:34,596 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 [2022-03-15 15:23:34,596 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 [2022-03-15 15:23:34,596 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] [2022-03-15 15:23:34,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1453 states. [2022-03-15 15:23:34,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1453 to 1388. [2022-03-15 15:23:34,608 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) [2022-03-15 15:23:34,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 4100 transitions. [2022-03-15 15:23:34,610 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 4100 transitions. Word has length 26 [2022-03-15 15:23:34,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:34,610 INFO L470 AbstractCegarLoop]: Abstraction has 1388 states and 4100 transitions. [2022-03-15 15:23:34,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:34,610 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 4100 transitions. [2022-03-15 15:23:34,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:34,612 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:34,612 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:34,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2022-03-15 15:23:34,612 INFO L402 AbstractCegarLoop]: === Iteration 126 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:34,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:34,612 INFO L85 PathProgramCache]: Analyzing trace with hash -320117031, now seen corresponding path program 124 times [2022-03-15 15:23:34,612 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:34,612 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824139300] [2022-03-15 15:23:34,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:34,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:34,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:34,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:34,689 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:34,689 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824139300] [2022-03-15 15:23:34,689 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824139300] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:34,689 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:34,689 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:34,689 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281637927] [2022-03-15 15:23:34,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:34,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:34,690 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:34,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:34,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:34,690 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) [2022-03-15 15:23:34,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:34,947 INFO L93 Difference]: Finished difference Result 1568 states and 4567 transitions. [2022-03-15 15:23:34,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:34,948 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:34,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:34,950 INFO L225 Difference]: With dead ends: 1568 [2022-03-15 15:23:34,950 INFO L226 Difference]: Without dead ends: 1464 [2022-03-15 15:23:34,950 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:34,950 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 [2022-03-15 15:23:34,950 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] [2022-03-15 15:23:34,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1464 states. [2022-03-15 15:23:34,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1464 to 1391. [2022-03-15 15:23:34,962 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) [2022-03-15 15:23:34,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1391 states to 1391 states and 4109 transitions. [2022-03-15 15:23:34,964 INFO L78 Accepts]: Start accepts. Automaton has 1391 states and 4109 transitions. Word has length 26 [2022-03-15 15:23:34,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:34,964 INFO L470 AbstractCegarLoop]: Abstraction has 1391 states and 4109 transitions. [2022-03-15 15:23:34,964 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:34,964 INFO L276 IsEmpty]: Start isEmpty. Operand 1391 states and 4109 transitions. [2022-03-15 15:23:34,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:34,966 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:34,966 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:34,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2022-03-15 15:23:34,966 INFO L402 AbstractCegarLoop]: === Iteration 127 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:34,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:34,966 INFO L85 PathProgramCache]: Analyzing trace with hash 47255353, now seen corresponding path program 125 times [2022-03-15 15:23:34,966 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:34,966 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949013808] [2022-03-15 15:23:34,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:34,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:34,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:35,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:35,046 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:35,046 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949013808] [2022-03-15 15:23:35,047 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949013808] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:35,047 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:35,047 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:35,047 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366999738] [2022-03-15 15:23:35,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:35,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:35,047 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:35,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:35,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:35,047 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) [2022-03-15 15:23:35,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:35,285 INFO L93 Difference]: Finished difference Result 1536 states and 4479 transitions. [2022-03-15 15:23:35,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:35,285 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:35,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:35,287 INFO L225 Difference]: With dead ends: 1536 [2022-03-15 15:23:35,287 INFO L226 Difference]: Without dead ends: 1457 [2022-03-15 15:23:35,287 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 [2022-03-15 15:23:35,288 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 [2022-03-15 15:23:35,288 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] [2022-03-15 15:23:35,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1457 states. [2022-03-15 15:23:35,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1457 to 1392. [2022-03-15 15:23:35,300 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) [2022-03-15 15:23:35,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 4113 transitions. [2022-03-15 15:23:35,302 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 4113 transitions. Word has length 26 [2022-03-15 15:23:35,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:35,302 INFO L470 AbstractCegarLoop]: Abstraction has 1392 states and 4113 transitions. [2022-03-15 15:23:35,302 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:35,303 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 4113 transitions. [2022-03-15 15:23:35,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:35,304 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:35,304 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] [2022-03-15 15:23:35,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2022-03-15 15:23:35,304 INFO L402 AbstractCegarLoop]: === Iteration 128 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:35,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:35,305 INFO L85 PathProgramCache]: Analyzing trace with hash 2026938559, now seen corresponding path program 126 times [2022-03-15 15:23:35,305 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:35,305 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059713643] [2022-03-15 15:23:35,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:35,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:35,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:35,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:35,385 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:35,385 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059713643] [2022-03-15 15:23:35,385 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059713643] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:35,385 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:35,385 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:35,385 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181111650] [2022-03-15 15:23:35,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:35,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:35,387 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:35,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:35,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:35,388 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) [2022-03-15 15:23:35,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:35,630 INFO L93 Difference]: Finished difference Result 1543 states and 4492 transitions. [2022-03-15 15:23:35,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:35,630 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:35,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:35,632 INFO L225 Difference]: With dead ends: 1543 [2022-03-15 15:23:35,632 INFO L226 Difference]: Without dead ends: 1460 [2022-03-15 15:23:35,633 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:35,633 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 [2022-03-15 15:23:35,633 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] [2022-03-15 15:23:35,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1460 states. [2022-03-15 15:23:35,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1460 to 1393. [2022-03-15 15:23:35,655 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) [2022-03-15 15:23:35,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1393 states to 1393 states and 4115 transitions. [2022-03-15 15:23:35,657 INFO L78 Accepts]: Start accepts. Automaton has 1393 states and 4115 transitions. Word has length 26 [2022-03-15 15:23:35,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:35,658 INFO L470 AbstractCegarLoop]: Abstraction has 1393 states and 4115 transitions. [2022-03-15 15:23:35,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:35,658 INFO L276 IsEmpty]: Start isEmpty. Operand 1393 states and 4115 transitions. [2022-03-15 15:23:35,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:35,659 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:35,659 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:35,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2022-03-15 15:23:35,660 INFO L402 AbstractCegarLoop]: === Iteration 129 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:35,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:35,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1622607935, now seen corresponding path program 127 times [2022-03-15 15:23:35,660 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:35,660 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354928043] [2022-03-15 15:23:35,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:35,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:35,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:35,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:35,745 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:35,745 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354928043] [2022-03-15 15:23:35,745 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354928043] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:35,745 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:35,745 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:35,746 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195982955] [2022-03-15 15:23:35,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:35,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:35,746 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:35,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:35,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:35,746 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) [2022-03-15 15:23:36,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:36,064 INFO L93 Difference]: Finished difference Result 1572 states and 4601 transitions. [2022-03-15 15:23:36,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:36,064 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:36,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:36,067 INFO L225 Difference]: With dead ends: 1572 [2022-03-15 15:23:36,067 INFO L226 Difference]: Without dead ends: 1475 [2022-03-15 15:23:36,067 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 [2022-03-15 15:23:36,067 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 50 mSDsluCounter, 473 mSDsCounter, 0 mSdLazyCounter, 710 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 15:23:36,067 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 233 Invalid, 722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 710 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 15:23:36,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1475 states. [2022-03-15 15:23:36,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1475 to 1390. [2022-03-15 15:23:36,080 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) [2022-03-15 15:23:36,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1390 states to 1390 states and 4104 transitions. [2022-03-15 15:23:36,082 INFO L78 Accepts]: Start accepts. Automaton has 1390 states and 4104 transitions. Word has length 26 [2022-03-15 15:23:36,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:36,082 INFO L470 AbstractCegarLoop]: Abstraction has 1390 states and 4104 transitions. [2022-03-15 15:23:36,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:36,082 INFO L276 IsEmpty]: Start isEmpty. Operand 1390 states and 4104 transitions. [2022-03-15 15:23:36,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:36,084 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:36,084 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] [2022-03-15 15:23:36,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2022-03-15 15:23:36,084 INFO L402 AbstractCegarLoop]: === Iteration 130 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:36,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:36,085 INFO L85 PathProgramCache]: Analyzing trace with hash -1534671201, now seen corresponding path program 128 times [2022-03-15 15:23:36,085 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:36,085 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960322760] [2022-03-15 15:23:36,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:36,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:36,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:36,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:36,170 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:36,170 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960322760] [2022-03-15 15:23:36,170 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960322760] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:36,170 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:36,171 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:36,171 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529717312] [2022-03-15 15:23:36,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:36,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:36,171 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:36,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:36,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:36,171 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) [2022-03-15 15:23:36,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:36,413 INFO L93 Difference]: Finished difference Result 1586 states and 4616 transitions. [2022-03-15 15:23:36,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:36,414 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:36,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:36,416 INFO L225 Difference]: With dead ends: 1586 [2022-03-15 15:23:36,416 INFO L226 Difference]: Without dead ends: 1498 [2022-03-15 15:23:36,416 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:36,416 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 [2022-03-15 15:23:36,416 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] [2022-03-15 15:23:36,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1498 states. [2022-03-15 15:23:36,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1498 to 1391. [2022-03-15 15:23:36,428 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) [2022-03-15 15:23:36,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1391 states to 1391 states and 4105 transitions. [2022-03-15 15:23:36,430 INFO L78 Accepts]: Start accepts. Automaton has 1391 states and 4105 transitions. Word has length 26 [2022-03-15 15:23:36,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:36,430 INFO L470 AbstractCegarLoop]: Abstraction has 1391 states and 4105 transitions. [2022-03-15 15:23:36,430 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:36,431 INFO L276 IsEmpty]: Start isEmpty. Operand 1391 states and 4105 transitions. [2022-03-15 15:23:36,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:36,432 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:36,432 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] [2022-03-15 15:23:36,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2022-03-15 15:23:36,432 INFO L402 AbstractCegarLoop]: === Iteration 131 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:36,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:36,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1409375929, now seen corresponding path program 129 times [2022-03-15 15:23:36,432 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:36,433 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398382625] [2022-03-15 15:23:36,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:36,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:36,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:36,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:36,516 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:36,517 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398382625] [2022-03-15 15:23:36,517 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398382625] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:36,517 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:36,517 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:36,517 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370697083] [2022-03-15 15:23:36,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:36,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:36,517 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:36,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:36,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:36,518 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) [2022-03-15 15:23:36,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:36,765 INFO L93 Difference]: Finished difference Result 1597 states and 4669 transitions. [2022-03-15 15:23:36,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:36,765 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:36,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:36,768 INFO L225 Difference]: With dead ends: 1597 [2022-03-15 15:23:36,768 INFO L226 Difference]: Without dead ends: 1518 [2022-03-15 15:23:36,768 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 [2022-03-15 15:23:36,768 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 [2022-03-15 15:23:36,768 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] [2022-03-15 15:23:36,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1518 states. [2022-03-15 15:23:36,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1518 to 1397. [2022-03-15 15:23:36,780 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) [2022-03-15 15:23:36,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1397 states to 1397 states and 4125 transitions. [2022-03-15 15:23:36,782 INFO L78 Accepts]: Start accepts. Automaton has 1397 states and 4125 transitions. Word has length 26 [2022-03-15 15:23:36,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:36,782 INFO L470 AbstractCegarLoop]: Abstraction has 1397 states and 4125 transitions. [2022-03-15 15:23:36,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:36,782 INFO L276 IsEmpty]: Start isEmpty. Operand 1397 states and 4125 transitions. [2022-03-15 15:23:36,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:36,784 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:36,784 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:36,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2022-03-15 15:23:36,784 INFO L402 AbstractCegarLoop]: === Iteration 132 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:36,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:36,784 INFO L85 PathProgramCache]: Analyzing trace with hash -526924997, now seen corresponding path program 130 times [2022-03-15 15:23:36,784 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:36,784 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818941622] [2022-03-15 15:23:36,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:36,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:36,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:36,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:36,862 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:36,862 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818941622] [2022-03-15 15:23:36,862 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818941622] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:36,862 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:36,862 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:36,862 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891698648] [2022-03-15 15:23:36,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:36,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:36,862 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:36,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:36,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:36,863 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) [2022-03-15 15:23:37,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:37,119 INFO L93 Difference]: Finished difference Result 1624 states and 4728 transitions. [2022-03-15 15:23:37,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:37,120 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:37,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:37,122 INFO L225 Difference]: With dead ends: 1624 [2022-03-15 15:23:37,122 INFO L226 Difference]: Without dead ends: 1520 [2022-03-15 15:23:37,122 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:37,122 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 [2022-03-15 15:23:37,122 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] [2022-03-15 15:23:37,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1520 states. [2022-03-15 15:23:37,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1520 to 1388. [2022-03-15 15:23:37,143 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) [2022-03-15 15:23:37,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 4091 transitions. [2022-03-15 15:23:37,145 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 4091 transitions. Word has length 26 [2022-03-15 15:23:37,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:37,145 INFO L470 AbstractCegarLoop]: Abstraction has 1388 states and 4091 transitions. [2022-03-15 15:23:37,145 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:37,145 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 4091 transitions. [2022-03-15 15:23:37,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:37,146 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:37,146 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:37,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2022-03-15 15:23:37,146 INFO L402 AbstractCegarLoop]: === Iteration 133 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:37,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:37,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1184088519, now seen corresponding path program 131 times [2022-03-15 15:23:37,147 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:37,147 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021407751] [2022-03-15 15:23:37,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:37,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:37,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:37,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:37,237 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:37,237 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021407751] [2022-03-15 15:23:37,237 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021407751] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:37,237 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:37,237 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:37,237 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784955604] [2022-03-15 15:23:37,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:37,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:37,237 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:37,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:37,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:37,238 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) [2022-03-15 15:23:37,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:37,484 INFO L93 Difference]: Finished difference Result 1580 states and 4623 transitions. [2022-03-15 15:23:37,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:37,484 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:37,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:37,486 INFO L225 Difference]: With dead ends: 1580 [2022-03-15 15:23:37,486 INFO L226 Difference]: Without dead ends: 1492 [2022-03-15 15:23:37,486 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 [2022-03-15 15:23:37,486 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 [2022-03-15 15:23:37,487 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] [2022-03-15 15:23:37,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1492 states. [2022-03-15 15:23:37,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1492 to 1389. [2022-03-15 15:23:37,498 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) [2022-03-15 15:23:37,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1389 states to 1389 states and 4096 transitions. [2022-03-15 15:23:37,500 INFO L78 Accepts]: Start accepts. Automaton has 1389 states and 4096 transitions. Word has length 26 [2022-03-15 15:23:37,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:37,500 INFO L470 AbstractCegarLoop]: Abstraction has 1389 states and 4096 transitions. [2022-03-15 15:23:37,501 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:37,501 INFO L276 IsEmpty]: Start isEmpty. Operand 1389 states and 4096 transitions. [2022-03-15 15:23:37,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:37,502 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:37,502 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:37,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2022-03-15 15:23:37,502 INFO L402 AbstractCegarLoop]: === Iteration 134 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:37,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:37,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1559673499, now seen corresponding path program 132 times [2022-03-15 15:23:37,503 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:37,503 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666085149] [2022-03-15 15:23:37,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:37,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:37,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:37,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:37,592 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:37,592 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666085149] [2022-03-15 15:23:37,592 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666085149] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:37,592 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:37,592 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:37,592 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996819982] [2022-03-15 15:23:37,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:37,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:37,593 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:37,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:37,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:37,593 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) [2022-03-15 15:23:37,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:37,847 INFO L93 Difference]: Finished difference Result 1516 states and 4425 transitions. [2022-03-15 15:23:37,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:37,847 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 [2022-03-15 15:23:37,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:37,849 INFO L225 Difference]: With dead ends: 1516 [2022-03-15 15:23:37,849 INFO L226 Difference]: Without dead ends: 1437 [2022-03-15 15:23:37,849 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 [2022-03-15 15:23:37,849 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 [2022-03-15 15:23:37,850 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] [2022-03-15 15:23:37,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1437 states. [2022-03-15 15:23:37,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1437 to 1388. [2022-03-15 15:23:37,861 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) [2022-03-15 15:23:37,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 4092 transitions. [2022-03-15 15:23:37,864 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 4092 transitions. Word has length 26 [2022-03-15 15:23:37,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:37,864 INFO L470 AbstractCegarLoop]: Abstraction has 1388 states and 4092 transitions. [2022-03-15 15:23:37,864 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:37,864 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 4092 transitions. [2022-03-15 15:23:37,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:37,865 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:37,865 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] [2022-03-15 15:23:37,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2022-03-15 15:23:37,865 INFO L402 AbstractCegarLoop]: === Iteration 135 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:37,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:37,866 INFO L85 PathProgramCache]: Analyzing trace with hash -755610591, now seen corresponding path program 133 times [2022-03-15 15:23:37,866 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:37,866 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852717042] [2022-03-15 15:23:37,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:37,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:37,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:37,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:37,948 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:37,949 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852717042] [2022-03-15 15:23:37,949 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852717042] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:37,949 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:37,949 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:37,949 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917685157] [2022-03-15 15:23:37,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:37,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:37,949 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:37,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:37,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:37,949 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) [2022-03-15 15:23:38,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:38,192 INFO L93 Difference]: Finished difference Result 1536 states and 4461 transitions. [2022-03-15 15:23:38,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:38,192 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:38,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:38,194 INFO L225 Difference]: With dead ends: 1536 [2022-03-15 15:23:38,194 INFO L226 Difference]: Without dead ends: 1453 [2022-03-15 15:23:38,194 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:38,195 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 [2022-03-15 15:23:38,195 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] [2022-03-15 15:23:38,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1453 states. [2022-03-15 15:23:38,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1453 to 1386. [2022-03-15 15:23:38,206 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) [2022-03-15 15:23:38,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1386 states to 1386 states and 4085 transitions. [2022-03-15 15:23:38,208 INFO L78 Accepts]: Start accepts. Automaton has 1386 states and 4085 transitions. Word has length 26 [2022-03-15 15:23:38,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:38,209 INFO L470 AbstractCegarLoop]: Abstraction has 1386 states and 4085 transitions. [2022-03-15 15:23:38,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:38,209 INFO L276 IsEmpty]: Start isEmpty. Operand 1386 states and 4085 transitions. [2022-03-15 15:23:38,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:38,210 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:38,210 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:38,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2022-03-15 15:23:38,210 INFO L402 AbstractCegarLoop]: === Iteration 136 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:38,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:38,211 INFO L85 PathProgramCache]: Analyzing trace with hash 167528953, now seen corresponding path program 134 times [2022-03-15 15:23:38,211 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:38,211 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64846955] [2022-03-15 15:23:38,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:38,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:38,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:38,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:38,299 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:38,299 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64846955] [2022-03-15 15:23:38,299 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64846955] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:38,299 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:38,299 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:38,299 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126458158] [2022-03-15 15:23:38,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:38,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:38,299 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:38,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:38,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:38,299 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) [2022-03-15 15:23:38,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:38,536 INFO L93 Difference]: Finished difference Result 1582 states and 4605 transitions. [2022-03-15 15:23:38,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:38,536 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:38,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:38,538 INFO L225 Difference]: With dead ends: 1582 [2022-03-15 15:23:38,539 INFO L226 Difference]: Without dead ends: 1497 [2022-03-15 15:23:38,539 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 [2022-03-15 15:23:38,539 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 [2022-03-15 15:23:38,539 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] [2022-03-15 15:23:38,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1497 states. [2022-03-15 15:23:38,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1497 to 1383. [2022-03-15 15:23:38,562 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) [2022-03-15 15:23:38,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1383 states to 1383 states and 4072 transitions. [2022-03-15 15:23:38,564 INFO L78 Accepts]: Start accepts. Automaton has 1383 states and 4072 transitions. Word has length 26 [2022-03-15 15:23:38,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:38,564 INFO L470 AbstractCegarLoop]: Abstraction has 1383 states and 4072 transitions. [2022-03-15 15:23:38,564 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:38,564 INFO L276 IsEmpty]: Start isEmpty. Operand 1383 states and 4072 transitions. [2022-03-15 15:23:38,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:38,565 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:38,565 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:38,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2022-03-15 15:23:38,566 INFO L402 AbstractCegarLoop]: === Iteration 137 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:38,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:38,566 INFO L85 PathProgramCache]: Analyzing trace with hash -2004677727, now seen corresponding path program 135 times [2022-03-15 15:23:38,566 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:38,566 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341734283] [2022-03-15 15:23:38,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:38,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:38,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:38,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:38,649 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:38,649 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341734283] [2022-03-15 15:23:38,649 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341734283] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:38,649 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:38,649 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:38,649 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517041057] [2022-03-15 15:23:38,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:38,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:38,650 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:38,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:38,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:38,650 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) [2022-03-15 15:23:38,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:38,897 INFO L93 Difference]: Finished difference Result 1557 states and 4506 transitions. [2022-03-15 15:23:38,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:38,897 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:38,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:38,900 INFO L225 Difference]: With dead ends: 1557 [2022-03-15 15:23:38,900 INFO L226 Difference]: Without dead ends: 1464 [2022-03-15 15:23:38,900 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 [2022-03-15 15:23:38,900 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 [2022-03-15 15:23:38,900 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] [2022-03-15 15:23:38,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1464 states. [2022-03-15 15:23:38,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1464 to 1372. [2022-03-15 15:23:38,912 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) [2022-03-15 15:23:38,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1372 states to 1372 states and 4050 transitions. [2022-03-15 15:23:38,914 INFO L78 Accepts]: Start accepts. Automaton has 1372 states and 4050 transitions. Word has length 26 [2022-03-15 15:23:38,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:38,914 INFO L470 AbstractCegarLoop]: Abstraction has 1372 states and 4050 transitions. [2022-03-15 15:23:38,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:38,915 INFO L276 IsEmpty]: Start isEmpty. Operand 1372 states and 4050 transitions. [2022-03-15 15:23:38,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:38,916 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:38,916 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:38,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2022-03-15 15:23:38,916 INFO L402 AbstractCegarLoop]: === Iteration 138 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:38,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:38,917 INFO L85 PathProgramCache]: Analyzing trace with hash -52542947, now seen corresponding path program 136 times [2022-03-15 15:23:38,917 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:38,917 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152271726] [2022-03-15 15:23:38,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:38,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:38,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:38,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:38,980 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:38,980 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152271726] [2022-03-15 15:23:38,980 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152271726] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:38,980 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:38,981 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 15:23:38,981 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079735531] [2022-03-15 15:23:38,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:38,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 15:23:38,981 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:38,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 15:23:38,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-03-15 15:23:38,981 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) [2022-03-15 15:23:39,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:39,138 INFO L93 Difference]: Finished difference Result 1654 states and 4846 transitions. [2022-03-15 15:23:39,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-15 15:23:39,138 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 [2022-03-15 15:23:39,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:39,141 INFO L225 Difference]: With dead ends: 1654 [2022-03-15 15:23:39,141 INFO L226 Difference]: Without dead ends: 1575 [2022-03-15 15:23:39,141 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 [2022-03-15 15:23:39,141 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 [2022-03-15 15:23:39,141 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] [2022-03-15 15:23:39,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1575 states. [2022-03-15 15:23:39,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1575 to 1438. [2022-03-15 15:23:39,153 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) [2022-03-15 15:23:39,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1438 states to 1438 states and 4247 transitions. [2022-03-15 15:23:39,155 INFO L78 Accepts]: Start accepts. Automaton has 1438 states and 4247 transitions. Word has length 26 [2022-03-15 15:23:39,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:39,156 INFO L470 AbstractCegarLoop]: Abstraction has 1438 states and 4247 transitions. [2022-03-15 15:23:39,156 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) [2022-03-15 15:23:39,156 INFO L276 IsEmpty]: Start isEmpty. Operand 1438 states and 4247 transitions. [2022-03-15 15:23:39,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:39,157 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:39,157 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:39,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2022-03-15 15:23:39,157 INFO L402 AbstractCegarLoop]: === Iteration 139 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:39,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:39,158 INFO L85 PathProgramCache]: Analyzing trace with hash 283564645, now seen corresponding path program 137 times [2022-03-15 15:23:39,158 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:39,158 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384616526] [2022-03-15 15:23:39,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:39,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:39,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:39,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:39,219 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:39,219 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384616526] [2022-03-15 15:23:39,219 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384616526] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:39,219 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:39,219 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:23:39,219 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579016318] [2022-03-15 15:23:39,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:39,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:23:39,220 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:39,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:23:39,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:23:39,220 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) [2022-03-15 15:23:39,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:39,415 INFO L93 Difference]: Finished difference Result 1749 states and 5118 transitions. [2022-03-15 15:23:39,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:23:39,415 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 [2022-03-15 15:23:39,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:39,417 INFO L225 Difference]: With dead ends: 1749 [2022-03-15 15:23:39,417 INFO L226 Difference]: Without dead ends: 1598 [2022-03-15 15:23:39,417 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 [2022-03-15 15:23:39,418 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 56 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:23:39,418 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] [2022-03-15 15:23:39,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1598 states. [2022-03-15 15:23:39,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1598 to 1426. [2022-03-15 15:23:39,435 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) [2022-03-15 15:23:39,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 4209 transitions. [2022-03-15 15:23:39,438 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 4209 transitions. Word has length 26 [2022-03-15 15:23:39,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:39,438 INFO L470 AbstractCegarLoop]: Abstraction has 1426 states and 4209 transitions. [2022-03-15 15:23:39,438 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) [2022-03-15 15:23:39,438 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 4209 transitions. [2022-03-15 15:23:39,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:39,440 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:39,440 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] [2022-03-15 15:23:39,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2022-03-15 15:23:39,440 INFO L402 AbstractCegarLoop]: === Iteration 140 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:39,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:39,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1770283717, now seen corresponding path program 138 times [2022-03-15 15:23:39,441 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:39,441 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923739454] [2022-03-15 15:23:39,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:39,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:39,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:39,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:39,505 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:39,505 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923739454] [2022-03-15 15:23:39,505 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923739454] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:39,505 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:39,505 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:23:39,506 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871607849] [2022-03-15 15:23:39,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:39,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:23:39,506 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:39,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:23:39,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:23:39,506 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) [2022-03-15 15:23:39,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:39,698 INFO L93 Difference]: Finished difference Result 1711 states and 4999 transitions. [2022-03-15 15:23:39,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:23:39,698 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 [2022-03-15 15:23:39,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:39,701 INFO L225 Difference]: With dead ends: 1711 [2022-03-15 15:23:39,701 INFO L226 Difference]: Without dead ends: 1632 [2022-03-15 15:23:39,701 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 [2022-03-15 15:23:39,701 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 [2022-03-15 15:23:39,701 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] [2022-03-15 15:23:39,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1632 states. [2022-03-15 15:23:39,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1632 to 1428. [2022-03-15 15:23:39,714 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) [2022-03-15 15:23:39,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 4214 transitions. [2022-03-15 15:23:39,717 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 4214 transitions. Word has length 26 [2022-03-15 15:23:39,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:39,717 INFO L470 AbstractCegarLoop]: Abstraction has 1428 states and 4214 transitions. [2022-03-15 15:23:39,717 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) [2022-03-15 15:23:39,717 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 4214 transitions. [2022-03-15 15:23:39,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:39,718 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:39,718 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:39,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2022-03-15 15:23:39,719 INFO L402 AbstractCegarLoop]: === Iteration 141 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:39,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:39,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1434176125, now seen corresponding path program 139 times [2022-03-15 15:23:39,719 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:39,719 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384604994] [2022-03-15 15:23:39,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:39,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:39,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:39,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:39,782 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:39,782 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384604994] [2022-03-15 15:23:39,782 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384604994] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:39,782 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:39,782 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:23:39,782 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692122388] [2022-03-15 15:23:39,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:39,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:23:39,782 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:39,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:23:39,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:23:39,782 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) [2022-03-15 15:23:39,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:39,995 INFO L93 Difference]: Finished difference Result 1743 states and 5115 transitions. [2022-03-15 15:23:39,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:23:39,995 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 [2022-03-15 15:23:39,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:39,998 INFO L225 Difference]: With dead ends: 1743 [2022-03-15 15:23:39,998 INFO L226 Difference]: Without dead ends: 1660 [2022-03-15 15:23:39,998 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 [2022-03-15 15:23:39,998 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 50 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 563 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:23:39,998 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] [2022-03-15 15:23:40,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1660 states. [2022-03-15 15:23:40,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1660 to 1428. [2022-03-15 15:23:40,012 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) [2022-03-15 15:23:40,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 4212 transitions. [2022-03-15 15:23:40,014 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 4212 transitions. Word has length 26 [2022-03-15 15:23:40,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:40,014 INFO L470 AbstractCegarLoop]: Abstraction has 1428 states and 4212 transitions. [2022-03-15 15:23:40,014 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) [2022-03-15 15:23:40,014 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 4212 transitions. [2022-03-15 15:23:40,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:40,016 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:40,016 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:40,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2022-03-15 15:23:40,016 INFO L402 AbstractCegarLoop]: === Iteration 142 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:40,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:40,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1375887461, now seen corresponding path program 140 times [2022-03-15 15:23:40,016 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:40,016 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956600177] [2022-03-15 15:23:40,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:40,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:40,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:40,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:40,077 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:40,077 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956600177] [2022-03-15 15:23:40,077 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956600177] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:40,077 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:40,077 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:23:40,078 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041094447] [2022-03-15 15:23:40,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:40,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:23:40,078 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:40,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:23:40,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:23:40,078 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) [2022-03-15 15:23:40,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:40,280 INFO L93 Difference]: Finished difference Result 1741 states and 5077 transitions. [2022-03-15 15:23:40,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:23:40,284 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 [2022-03-15 15:23:40,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:40,286 INFO L225 Difference]: With dead ends: 1741 [2022-03-15 15:23:40,286 INFO L226 Difference]: Without dead ends: 1630 [2022-03-15 15:23:40,286 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 [2022-03-15 15:23:40,286 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 52 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:23:40,287 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] [2022-03-15 15:23:40,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1630 states. [2022-03-15 15:23:40,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1630 to 1396. [2022-03-15 15:23:40,303 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) [2022-03-15 15:23:40,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1396 states to 1396 states and 4116 transitions. [2022-03-15 15:23:40,306 INFO L78 Accepts]: Start accepts. Automaton has 1396 states and 4116 transitions. Word has length 26 [2022-03-15 15:23:40,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:40,306 INFO L470 AbstractCegarLoop]: Abstraction has 1396 states and 4116 transitions. [2022-03-15 15:23:40,307 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) [2022-03-15 15:23:40,307 INFO L276 IsEmpty]: Start isEmpty. Operand 1396 states and 4116 transitions. [2022-03-15 15:23:40,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:40,309 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:40,309 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:40,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2022-03-15 15:23:40,309 INFO L402 AbstractCegarLoop]: === Iteration 143 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:40,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:40,309 INFO L85 PathProgramCache]: Analyzing trace with hash 780936475, now seen corresponding path program 141 times [2022-03-15 15:23:40,309 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:40,309 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864430229] [2022-03-15 15:23:40,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:40,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:40,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:40,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:40,373 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:40,373 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864430229] [2022-03-15 15:23:40,373 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864430229] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:40,373 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:40,373 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:23:40,373 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623902655] [2022-03-15 15:23:40,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:40,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:23:40,374 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:40,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:23:40,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:23:40,374 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) [2022-03-15 15:23:40,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:40,575 INFO L93 Difference]: Finished difference Result 1586 states and 4638 transitions. [2022-03-15 15:23:40,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:23:40,575 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 [2022-03-15 15:23:40,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:40,577 INFO L225 Difference]: With dead ends: 1586 [2022-03-15 15:23:40,578 INFO L226 Difference]: Without dead ends: 1507 [2022-03-15 15:23:40,578 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 [2022-03-15 15:23:40,578 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 45 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:23:40,578 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] [2022-03-15 15:23:40,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1507 states. [2022-03-15 15:23:40,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1507 to 1406. [2022-03-15 15:23:40,590 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) [2022-03-15 15:23:40,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1406 states to 1406 states and 4146 transitions. [2022-03-15 15:23:40,592 INFO L78 Accepts]: Start accepts. Automaton has 1406 states and 4146 transitions. Word has length 26 [2022-03-15 15:23:40,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:40,592 INFO L470 AbstractCegarLoop]: Abstraction has 1406 states and 4146 transitions. [2022-03-15 15:23:40,592 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) [2022-03-15 15:23:40,592 INFO L276 IsEmpty]: Start isEmpty. Operand 1406 states and 4146 transitions. [2022-03-15 15:23:40,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:40,593 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:40,593 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:40,594 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2022-03-15 15:23:40,594 INFO L402 AbstractCegarLoop]: === Iteration 144 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:40,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:40,594 INFO L85 PathProgramCache]: Analyzing trace with hash -1155364451, now seen corresponding path program 142 times [2022-03-15 15:23:40,594 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:40,594 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582182956] [2022-03-15 15:23:40,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:40,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:40,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:40,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:40,674 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:40,674 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582182956] [2022-03-15 15:23:40,674 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582182956] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:40,674 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:40,674 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:23:40,674 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386467272] [2022-03-15 15:23:40,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:40,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:23:40,675 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:40,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:23:40,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:23:40,675 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) [2022-03-15 15:23:40,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:40,898 INFO L93 Difference]: Finished difference Result 1622 states and 4736 transitions. [2022-03-15 15:23:40,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:23:40,899 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 [2022-03-15 15:23:40,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:40,901 INFO L225 Difference]: With dead ends: 1622 [2022-03-15 15:23:40,901 INFO L226 Difference]: Without dead ends: 1518 [2022-03-15 15:23:40,901 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 [2022-03-15 15:23:40,902 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 50 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:23:40,902 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] [2022-03-15 15:23:40,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1518 states. [2022-03-15 15:23:40,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1518 to 1422. [2022-03-15 15:23:40,914 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) [2022-03-15 15:23:40,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1422 states to 1422 states and 4195 transitions. [2022-03-15 15:23:40,916 INFO L78 Accepts]: Start accepts. Automaton has 1422 states and 4195 transitions. Word has length 26 [2022-03-15 15:23:40,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:40,916 INFO L470 AbstractCegarLoop]: Abstraction has 1422 states and 4195 transitions. [2022-03-15 15:23:40,916 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) [2022-03-15 15:23:40,916 INFO L276 IsEmpty]: Start isEmpty. Operand 1422 states and 4195 transitions. [2022-03-15 15:23:40,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:40,918 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:40,918 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] [2022-03-15 15:23:40,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2022-03-15 15:23:40,918 INFO L402 AbstractCegarLoop]: === Iteration 145 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:40,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:40,918 INFO L85 PathProgramCache]: Analyzing trace with hash -787992067, now seen corresponding path program 143 times [2022-03-15 15:23:40,918 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:40,918 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644343598] [2022-03-15 15:23:40,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:40,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:40,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:41,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:41,003 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:41,003 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644343598] [2022-03-15 15:23:41,003 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644343598] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:41,003 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:41,003 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:41,003 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008994113] [2022-03-15 15:23:41,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:41,003 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:41,003 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:41,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:41,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:41,004 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) [2022-03-15 15:23:41,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:41,283 INFO L93 Difference]: Finished difference Result 1651 states and 4814 transitions. [2022-03-15 15:23:41,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:41,284 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:41,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:41,286 INFO L225 Difference]: With dead ends: 1651 [2022-03-15 15:23:41,286 INFO L226 Difference]: Without dead ends: 1572 [2022-03-15 15:23:41,286 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 [2022-03-15 15:23:41,286 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 15:23:41,286 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 264 Invalid, 685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 675 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 15:23:41,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1572 states. [2022-03-15 15:23:41,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1572 to 1446. [2022-03-15 15:23:41,299 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) [2022-03-15 15:23:41,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1446 states to 1446 states and 4261 transitions. [2022-03-15 15:23:41,301 INFO L78 Accepts]: Start accepts. Automaton has 1446 states and 4261 transitions. Word has length 26 [2022-03-15 15:23:41,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:41,301 INFO L470 AbstractCegarLoop]: Abstraction has 1446 states and 4261 transitions. [2022-03-15 15:23:41,301 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:41,301 INFO L276 IsEmpty]: Start isEmpty. Operand 1446 states and 4261 transitions. [2022-03-15 15:23:41,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:41,303 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:41,303 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:41,303 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2022-03-15 15:23:41,303 INFO L402 AbstractCegarLoop]: === Iteration 146 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:41,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:41,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1191691139, now seen corresponding path program 144 times [2022-03-15 15:23:41,303 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:41,303 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506064954] [2022-03-15 15:23:41,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:41,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:41,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:41,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:41,395 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:41,396 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506064954] [2022-03-15 15:23:41,396 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506064954] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:41,396 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:41,396 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:41,396 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080415252] [2022-03-15 15:23:41,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:41,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:41,396 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:41,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:41,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:41,396 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) [2022-03-15 15:23:41,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:41,645 INFO L93 Difference]: Finished difference Result 1620 states and 4730 transitions. [2022-03-15 15:23:41,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:41,645 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:41,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:41,647 INFO L225 Difference]: With dead ends: 1620 [2022-03-15 15:23:41,648 INFO L226 Difference]: Without dead ends: 1509 [2022-03-15 15:23:41,648 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 [2022-03-15 15:23:41,648 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 [2022-03-15 15:23:41,648 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] [2022-03-15 15:23:41,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1509 states. [2022-03-15 15:23:41,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1509 to 1461. [2022-03-15 15:23:41,660 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) [2022-03-15 15:23:41,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1461 states to 1461 states and 4308 transitions. [2022-03-15 15:23:41,663 INFO L78 Accepts]: Start accepts. Automaton has 1461 states and 4308 transitions. Word has length 26 [2022-03-15 15:23:41,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:41,663 INFO L470 AbstractCegarLoop]: Abstraction has 1461 states and 4308 transitions. [2022-03-15 15:23:41,663 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) [2022-03-15 15:23:41,663 INFO L276 IsEmpty]: Start isEmpty. Operand 1461 states and 4308 transitions. [2022-03-15 15:23:41,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:41,664 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:41,664 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] [2022-03-15 15:23:41,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2022-03-15 15:23:41,665 INFO L402 AbstractCegarLoop]: === Iteration 147 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:41,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:41,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1837111941, now seen corresponding path program 145 times [2022-03-15 15:23:41,665 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:41,665 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372318537] [2022-03-15 15:23:41,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:41,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:41,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:41,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:41,741 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:41,742 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372318537] [2022-03-15 15:23:41,742 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372318537] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:41,742 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:41,742 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:41,742 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261771262] [2022-03-15 15:23:41,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:41,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:41,742 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:41,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:41,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:41,743 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) [2022-03-15 15:23:42,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:42,034 INFO L93 Difference]: Finished difference Result 1737 states and 5065 transitions. [2022-03-15 15:23:42,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:42,034 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:42,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:42,037 INFO L225 Difference]: With dead ends: 1737 [2022-03-15 15:23:42,037 INFO L226 Difference]: Without dead ends: 1640 [2022-03-15 15:23:42,037 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:42,037 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 15:23:42,037 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 267 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 724 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 15:23:42,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1640 states. [2022-03-15 15:23:42,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1640 to 1487. [2022-03-15 15:23:42,050 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) [2022-03-15 15:23:42,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1487 states to 1487 states and 4396 transitions. [2022-03-15 15:23:42,052 INFO L78 Accepts]: Start accepts. Automaton has 1487 states and 4396 transitions. Word has length 26 [2022-03-15 15:23:42,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:42,052 INFO L470 AbstractCegarLoop]: Abstraction has 1487 states and 4396 transitions. [2022-03-15 15:23:42,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:42,052 INFO L276 IsEmpty]: Start isEmpty. Operand 1487 states and 4396 transitions. [2022-03-15 15:23:42,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:42,054 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:42,054 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:42,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2022-03-15 15:23:42,054 INFO L402 AbstractCegarLoop]: === Iteration 148 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:42,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:42,054 INFO L85 PathProgramCache]: Analyzing trace with hash 1925048675, now seen corresponding path program 146 times [2022-03-15 15:23:42,054 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:42,054 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399004551] [2022-03-15 15:23:42,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:42,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:42,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:42,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:42,134 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:42,134 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399004551] [2022-03-15 15:23:42,134 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399004551] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:42,134 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:42,134 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:42,134 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588950703] [2022-03-15 15:23:42,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:42,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:42,134 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:42,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:42,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:42,135 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) [2022-03-15 15:23:42,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:42,385 INFO L93 Difference]: Finished difference Result 1672 states and 4884 transitions. [2022-03-15 15:23:42,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:42,385 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:42,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:42,387 INFO L225 Difference]: With dead ends: 1672 [2022-03-15 15:23:42,387 INFO L226 Difference]: Without dead ends: 1584 [2022-03-15 15:23:42,387 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:42,388 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 [2022-03-15 15:23:42,388 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] [2022-03-15 15:23:42,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1584 states. [2022-03-15 15:23:42,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1584 to 1485. [2022-03-15 15:23:42,401 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) [2022-03-15 15:23:42,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1485 states to 1485 states and 4391 transitions. [2022-03-15 15:23:42,403 INFO L78 Accepts]: Start accepts. Automaton has 1485 states and 4391 transitions. Word has length 26 [2022-03-15 15:23:42,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:42,403 INFO L470 AbstractCegarLoop]: Abstraction has 1485 states and 4391 transitions. [2022-03-15 15:23:42,403 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:42,403 INFO L276 IsEmpty]: Start isEmpty. Operand 1485 states and 4391 transitions. [2022-03-15 15:23:42,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:42,405 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:42,405 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:42,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2022-03-15 15:23:42,405 INFO L402 AbstractCegarLoop]: === Iteration 149 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:42,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:42,405 INFO L85 PathProgramCache]: Analyzing trace with hash -2063040359, now seen corresponding path program 147 times [2022-03-15 15:23:42,405 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:42,405 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289323435] [2022-03-15 15:23:42,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:42,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:42,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:42,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:42,476 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:42,476 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289323435] [2022-03-15 15:23:42,476 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289323435] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:42,476 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:42,477 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:42,477 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935875099] [2022-03-15 15:23:42,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:42,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:42,477 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:42,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:42,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:42,477 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) [2022-03-15 15:23:42,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:42,737 INFO L93 Difference]: Finished difference Result 1717 states and 5001 transitions. [2022-03-15 15:23:42,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:42,738 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:42,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:42,740 INFO L225 Difference]: With dead ends: 1717 [2022-03-15 15:23:42,740 INFO L226 Difference]: Without dead ends: 1584 [2022-03-15 15:23:42,740 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 [2022-03-15 15:23:42,740 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 [2022-03-15 15:23:42,741 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] [2022-03-15 15:23:42,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1584 states. [2022-03-15 15:23:42,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1584 to 1461. [2022-03-15 15:23:42,753 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) [2022-03-15 15:23:42,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1461 states to 1461 states and 4317 transitions. [2022-03-15 15:23:42,755 INFO L78 Accepts]: Start accepts. Automaton has 1461 states and 4317 transitions. Word has length 26 [2022-03-15 15:23:42,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:42,755 INFO L470 AbstractCegarLoop]: Abstraction has 1461 states and 4317 transitions. [2022-03-15 15:23:42,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:42,756 INFO L276 IsEmpty]: Start isEmpty. Operand 1461 states and 4317 transitions. [2022-03-15 15:23:42,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:42,757 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:42,757 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:42,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2022-03-15 15:23:42,757 INFO L402 AbstractCegarLoop]: === Iteration 150 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:42,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:42,757 INFO L85 PathProgramCache]: Analyzing trace with hash 2079486193, now seen corresponding path program 148 times [2022-03-15 15:23:42,758 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:42,758 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386539810] [2022-03-15 15:23:42,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:42,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:42,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:42,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:42,828 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:42,828 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386539810] [2022-03-15 15:23:42,828 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386539810] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:42,828 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:42,828 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:42,828 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848125202] [2022-03-15 15:23:42,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:42,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:42,829 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:42,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:42,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:42,829 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) [2022-03-15 15:23:43,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:43,094 INFO L93 Difference]: Finished difference Result 1724 states and 4996 transitions. [2022-03-15 15:23:43,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:43,095 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 [2022-03-15 15:23:43,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:43,097 INFO L225 Difference]: With dead ends: 1724 [2022-03-15 15:23:43,097 INFO L226 Difference]: Without dead ends: 1544 [2022-03-15 15:23:43,097 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 [2022-03-15 15:23:43,097 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 15:23:43,097 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 289 Invalid, 760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 748 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 15:23:43,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1544 states. [2022-03-15 15:23:43,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1544 to 1422. [2022-03-15 15:23:43,110 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) [2022-03-15 15:23:43,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1422 states to 1422 states and 4176 transitions. [2022-03-15 15:23:43,112 INFO L78 Accepts]: Start accepts. Automaton has 1422 states and 4176 transitions. Word has length 26 [2022-03-15 15:23:43,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:43,112 INFO L470 AbstractCegarLoop]: Abstraction has 1422 states and 4176 transitions. [2022-03-15 15:23:43,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:43,112 INFO L276 IsEmpty]: Start isEmpty. Operand 1422 states and 4176 transitions. [2022-03-15 15:23:43,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:43,113 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:43,113 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:43,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2022-03-15 15:23:43,113 INFO L402 AbstractCegarLoop]: === Iteration 151 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:43,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:43,114 INFO L85 PathProgramCache]: Analyzing trace with hash -700501831, now seen corresponding path program 149 times [2022-03-15 15:23:43,114 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:43,114 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159284438] [2022-03-15 15:23:43,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:43,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:43,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:43,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:43,185 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:43,185 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159284438] [2022-03-15 15:23:43,185 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159284438] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:43,185 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:43,185 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:43,185 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336505564] [2022-03-15 15:23:43,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:43,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:43,185 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:43,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:43,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:43,186 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) [2022-03-15 15:23:43,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:43,427 INFO L93 Difference]: Finished difference Result 1593 states and 4622 transitions. [2022-03-15 15:23:43,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:43,427 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:43,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:43,429 INFO L225 Difference]: With dead ends: 1593 [2022-03-15 15:23:43,430 INFO L226 Difference]: Without dead ends: 1514 [2022-03-15 15:23:43,430 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:43,430 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 [2022-03-15 15:23:43,430 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] [2022-03-15 15:23:43,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1514 states. [2022-03-15 15:23:43,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1514 to 1421. [2022-03-15 15:23:43,443 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) [2022-03-15 15:23:43,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1421 states to 1421 states and 4172 transitions. [2022-03-15 15:23:43,445 INFO L78 Accepts]: Start accepts. Automaton has 1421 states and 4172 transitions. Word has length 26 [2022-03-15 15:23:43,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:43,445 INFO L470 AbstractCegarLoop]: Abstraction has 1421 states and 4172 transitions. [2022-03-15 15:23:43,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:43,445 INFO L276 IsEmpty]: Start isEmpty. Operand 1421 states and 4172 transitions. [2022-03-15 15:23:43,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:43,446 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:43,446 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] [2022-03-15 15:23:43,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2022-03-15 15:23:43,447 INFO L402 AbstractCegarLoop]: === Iteration 152 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:43,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:43,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1658164539, now seen corresponding path program 150 times [2022-03-15 15:23:43,447 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:43,447 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372813855] [2022-03-15 15:23:43,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:43,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:43,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:43,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:43,529 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:43,529 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372813855] [2022-03-15 15:23:43,529 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372813855] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:43,529 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:43,530 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:43,530 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577747015] [2022-03-15 15:23:43,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:43,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:43,530 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:43,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:43,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:43,530 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) [2022-03-15 15:23:43,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:43,789 INFO L93 Difference]: Finished difference Result 1587 states and 4608 transitions. [2022-03-15 15:23:43,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:43,790 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:43,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:43,792 INFO L225 Difference]: With dead ends: 1587 [2022-03-15 15:23:43,792 INFO L226 Difference]: Without dead ends: 1483 [2022-03-15 15:23:43,792 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:43,792 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 [2022-03-15 15:23:43,792 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] [2022-03-15 15:23:43,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1483 states. [2022-03-15 15:23:43,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1483 to 1422. [2022-03-15 15:23:43,804 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) [2022-03-15 15:23:43,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1422 states to 1422 states and 4173 transitions. [2022-03-15 15:23:43,807 INFO L78 Accepts]: Start accepts. Automaton has 1422 states and 4173 transitions. Word has length 26 [2022-03-15 15:23:43,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:43,807 INFO L470 AbstractCegarLoop]: Abstraction has 1422 states and 4173 transitions. [2022-03-15 15:23:43,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:43,807 INFO L276 IsEmpty]: Start isEmpty. Operand 1422 states and 4173 transitions. [2022-03-15 15:23:43,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:43,808 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:43,808 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] [2022-03-15 15:23:43,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2022-03-15 15:23:43,808 INFO L402 AbstractCegarLoop]: === Iteration 153 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:43,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:43,809 INFO L85 PathProgramCache]: Analyzing trace with hash 2025536923, now seen corresponding path program 151 times [2022-03-15 15:23:43,809 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:43,809 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593691171] [2022-03-15 15:23:43,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:43,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:43,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:43,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:43,884 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:43,884 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593691171] [2022-03-15 15:23:43,884 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593691171] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:43,884 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:43,884 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:43,884 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083840253] [2022-03-15 15:23:43,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:43,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:43,884 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:43,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:43,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:43,885 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) [2022-03-15 15:23:44,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:44,129 INFO L93 Difference]: Finished difference Result 1574 states and 4561 transitions. [2022-03-15 15:23:44,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:44,129 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:44,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:44,131 INFO L225 Difference]: With dead ends: 1574 [2022-03-15 15:23:44,131 INFO L226 Difference]: Without dead ends: 1495 [2022-03-15 15:23:44,131 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:44,131 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 [2022-03-15 15:23:44,131 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] [2022-03-15 15:23:44,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1495 states. [2022-03-15 15:23:44,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1495 to 1423. [2022-03-15 15:23:44,143 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) [2022-03-15 15:23:44,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1423 states to 1423 states and 4177 transitions. [2022-03-15 15:23:44,145 INFO L78 Accepts]: Start accepts. Automaton has 1423 states and 4177 transitions. Word has length 26 [2022-03-15 15:23:44,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:44,146 INFO L470 AbstractCegarLoop]: Abstraction has 1423 states and 4177 transitions. [2022-03-15 15:23:44,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:44,146 INFO L276 IsEmpty]: Start isEmpty. Operand 1423 states and 4177 transitions. [2022-03-15 15:23:44,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:44,147 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:44,147 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:44,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2022-03-15 15:23:44,147 INFO L402 AbstractCegarLoop]: === Iteration 154 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:44,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:44,148 INFO L85 PathProgramCache]: Analyzing trace with hash -289747167, now seen corresponding path program 152 times [2022-03-15 15:23:44,148 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:44,148 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600704326] [2022-03-15 15:23:44,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:44,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:44,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:44,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:44,218 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:44,218 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600704326] [2022-03-15 15:23:44,218 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600704326] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:44,218 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:44,218 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:44,218 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696703152] [2022-03-15 15:23:44,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:44,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:44,219 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:44,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:44,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:44,219 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) [2022-03-15 15:23:44,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:44,462 INFO L93 Difference]: Finished difference Result 1563 states and 4535 transitions. [2022-03-15 15:23:44,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:44,462 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:44,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:44,464 INFO L225 Difference]: With dead ends: 1563 [2022-03-15 15:23:44,464 INFO L226 Difference]: Without dead ends: 1480 [2022-03-15 15:23:44,464 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:44,464 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 [2022-03-15 15:23:44,464 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] [2022-03-15 15:23:44,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1480 states. [2022-03-15 15:23:44,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1480 to 1424. [2022-03-15 15:23:44,476 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) [2022-03-15 15:23:44,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1424 states to 1424 states and 4179 transitions. [2022-03-15 15:23:44,478 INFO L78 Accepts]: Start accepts. Automaton has 1424 states and 4179 transitions. Word has length 26 [2022-03-15 15:23:44,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:44,478 INFO L470 AbstractCegarLoop]: Abstraction has 1424 states and 4179 transitions. [2022-03-15 15:23:44,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:44,479 INFO L276 IsEmpty]: Start isEmpty. Operand 1424 states and 4179 transitions. [2022-03-15 15:23:44,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:44,480 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:44,480 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:44,480 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2022-03-15 15:23:44,480 INFO L402 AbstractCegarLoop]: === Iteration 155 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:44,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:44,481 INFO L85 PathProgramCache]: Analyzing trace with hash 355673635, now seen corresponding path program 153 times [2022-03-15 15:23:44,481 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:44,481 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732134478] [2022-03-15 15:23:44,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:44,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:44,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:44,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:44,558 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:44,559 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732134478] [2022-03-15 15:23:44,559 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732134478] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:44,559 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:44,559 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:44,559 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934096171] [2022-03-15 15:23:44,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:44,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:44,559 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:44,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:44,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:44,559 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) [2022-03-15 15:23:44,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:44,815 INFO L93 Difference]: Finished difference Result 1627 states and 4733 transitions. [2022-03-15 15:23:44,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:44,815 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:44,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:44,817 INFO L225 Difference]: With dead ends: 1627 [2022-03-15 15:23:44,817 INFO L226 Difference]: Without dead ends: 1530 [2022-03-15 15:23:44,818 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:44,818 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 [2022-03-15 15:23:44,818 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] [2022-03-15 15:23:44,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1530 states. [2022-03-15 15:23:44,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1530 to 1431. [2022-03-15 15:23:44,831 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) [2022-03-15 15:23:44,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1431 states to 1431 states and 4203 transitions. [2022-03-15 15:23:44,833 INFO L78 Accepts]: Start accepts. Automaton has 1431 states and 4203 transitions. Word has length 26 [2022-03-15 15:23:44,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:44,833 INFO L470 AbstractCegarLoop]: Abstraction has 1431 states and 4203 transitions. [2022-03-15 15:23:44,833 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:44,833 INFO L276 IsEmpty]: Start isEmpty. Operand 1431 states and 4203 transitions. [2022-03-15 15:23:44,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:44,835 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:44,835 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:44,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2022-03-15 15:23:44,835 INFO L402 AbstractCegarLoop]: === Iteration 156 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:44,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:44,835 INFO L85 PathProgramCache]: Analyzing trace with hash 443610369, now seen corresponding path program 154 times [2022-03-15 15:23:44,835 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:44,836 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960552919] [2022-03-15 15:23:44,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:44,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:44,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:44,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:44,908 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:44,908 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960552919] [2022-03-15 15:23:44,908 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960552919] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:44,908 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:44,908 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:44,908 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057510664] [2022-03-15 15:23:44,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:44,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:44,908 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:44,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:44,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:44,909 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) [2022-03-15 15:23:45,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:45,155 INFO L93 Difference]: Finished difference Result 1607 states and 4663 transitions. [2022-03-15 15:23:45,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:45,155 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:45,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:45,157 INFO L225 Difference]: With dead ends: 1607 [2022-03-15 15:23:45,157 INFO L226 Difference]: Without dead ends: 1519 [2022-03-15 15:23:45,157 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:45,157 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 [2022-03-15 15:23:45,157 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] [2022-03-15 15:23:45,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1519 states. [2022-03-15 15:23:45,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1519 to 1430. [2022-03-15 15:23:45,170 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) [2022-03-15 15:23:45,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1430 states to 1430 states and 4203 transitions. [2022-03-15 15:23:45,172 INFO L78 Accepts]: Start accepts. Automaton has 1430 states and 4203 transitions. Word has length 26 [2022-03-15 15:23:45,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:45,172 INFO L470 AbstractCegarLoop]: Abstraction has 1430 states and 4203 transitions. [2022-03-15 15:23:45,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:45,172 INFO L276 IsEmpty]: Start isEmpty. Operand 1430 states and 4203 transitions. [2022-03-15 15:23:45,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:45,174 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:45,174 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] [2022-03-15 15:23:45,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2022-03-15 15:23:45,174 INFO L402 AbstractCegarLoop]: === Iteration 157 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:45,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:45,174 INFO L85 PathProgramCache]: Analyzing trace with hash -757012227, now seen corresponding path program 155 times [2022-03-15 15:23:45,174 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:45,174 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678351372] [2022-03-15 15:23:45,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:45,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:45,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:45,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:45,250 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:45,250 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678351372] [2022-03-15 15:23:45,250 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678351372] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:45,250 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:45,250 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:45,250 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392008285] [2022-03-15 15:23:45,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:45,250 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:45,250 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:45,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:45,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:45,251 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) [2022-03-15 15:23:45,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:45,497 INFO L93 Difference]: Finished difference Result 1567 states and 4558 transitions. [2022-03-15 15:23:45,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:45,497 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:45,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:45,499 INFO L225 Difference]: With dead ends: 1567 [2022-03-15 15:23:45,499 INFO L226 Difference]: Without dead ends: 1488 [2022-03-15 15:23:45,500 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:45,500 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 [2022-03-15 15:23:45,500 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] [2022-03-15 15:23:45,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1488 states. [2022-03-15 15:23:45,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1488 to 1429. [2022-03-15 15:23:45,512 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) [2022-03-15 15:23:45,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1429 states to 1429 states and 4199 transitions. [2022-03-15 15:23:45,514 INFO L78 Accepts]: Start accepts. Automaton has 1429 states and 4199 transitions. Word has length 26 [2022-03-15 15:23:45,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:45,514 INFO L470 AbstractCegarLoop]: Abstraction has 1429 states and 4199 transitions. [2022-03-15 15:23:45,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:45,514 INFO L276 IsEmpty]: Start isEmpty. Operand 1429 states and 4199 transitions. [2022-03-15 15:23:45,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:45,515 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:45,515 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:45,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2022-03-15 15:23:45,516 INFO L402 AbstractCegarLoop]: === Iteration 158 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:45,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:45,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1222670979, now seen corresponding path program 156 times [2022-03-15 15:23:45,516 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:45,516 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522056171] [2022-03-15 15:23:45,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:45,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:45,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:45,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:45,588 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:45,589 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522056171] [2022-03-15 15:23:45,589 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522056171] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:45,589 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:45,589 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:45,589 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209819876] [2022-03-15 15:23:45,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:45,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:45,589 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:45,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:45,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:45,589 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) [2022-03-15 15:23:45,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:45,836 INFO L93 Difference]: Finished difference Result 1572 states and 4563 transitions. [2022-03-15 15:23:45,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:45,836 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:45,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:45,838 INFO L225 Difference]: With dead ends: 1572 [2022-03-15 15:23:45,839 INFO L226 Difference]: Without dead ends: 1489 [2022-03-15 15:23:45,839 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 [2022-03-15 15:23:45,839 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 [2022-03-15 15:23:45,839 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] [2022-03-15 15:23:45,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1489 states. [2022-03-15 15:23:45,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1489 to 1430. [2022-03-15 15:23:45,851 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) [2022-03-15 15:23:45,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1430 states to 1430 states and 4200 transitions. [2022-03-15 15:23:45,854 INFO L78 Accepts]: Start accepts. Automaton has 1430 states and 4200 transitions. Word has length 26 [2022-03-15 15:23:45,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:45,854 INFO L470 AbstractCegarLoop]: Abstraction has 1430 states and 4200 transitions. [2022-03-15 15:23:45,854 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:45,854 INFO L276 IsEmpty]: Start isEmpty. Operand 1430 states and 4200 transitions. [2022-03-15 15:23:45,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:45,855 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:45,856 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:45,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2022-03-15 15:23:45,856 INFO L402 AbstractCegarLoop]: === Iteration 159 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:45,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:45,856 INFO L85 PathProgramCache]: Analyzing trace with hash 2145810523, now seen corresponding path program 157 times [2022-03-15 15:23:45,856 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:45,856 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64645555] [2022-03-15 15:23:45,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:45,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:45,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:45,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:45,926 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:45,926 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64645555] [2022-03-15 15:23:45,927 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64645555] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:45,927 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:45,927 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:45,927 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138095788] [2022-03-15 15:23:45,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:45,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:45,927 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:45,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:45,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:45,927 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) [2022-03-15 15:23:46,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:46,167 INFO L93 Difference]: Finished difference Result 1645 states and 4769 transitions. [2022-03-15 15:23:46,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:46,168 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:46,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:46,171 INFO L225 Difference]: With dead ends: 1645 [2022-03-15 15:23:46,171 INFO L226 Difference]: Without dead ends: 1554 [2022-03-15 15:23:46,171 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:46,171 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 [2022-03-15 15:23:46,171 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] [2022-03-15 15:23:46,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1554 states. [2022-03-15 15:23:46,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1554 to 1426. [2022-03-15 15:23:46,183 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) [2022-03-15 15:23:46,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 4186 transitions. [2022-03-15 15:23:46,185 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 4186 transitions. Word has length 26 [2022-03-15 15:23:46,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:46,186 INFO L470 AbstractCegarLoop]: Abstraction has 1426 states and 4186 transitions. [2022-03-15 15:23:46,186 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) [2022-03-15 15:23:46,186 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 4186 transitions. [2022-03-15 15:23:46,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:46,187 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:46,187 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:46,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2022-03-15 15:23:46,187 INFO L402 AbstractCegarLoop]: === Iteration 160 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:46,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:46,188 INFO L85 PathProgramCache]: Analyzing trace with hash -26396157, now seen corresponding path program 158 times [2022-03-15 15:23:46,188 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:46,188 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115980350] [2022-03-15 15:23:46,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:46,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:46,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:46,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:46,263 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:46,263 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115980350] [2022-03-15 15:23:46,263 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115980350] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:46,263 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:46,263 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:46,263 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122361114] [2022-03-15 15:23:46,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:46,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:46,263 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:46,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:46,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:46,264 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) [2022-03-15 15:23:46,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:46,512 INFO L93 Difference]: Finished difference Result 1595 states and 4605 transitions. [2022-03-15 15:23:46,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:46,513 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 [2022-03-15 15:23:46,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:46,515 INFO L225 Difference]: With dead ends: 1595 [2022-03-15 15:23:46,515 INFO L226 Difference]: Without dead ends: 1496 [2022-03-15 15:23:46,515 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 [2022-03-15 15:23:46,515 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 [2022-03-15 15:23:46,515 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] [2022-03-15 15:23:46,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1496 states. [2022-03-15 15:23:46,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1496 to 1431. [2022-03-15 15:23:46,527 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) [2022-03-15 15:23:46,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1431 states to 1431 states and 4196 transitions. [2022-03-15 15:23:46,529 INFO L78 Accepts]: Start accepts. Automaton has 1431 states and 4196 transitions. Word has length 26 [2022-03-15 15:23:46,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:46,529 INFO L470 AbstractCegarLoop]: Abstraction has 1431 states and 4196 transitions. [2022-03-15 15:23:46,529 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) [2022-03-15 15:23:46,530 INFO L276 IsEmpty]: Start isEmpty. Operand 1431 states and 4196 transitions. [2022-03-15 15:23:46,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:46,531 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:46,531 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] [2022-03-15 15:23:46,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2022-03-15 15:23:46,531 INFO L402 AbstractCegarLoop]: === Iteration 161 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:46,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:46,531 INFO L85 PathProgramCache]: Analyzing trace with hash -707649403, now seen corresponding path program 159 times [2022-03-15 15:23:46,531 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:46,532 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084895951] [2022-03-15 15:23:46,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:46,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:46,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:46,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:46,609 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:46,609 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084895951] [2022-03-15 15:23:46,609 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084895951] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:46,609 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:46,609 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:46,609 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135632576] [2022-03-15 15:23:46,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:46,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:46,609 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:46,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:46,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:46,610 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) [2022-03-15 15:23:46,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:46,875 INFO L93 Difference]: Finished difference Result 1626 states and 4726 transitions. [2022-03-15 15:23:46,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:46,875 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:46,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:46,877 INFO L225 Difference]: With dead ends: 1626 [2022-03-15 15:23:46,877 INFO L226 Difference]: Without dead ends: 1529 [2022-03-15 15:23:46,877 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 [2022-03-15 15:23:46,877 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 15:23:46,877 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 235 Invalid, 728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 716 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 15:23:46,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1529 states. [2022-03-15 15:23:46,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1529 to 1429. [2022-03-15 15:23:46,889 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) [2022-03-15 15:23:46,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1429 states to 1429 states and 4188 transitions. [2022-03-15 15:23:46,891 INFO L78 Accepts]: Start accepts. Automaton has 1429 states and 4188 transitions. Word has length 26 [2022-03-15 15:23:46,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:46,891 INFO L470 AbstractCegarLoop]: Abstraction has 1429 states and 4188 transitions. [2022-03-15 15:23:46,891 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) [2022-03-15 15:23:46,891 INFO L276 IsEmpty]: Start isEmpty. Operand 1429 states and 4188 transitions. [2022-03-15 15:23:46,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:46,893 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:46,893 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:46,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2022-03-15 15:23:46,893 INFO L402 AbstractCegarLoop]: === Iteration 162 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:46,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:46,893 INFO L85 PathProgramCache]: Analyzing trace with hash -619712669, now seen corresponding path program 160 times [2022-03-15 15:23:46,893 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:46,893 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533619124] [2022-03-15 15:23:46,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:46,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:46,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:46,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:46,964 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:46,964 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533619124] [2022-03-15 15:23:46,964 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533619124] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:46,964 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:46,964 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:46,964 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353546805] [2022-03-15 15:23:46,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:46,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:46,964 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:46,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:46,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:46,964 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) [2022-03-15 15:23:47,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:47,210 INFO L93 Difference]: Finished difference Result 1603 states and 4654 transitions. [2022-03-15 15:23:47,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:47,210 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 [2022-03-15 15:23:47,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:47,213 INFO L225 Difference]: With dead ends: 1603 [2022-03-15 15:23:47,213 INFO L226 Difference]: Without dead ends: 1517 [2022-03-15 15:23:47,213 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 [2022-03-15 15:23:47,213 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 [2022-03-15 15:23:47,213 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] [2022-03-15 15:23:47,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1517 states. [2022-03-15 15:23:47,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1517 to 1437. [2022-03-15 15:23:47,226 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) [2022-03-15 15:23:47,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1437 states to 1437 states and 4211 transitions. [2022-03-15 15:23:47,228 INFO L78 Accepts]: Start accepts. Automaton has 1437 states and 4211 transitions. Word has length 26 [2022-03-15 15:23:47,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:47,228 INFO L470 AbstractCegarLoop]: Abstraction has 1437 states and 4211 transitions. [2022-03-15 15:23:47,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:47,228 INFO L276 IsEmpty]: Start isEmpty. Operand 1437 states and 4211 transitions. [2022-03-15 15:23:47,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:47,230 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:47,230 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:47,230 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2022-03-15 15:23:47,230 INFO L402 AbstractCegarLoop]: === Iteration 163 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:47,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:47,230 INFO L85 PathProgramCache]: Analyzing trace with hash -709472319, now seen corresponding path program 161 times [2022-03-15 15:23:47,231 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:47,231 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856796259] [2022-03-15 15:23:47,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:47,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:47,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:47,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:47,300 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:47,301 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856796259] [2022-03-15 15:23:47,301 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856796259] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:47,301 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:47,301 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:47,301 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887209313] [2022-03-15 15:23:47,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:47,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:47,301 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:47,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:47,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:47,301 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) [2022-03-15 15:23:47,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:47,544 INFO L93 Difference]: Finished difference Result 1577 states and 4563 transitions. [2022-03-15 15:23:47,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:47,545 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:47,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:47,547 INFO L225 Difference]: With dead ends: 1577 [2022-03-15 15:23:47,547 INFO L226 Difference]: Without dead ends: 1482 [2022-03-15 15:23:47,547 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:47,547 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 [2022-03-15 15:23:47,547 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] [2022-03-15 15:23:47,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1482 states. [2022-03-15 15:23:47,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1482 to 1420. [2022-03-15 15:23:47,559 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) [2022-03-15 15:23:47,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1420 states to 1420 states and 4166 transitions. [2022-03-15 15:23:47,561 INFO L78 Accepts]: Start accepts. Automaton has 1420 states and 4166 transitions. Word has length 26 [2022-03-15 15:23:47,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:47,561 INFO L470 AbstractCegarLoop]: Abstraction has 1420 states and 4166 transitions. [2022-03-15 15:23:47,561 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) [2022-03-15 15:23:47,561 INFO L276 IsEmpty]: Start isEmpty. Operand 1420 states and 4166 transitions. [2022-03-15 15:23:47,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:47,563 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:47,563 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:47,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2022-03-15 15:23:47,563 INFO L402 AbstractCegarLoop]: === Iteration 164 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:47,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:47,563 INFO L85 PathProgramCache]: Analyzing trace with hash -107433999, now seen corresponding path program 162 times [2022-03-15 15:23:47,563 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:47,563 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547608451] [2022-03-15 15:23:47,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:47,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:47,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:47,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:47,627 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:47,628 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547608451] [2022-03-15 15:23:47,628 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547608451] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:47,628 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:47,628 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:23:47,628 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966175760] [2022-03-15 15:23:47,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:47,628 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:23:47,628 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:47,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:23:47,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:23:47,628 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) [2022-03-15 15:23:47,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:47,818 INFO L93 Difference]: Finished difference Result 1724 states and 5023 transitions. [2022-03-15 15:23:47,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:23:47,818 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 [2022-03-15 15:23:47,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:47,821 INFO L225 Difference]: With dead ends: 1724 [2022-03-15 15:23:47,821 INFO L226 Difference]: Without dead ends: 1639 [2022-03-15 15:23:47,821 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 [2022-03-15 15:23:47,821 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 [2022-03-15 15:23:47,821 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] [2022-03-15 15:23:47,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1639 states. [2022-03-15 15:23:47,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1639 to 1456. [2022-03-15 15:23:47,833 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) [2022-03-15 15:23:47,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1456 states to 1456 states and 4275 transitions. [2022-03-15 15:23:47,836 INFO L78 Accepts]: Start accepts. Automaton has 1456 states and 4275 transitions. Word has length 26 [2022-03-15 15:23:47,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:47,836 INFO L470 AbstractCegarLoop]: Abstraction has 1456 states and 4275 transitions. [2022-03-15 15:23:47,836 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) [2022-03-15 15:23:47,836 INFO L276 IsEmpty]: Start isEmpty. Operand 1456 states and 4275 transitions. [2022-03-15 15:23:47,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:47,837 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:47,837 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:47,837 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2022-03-15 15:23:47,838 INFO L402 AbstractCegarLoop]: === Iteration 165 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:47,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:47,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1872249207, now seen corresponding path program 163 times [2022-03-15 15:23:47,838 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:47,838 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929554302] [2022-03-15 15:23:47,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:47,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:47,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:47,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:47,908 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:47,908 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929554302] [2022-03-15 15:23:47,908 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929554302] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:47,908 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:47,908 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:47,908 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671986196] [2022-03-15 15:23:47,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:47,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:47,908 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:47,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:47,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:47,909 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) [2022-03-15 15:23:48,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:48,149 INFO L93 Difference]: Finished difference Result 1767 states and 5149 transitions. [2022-03-15 15:23:48,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:48,150 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 [2022-03-15 15:23:48,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:48,152 INFO L225 Difference]: With dead ends: 1767 [2022-03-15 15:23:48,152 INFO L226 Difference]: Without dead ends: 1619 [2022-03-15 15:23:48,152 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 [2022-03-15 15:23:48,153 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 [2022-03-15 15:23:48,153 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] [2022-03-15 15:23:48,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1619 states. [2022-03-15 15:23:48,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1619 to 1417. [2022-03-15 15:23:48,165 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) [2022-03-15 15:23:48,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1417 states to 1417 states and 4162 transitions. [2022-03-15 15:23:48,167 INFO L78 Accepts]: Start accepts. Automaton has 1417 states and 4162 transitions. Word has length 26 [2022-03-15 15:23:48,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:48,167 INFO L470 AbstractCegarLoop]: Abstraction has 1417 states and 4162 transitions. [2022-03-15 15:23:48,167 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) [2022-03-15 15:23:48,167 INFO L276 IsEmpty]: Start isEmpty. Operand 1417 states and 4162 transitions. [2022-03-15 15:23:48,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:48,169 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:48,169 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] [2022-03-15 15:23:48,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2022-03-15 15:23:48,170 INFO L402 AbstractCegarLoop]: === Iteration 166 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:48,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:48,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1817790317, now seen corresponding path program 164 times [2022-03-15 15:23:48,170 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:48,170 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267375615] [2022-03-15 15:23:48,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:48,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:48,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:48,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:48,253 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:48,253 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267375615] [2022-03-15 15:23:48,253 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267375615] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:48,253 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:48,253 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:48,253 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123532351] [2022-03-15 15:23:48,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:48,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:48,253 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:48,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:48,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:48,254 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) [2022-03-15 15:23:48,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:48,528 INFO L93 Difference]: Finished difference Result 1698 states and 4940 transitions. [2022-03-15 15:23:48,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:48,528 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:48,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:48,531 INFO L225 Difference]: With dead ends: 1698 [2022-03-15 15:23:48,531 INFO L226 Difference]: Without dead ends: 1613 [2022-03-15 15:23:48,531 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 [2022-03-15 15:23:48,531 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 15:23:48,531 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 257 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 634 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 15:23:48,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1613 states. [2022-03-15 15:23:48,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1613 to 1419. [2022-03-15 15:23:48,544 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) [2022-03-15 15:23:48,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1419 states to 1419 states and 4167 transitions. [2022-03-15 15:23:48,546 INFO L78 Accepts]: Start accepts. Automaton has 1419 states and 4167 transitions. Word has length 26 [2022-03-15 15:23:48,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:48,546 INFO L470 AbstractCegarLoop]: Abstraction has 1419 states and 4167 transitions. [2022-03-15 15:23:48,546 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:48,546 INFO L276 IsEmpty]: Start isEmpty. Operand 1419 states and 4167 transitions. [2022-03-15 15:23:48,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:48,547 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:48,548 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:48,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2022-03-15 15:23:48,548 INFO L402 AbstractCegarLoop]: === Iteration 167 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:48,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:48,548 INFO L85 PathProgramCache]: Analyzing trace with hash 161892889, now seen corresponding path program 165 times [2022-03-15 15:23:48,548 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:48,548 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825673159] [2022-03-15 15:23:48,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:48,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:48,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:48,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:48,628 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:48,628 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825673159] [2022-03-15 15:23:48,628 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825673159] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:48,628 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:48,628 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:48,628 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154918682] [2022-03-15 15:23:48,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:48,628 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:48,628 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:48,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:48,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:48,628 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) [2022-03-15 15:23:48,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:48,876 INFO L93 Difference]: Finished difference Result 1732 states and 5057 transitions. [2022-03-15 15:23:48,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:48,876 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 [2022-03-15 15:23:48,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:48,879 INFO L225 Difference]: With dead ends: 1732 [2022-03-15 15:23:48,879 INFO L226 Difference]: Without dead ends: 1649 [2022-03-15 15:23:48,879 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 [2022-03-15 15:23:48,879 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 [2022-03-15 15:23:48,879 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] [2022-03-15 15:23:48,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1649 states. [2022-03-15 15:23:48,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1649 to 1438. [2022-03-15 15:23:48,892 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) [2022-03-15 15:23:48,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1438 states to 1438 states and 4228 transitions. [2022-03-15 15:23:48,894 INFO L78 Accepts]: Start accepts. Automaton has 1438 states and 4228 transitions. Word has length 26 [2022-03-15 15:23:48,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:48,894 INFO L470 AbstractCegarLoop]: Abstraction has 1438 states and 4228 transitions. [2022-03-15 15:23:48,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:48,894 INFO L276 IsEmpty]: Start isEmpty. Operand 1438 states and 4228 transitions. [2022-03-15 15:23:48,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:48,896 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:48,896 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] [2022-03-15 15:23:48,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2022-03-15 15:23:48,896 INFO L402 AbstractCegarLoop]: === Iteration 168 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:48,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:48,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1087174247, now seen corresponding path program 166 times [2022-03-15 15:23:48,896 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:48,896 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207834349] [2022-03-15 15:23:48,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:48,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:48,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:48,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:48,980 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:48,980 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207834349] [2022-03-15 15:23:48,980 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207834349] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:48,980 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:48,980 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:48,981 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899765861] [2022-03-15 15:23:48,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:48,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:48,981 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:48,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:48,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:48,981 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) [2022-03-15 15:23:49,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:49,227 INFO L93 Difference]: Finished difference Result 1748 states and 5073 transitions. [2022-03-15 15:23:49,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:49,227 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:49,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:49,229 INFO L225 Difference]: With dead ends: 1748 [2022-03-15 15:23:49,229 INFO L226 Difference]: Without dead ends: 1639 [2022-03-15 15:23:49,230 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 [2022-03-15 15:23:49,230 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 [2022-03-15 15:23:49,230 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] [2022-03-15 15:23:49,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1639 states. [2022-03-15 15:23:49,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1639 to 1406. [2022-03-15 15:23:49,242 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) [2022-03-15 15:23:49,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1406 states to 1406 states and 4130 transitions. [2022-03-15 15:23:49,244 INFO L78 Accepts]: Start accepts. Automaton has 1406 states and 4130 transitions. Word has length 26 [2022-03-15 15:23:49,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:49,245 INFO L470 AbstractCegarLoop]: Abstraction has 1406 states and 4130 transitions. [2022-03-15 15:23:49,245 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) [2022-03-15 15:23:49,245 INFO L276 IsEmpty]: Start isEmpty. Operand 1406 states and 4130 transitions. [2022-03-15 15:23:49,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:49,246 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:49,246 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] [2022-03-15 15:23:49,246 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2022-03-15 15:23:49,246 INFO L402 AbstractCegarLoop]: === Iteration 169 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:49,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:49,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1773870385, now seen corresponding path program 167 times [2022-03-15 15:23:49,247 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:49,247 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519451027] [2022-03-15 15:23:49,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:49,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:49,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:49,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:49,301 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:49,301 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519451027] [2022-03-15 15:23:49,301 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519451027] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:49,301 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:49,301 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 15:23:49,301 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006945637] [2022-03-15 15:23:49,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:49,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 15:23:49,301 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:49,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 15:23:49,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-03-15 15:23:49,302 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) [2022-03-15 15:23:49,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:49,452 INFO L93 Difference]: Finished difference Result 1712 states and 4985 transitions. [2022-03-15 15:23:49,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-15 15:23:49,452 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 [2022-03-15 15:23:49,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:49,454 INFO L225 Difference]: With dead ends: 1712 [2022-03-15 15:23:49,454 INFO L226 Difference]: Without dead ends: 1615 [2022-03-15 15:23:49,455 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 [2022-03-15 15:23:49,455 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 [2022-03-15 15:23:49,455 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] [2022-03-15 15:23:49,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1615 states. [2022-03-15 15:23:49,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1615 to 1488. [2022-03-15 15:23:49,475 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) [2022-03-15 15:23:49,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1488 states to 1488 states and 4366 transitions. [2022-03-15 15:23:49,477 INFO L78 Accepts]: Start accepts. Automaton has 1488 states and 4366 transitions. Word has length 26 [2022-03-15 15:23:49,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:49,477 INFO L470 AbstractCegarLoop]: Abstraction has 1488 states and 4366 transitions. [2022-03-15 15:23:49,477 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) [2022-03-15 15:23:49,477 INFO L276 IsEmpty]: Start isEmpty. Operand 1488 states and 4366 transitions. [2022-03-15 15:23:49,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:49,479 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:49,479 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:49,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2022-03-15 15:23:49,479 INFO L402 AbstractCegarLoop]: === Iteration 170 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:49,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:49,479 INFO L85 PathProgramCache]: Analyzing trace with hash -162430541, now seen corresponding path program 168 times [2022-03-15 15:23:49,480 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:49,480 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502626688] [2022-03-15 15:23:49,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:49,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:49,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:49,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:49,557 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:49,557 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502626688] [2022-03-15 15:23:49,557 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502626688] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:49,557 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:49,557 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:23:49,557 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374011404] [2022-03-15 15:23:49,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:49,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:23:49,558 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:49,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:23:49,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:23:49,558 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) [2022-03-15 15:23:49,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:49,777 INFO L93 Difference]: Finished difference Result 1769 states and 5133 transitions. [2022-03-15 15:23:49,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:23:49,777 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 [2022-03-15 15:23:49,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:49,779 INFO L225 Difference]: With dead ends: 1769 [2022-03-15 15:23:49,779 INFO L226 Difference]: Without dead ends: 1570 [2022-03-15 15:23:49,779 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 [2022-03-15 15:23:49,779 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 57 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 543 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:23:49,779 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] [2022-03-15 15:23:49,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1570 states. [2022-03-15 15:23:49,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1570 to 1462. [2022-03-15 15:23:49,792 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) [2022-03-15 15:23:49,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1462 states to 1462 states and 4276 transitions. [2022-03-15 15:23:49,794 INFO L78 Accepts]: Start accepts. Automaton has 1462 states and 4276 transitions. Word has length 26 [2022-03-15 15:23:49,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:49,794 INFO L470 AbstractCegarLoop]: Abstraction has 1462 states and 4276 transitions. [2022-03-15 15:23:49,794 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) [2022-03-15 15:23:49,794 INFO L276 IsEmpty]: Start isEmpty. Operand 1462 states and 4276 transitions. [2022-03-15 15:23:49,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:49,796 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:49,796 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:49,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2022-03-15 15:23:49,796 INFO L402 AbstractCegarLoop]: === Iteration 171 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:49,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:49,796 INFO L85 PathProgramCache]: Analyzing trace with hash 56129615, now seen corresponding path program 169 times [2022-03-15 15:23:49,796 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:49,796 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572709347] [2022-03-15 15:23:49,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:49,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:49,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:49,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:49,866 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:49,866 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572709347] [2022-03-15 15:23:49,866 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572709347] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:49,866 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:49,867 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:23:49,867 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896540272] [2022-03-15 15:23:49,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:49,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:23:49,867 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:49,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:23:49,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:23:49,867 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) [2022-03-15 15:23:50,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:50,057 INFO L93 Difference]: Finished difference Result 1668 states and 4808 transitions. [2022-03-15 15:23:50,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:23:50,057 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 [2022-03-15 15:23:50,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:50,060 INFO L225 Difference]: With dead ends: 1668 [2022-03-15 15:23:50,060 INFO L226 Difference]: Without dead ends: 1571 [2022-03-15 15:23:50,060 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 [2022-03-15 15:23:50,060 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 [2022-03-15 15:23:50,060 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] [2022-03-15 15:23:50,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1571 states. [2022-03-15 15:23:50,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1571 to 1452. [2022-03-15 15:23:50,073 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) [2022-03-15 15:23:50,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1452 states to 1452 states and 4251 transitions. [2022-03-15 15:23:50,075 INFO L78 Accepts]: Start accepts. Automaton has 1452 states and 4251 transitions. Word has length 26 [2022-03-15 15:23:50,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:50,075 INFO L470 AbstractCegarLoop]: Abstraction has 1452 states and 4251 transitions. [2022-03-15 15:23:50,075 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) [2022-03-15 15:23:50,075 INFO L276 IsEmpty]: Start isEmpty. Operand 1452 states and 4251 transitions. [2022-03-15 15:23:50,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:50,077 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:50,077 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:50,077 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2022-03-15 15:23:50,077 INFO L402 AbstractCegarLoop]: === Iteration 172 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:50,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:50,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1880171311, now seen corresponding path program 170 times [2022-03-15 15:23:50,077 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:50,077 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450722471] [2022-03-15 15:23:50,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:50,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:50,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:50,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:50,149 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:50,149 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450722471] [2022-03-15 15:23:50,149 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450722471] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:50,149 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:50,149 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:50,149 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878104586] [2022-03-15 15:23:50,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:50,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:50,149 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:50,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:50,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:50,150 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) [2022-03-15 15:23:50,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:50,395 INFO L93 Difference]: Finished difference Result 1677 states and 4834 transitions. [2022-03-15 15:23:50,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:50,395 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:50,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:50,398 INFO L225 Difference]: With dead ends: 1677 [2022-03-15 15:23:50,398 INFO L226 Difference]: Without dead ends: 1550 [2022-03-15 15:23:50,398 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:50,398 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 [2022-03-15 15:23:50,398 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] [2022-03-15 15:23:50,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1550 states. [2022-03-15 15:23:50,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1550 to 1470. [2022-03-15 15:23:50,410 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) [2022-03-15 15:23:50,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 4287 transitions. [2022-03-15 15:23:50,412 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 4287 transitions. Word has length 26 [2022-03-15 15:23:50,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:50,412 INFO L470 AbstractCegarLoop]: Abstraction has 1470 states and 4287 transitions. [2022-03-15 15:23:50,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:50,413 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 4287 transitions. [2022-03-15 15:23:50,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:50,414 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:50,414 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:50,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2022-03-15 15:23:50,414 INFO L402 AbstractCegarLoop]: === Iteration 173 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:50,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:50,414 INFO L85 PathProgramCache]: Analyzing trace with hash 466884279, now seen corresponding path program 171 times [2022-03-15 15:23:50,415 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:50,415 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316303123] [2022-03-15 15:23:50,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:50,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:50,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:50,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:50,489 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:50,489 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316303123] [2022-03-15 15:23:50,489 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316303123] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:50,489 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:50,489 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:23:50,489 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693587] [2022-03-15 15:23:50,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:50,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:23:50,489 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:50,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:23:50,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:23:50,490 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) [2022-03-15 15:23:50,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:50,673 INFO L93 Difference]: Finished difference Result 1737 states and 5007 transitions. [2022-03-15 15:23:50,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:23:50,673 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 [2022-03-15 15:23:50,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:50,676 INFO L225 Difference]: With dead ends: 1737 [2022-03-15 15:23:50,676 INFO L226 Difference]: Without dead ends: 1622 [2022-03-15 15:23:50,676 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 [2022-03-15 15:23:50,676 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 [2022-03-15 15:23:50,676 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] [2022-03-15 15:23:50,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1622 states. [2022-03-15 15:23:50,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1622 to 1476. [2022-03-15 15:23:50,688 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) [2022-03-15 15:23:50,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1476 states to 1476 states and 4296 transitions. [2022-03-15 15:23:50,691 INFO L78 Accepts]: Start accepts. Automaton has 1476 states and 4296 transitions. Word has length 26 [2022-03-15 15:23:50,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:50,691 INFO L470 AbstractCegarLoop]: Abstraction has 1476 states and 4296 transitions. [2022-03-15 15:23:50,691 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) [2022-03-15 15:23:50,691 INFO L276 IsEmpty]: Start isEmpty. Operand 1476 states and 4296 transitions. [2022-03-15 15:23:50,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:50,692 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:50,692 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:50,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2022-03-15 15:23:50,692 INFO L402 AbstractCegarLoop]: === Iteration 174 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:50,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:50,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1112305081, now seen corresponding path program 172 times [2022-03-15 15:23:50,697 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:50,697 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588003633] [2022-03-15 15:23:50,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:50,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:50,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:50,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:50,765 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:50,765 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588003633] [2022-03-15 15:23:50,765 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588003633] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:50,765 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:50,766 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:50,766 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805388457] [2022-03-15 15:23:50,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:50,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:50,766 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:50,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:50,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:50,766 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) [2022-03-15 15:23:51,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:51,013 INFO L93 Difference]: Finished difference Result 1779 states and 5100 transitions. [2022-03-15 15:23:51,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:51,013 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:51,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:51,015 INFO L225 Difference]: With dead ends: 1779 [2022-03-15 15:23:51,015 INFO L226 Difference]: Without dead ends: 1623 [2022-03-15 15:23:51,016 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 [2022-03-15 15:23:51,016 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 [2022-03-15 15:23:51,016 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] [2022-03-15 15:23:51,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1623 states. [2022-03-15 15:23:51,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1623 to 1498. [2022-03-15 15:23:51,029 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) [2022-03-15 15:23:51,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1498 states to 1498 states and 4362 transitions. [2022-03-15 15:23:51,031 INFO L78 Accepts]: Start accepts. Automaton has 1498 states and 4362 transitions. Word has length 26 [2022-03-15 15:23:51,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:51,031 INFO L470 AbstractCegarLoop]: Abstraction has 1498 states and 4362 transitions. [2022-03-15 15:23:51,031 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) [2022-03-15 15:23:51,031 INFO L276 IsEmpty]: Start isEmpty. Operand 1498 states and 4362 transitions. [2022-03-15 15:23:51,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:51,033 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:51,033 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] [2022-03-15 15:23:51,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2022-03-15 15:23:51,033 INFO L402 AbstractCegarLoop]: === Iteration 175 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:51,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:51,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1200241815, now seen corresponding path program 173 times [2022-03-15 15:23:51,033 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:51,033 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718319290] [2022-03-15 15:23:51,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:51,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:51,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:51,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:51,102 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:51,102 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718319290] [2022-03-15 15:23:51,102 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718319290] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:51,102 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:51,102 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:51,102 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331416414] [2022-03-15 15:23:51,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:51,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:51,102 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:51,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:51,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:51,103 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) [2022-03-15 15:23:51,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:51,328 INFO L93 Difference]: Finished difference Result 1823 states and 5246 transitions. [2022-03-15 15:23:51,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:51,329 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 [2022-03-15 15:23:51,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:51,331 INFO L225 Difference]: With dead ends: 1823 [2022-03-15 15:23:51,331 INFO L226 Difference]: Without dead ends: 1667 [2022-03-15 15:23:51,331 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 [2022-03-15 15:23:51,331 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 [2022-03-15 15:23:51,331 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] [2022-03-15 15:23:51,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1667 states. [2022-03-15 15:23:51,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1667 to 1522. [2022-03-15 15:23:51,344 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) [2022-03-15 15:23:51,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1522 states to 1522 states and 4433 transitions. [2022-03-15 15:23:51,347 INFO L78 Accepts]: Start accepts. Automaton has 1522 states and 4433 transitions. Word has length 26 [2022-03-15 15:23:51,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:51,347 INFO L470 AbstractCegarLoop]: Abstraction has 1522 states and 4433 transitions. [2022-03-15 15:23:51,347 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:51,347 INFO L276 IsEmpty]: Start isEmpty. Operand 1522 states and 4433 transitions. [2022-03-15 15:23:51,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:51,348 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:51,349 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:51,349 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2022-03-15 15:23:51,349 INFO L402 AbstractCegarLoop]: === Iteration 176 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:51,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:51,349 INFO L85 PathProgramCache]: Analyzing trace with hash -562994771, now seen corresponding path program 174 times [2022-03-15 15:23:51,349 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:51,349 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486934689] [2022-03-15 15:23:51,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:51,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:51,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:51,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:51,409 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:51,409 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486934689] [2022-03-15 15:23:51,409 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486934689] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:51,409 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:51,409 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:23:51,409 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685061610] [2022-03-15 15:23:51,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:51,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:23:51,409 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:51,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:23:51,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:23:51,409 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) [2022-03-15 15:23:51,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:51,608 INFO L93 Difference]: Finished difference Result 1900 states and 5461 transitions. [2022-03-15 15:23:51,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:23:51,608 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 [2022-03-15 15:23:51,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:51,611 INFO L225 Difference]: With dead ends: 1900 [2022-03-15 15:23:51,611 INFO L226 Difference]: Without dead ends: 1636 [2022-03-15 15:23:51,611 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 [2022-03-15 15:23:51,611 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 62 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:23:51,612 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] [2022-03-15 15:23:51,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1636 states. [2022-03-15 15:23:51,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1636 to 1508. [2022-03-15 15:23:51,625 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) [2022-03-15 15:23:51,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1508 states to 1508 states and 4358 transitions. [2022-03-15 15:23:51,627 INFO L78 Accepts]: Start accepts. Automaton has 1508 states and 4358 transitions. Word has length 26 [2022-03-15 15:23:51,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:51,627 INFO L470 AbstractCegarLoop]: Abstraction has 1508 states and 4358 transitions. [2022-03-15 15:23:51,627 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) [2022-03-15 15:23:51,627 INFO L276 IsEmpty]: Start isEmpty. Operand 1508 states and 4358 transitions. [2022-03-15 15:23:51,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:51,629 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:51,629 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] [2022-03-15 15:23:51,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2022-03-15 15:23:51,629 INFO L402 AbstractCegarLoop]: === Iteration 177 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:51,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:51,629 INFO L85 PathProgramCache]: Analyzing trace with hash -2142426417, now seen corresponding path program 175 times [2022-03-15 15:23:51,629 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:51,629 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3568828] [2022-03-15 15:23:51,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:51,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:51,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:51,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:51,697 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:51,697 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3568828] [2022-03-15 15:23:51,697 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3568828] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:51,698 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:51,698 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:51,698 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854470168] [2022-03-15 15:23:51,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:51,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:51,698 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:51,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:51,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:51,698 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) [2022-03-15 15:23:51,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:51,949 INFO L93 Difference]: Finished difference Result 1766 states and 4965 transitions. [2022-03-15 15:23:51,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:51,949 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:51,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:51,952 INFO L225 Difference]: With dead ends: 1766 [2022-03-15 15:23:51,952 INFO L226 Difference]: Without dead ends: 1508 [2022-03-15 15:23:51,952 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:51,952 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 [2022-03-15 15:23:51,952 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] [2022-03-15 15:23:51,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1508 states. [2022-03-15 15:23:51,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1508 to 1438. [2022-03-15 15:23:51,964 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) [2022-03-15 15:23:51,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1438 states to 1438 states and 4077 transitions. [2022-03-15 15:23:51,966 INFO L78 Accepts]: Start accepts. Automaton has 1438 states and 4077 transitions. Word has length 26 [2022-03-15 15:23:51,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:51,966 INFO L470 AbstractCegarLoop]: Abstraction has 1438 states and 4077 transitions. [2022-03-15 15:23:51,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:51,966 INFO L276 IsEmpty]: Start isEmpty. Operand 1438 states and 4077 transitions. [2022-03-15 15:23:51,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:51,968 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:51,968 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:51,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2022-03-15 15:23:51,968 INFO L402 AbstractCegarLoop]: === Iteration 178 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:51,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:51,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1223058625, now seen corresponding path program 176 times [2022-03-15 15:23:51,968 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:51,968 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758313614] [2022-03-15 15:23:51,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:51,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:51,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:52,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:52,045 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:52,045 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758313614] [2022-03-15 15:23:52,045 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758313614] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:52,045 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:52,045 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:52,045 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179884068] [2022-03-15 15:23:52,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:52,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:52,045 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:52,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:52,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:52,045 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) [2022-03-15 15:23:52,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:52,280 INFO L93 Difference]: Finished difference Result 1656 states and 4633 transitions. [2022-03-15 15:23:52,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:52,281 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 [2022-03-15 15:23:52,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:52,282 INFO L225 Difference]: With dead ends: 1656 [2022-03-15 15:23:52,282 INFO L226 Difference]: Without dead ends: 1505 [2022-03-15 15:23:52,283 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 [2022-03-15 15:23:52,283 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 [2022-03-15 15:23:52,283 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] [2022-03-15 15:23:52,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1505 states. [2022-03-15 15:23:52,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1505 to 1438. [2022-03-15 15:23:52,297 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) [2022-03-15 15:23:52,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1438 states to 1438 states and 4065 transitions. [2022-03-15 15:23:52,299 INFO L78 Accepts]: Start accepts. Automaton has 1438 states and 4065 transitions. Word has length 26 [2022-03-15 15:23:52,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:52,299 INFO L470 AbstractCegarLoop]: Abstraction has 1438 states and 4065 transitions. [2022-03-15 15:23:52,299 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) [2022-03-15 15:23:52,299 INFO L276 IsEmpty]: Start isEmpty. Operand 1438 states and 4065 transitions. [2022-03-15 15:23:52,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:52,301 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:52,301 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] [2022-03-15 15:23:52,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2022-03-15 15:23:52,301 INFO L402 AbstractCegarLoop]: === Iteration 179 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:52,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:52,301 INFO L85 PathProgramCache]: Analyzing trace with hash -577637823, now seen corresponding path program 177 times [2022-03-15 15:23:52,301 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:52,301 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816721306] [2022-03-15 15:23:52,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:52,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:52,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:52,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:52,370 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:52,370 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816721306] [2022-03-15 15:23:52,370 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816721306] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:52,370 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:52,371 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:52,371 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968558480] [2022-03-15 15:23:52,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:52,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:52,371 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:52,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:52,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:52,371 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) [2022-03-15 15:23:52,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:52,619 INFO L93 Difference]: Finished difference Result 1661 states and 4643 transitions. [2022-03-15 15:23:52,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:52,620 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:52,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:52,622 INFO L225 Difference]: With dead ends: 1661 [2022-03-15 15:23:52,622 INFO L226 Difference]: Without dead ends: 1541 [2022-03-15 15:23:52,622 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:52,622 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 [2022-03-15 15:23:52,622 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] [2022-03-15 15:23:52,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1541 states. [2022-03-15 15:23:52,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1541 to 1464. [2022-03-15 15:23:52,634 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) [2022-03-15 15:23:52,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1464 states to 1464 states and 4141 transitions. [2022-03-15 15:23:52,637 INFO L78 Accepts]: Start accepts. Automaton has 1464 states and 4141 transitions. Word has length 26 [2022-03-15 15:23:52,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:52,637 INFO L470 AbstractCegarLoop]: Abstraction has 1464 states and 4141 transitions. [2022-03-15 15:23:52,637 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:52,637 INFO L276 IsEmpty]: Start isEmpty. Operand 1464 states and 4141 transitions. [2022-03-15 15:23:52,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:52,638 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:52,638 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:52,638 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2022-03-15 15:23:52,638 INFO L402 AbstractCegarLoop]: === Iteration 180 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:52,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:52,639 INFO L85 PathProgramCache]: Analyzing trace with hash -489701089, now seen corresponding path program 178 times [2022-03-15 15:23:52,639 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:52,639 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596051836] [2022-03-15 15:23:52,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:52,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:52,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:52,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:52,715 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:52,715 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596051836] [2022-03-15 15:23:52,715 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596051836] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:52,715 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:52,715 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:52,716 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800727700] [2022-03-15 15:23:52,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:52,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:52,716 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:52,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:52,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:52,716 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) [2022-03-15 15:23:52,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:52,956 INFO L93 Difference]: Finished difference Result 1719 states and 4756 transitions. [2022-03-15 15:23:52,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:52,956 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 [2022-03-15 15:23:52,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:52,959 INFO L225 Difference]: With dead ends: 1719 [2022-03-15 15:23:52,959 INFO L226 Difference]: Without dead ends: 1599 [2022-03-15 15:23:52,959 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:52,959 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 [2022-03-15 15:23:52,959 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] [2022-03-15 15:23:52,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1599 states. [2022-03-15 15:23:52,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1599 to 1456. [2022-03-15 15:23:52,971 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) [2022-03-15 15:23:52,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1456 states to 1456 states and 4120 transitions. [2022-03-15 15:23:52,973 INFO L78 Accepts]: Start accepts. Automaton has 1456 states and 4120 transitions. Word has length 26 [2022-03-15 15:23:52,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:52,973 INFO L470 AbstractCegarLoop]: Abstraction has 1456 states and 4120 transitions. [2022-03-15 15:23:52,973 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) [2022-03-15 15:23:52,974 INFO L276 IsEmpty]: Start isEmpty. Operand 1456 states and 4120 transitions. [2022-03-15 15:23:52,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:52,975 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:52,975 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:52,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2022-03-15 15:23:52,975 INFO L402 AbstractCegarLoop]: === Iteration 181 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:52,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:52,975 INFO L85 PathProgramCache]: Analyzing trace with hash -335263571, now seen corresponding path program 179 times [2022-03-15 15:23:52,975 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:52,976 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20853063] [2022-03-15 15:23:52,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:52,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:52,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:53,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:53,043 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:53,043 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20853063] [2022-03-15 15:23:53,043 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20853063] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:53,043 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:53,043 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:53,043 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339318381] [2022-03-15 15:23:53,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:53,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:53,043 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:53,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:53,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:53,044 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) [2022-03-15 15:23:53,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:53,299 INFO L93 Difference]: Finished difference Result 1748 states and 4846 transitions. [2022-03-15 15:23:53,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:53,299 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:53,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:53,301 INFO L225 Difference]: With dead ends: 1748 [2022-03-15 15:23:53,301 INFO L226 Difference]: Without dead ends: 1524 [2022-03-15 15:23:53,301 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:53,302 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 [2022-03-15 15:23:53,302 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] [2022-03-15 15:23:53,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1524 states. [2022-03-15 15:23:53,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1524 to 1396. [2022-03-15 15:23:53,314 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) [2022-03-15 15:23:53,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1396 states to 1396 states and 3950 transitions. [2022-03-15 15:23:53,316 INFO L78 Accepts]: Start accepts. Automaton has 1396 states and 3950 transitions. Word has length 26 [2022-03-15 15:23:53,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:53,316 INFO L470 AbstractCegarLoop]: Abstraction has 1396 states and 3950 transitions. [2022-03-15 15:23:53,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:53,316 INFO L276 IsEmpty]: Start isEmpty. Operand 1396 states and 3950 transitions. [2022-03-15 15:23:53,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:53,317 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:53,317 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:53,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2022-03-15 15:23:53,317 INFO L402 AbstractCegarLoop]: === Iteration 182 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:53,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:53,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1201044141, now seen corresponding path program 180 times [2022-03-15 15:23:53,318 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:53,318 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786989557] [2022-03-15 15:23:53,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:53,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:53,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:53,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:53,379 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:53,379 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786989557] [2022-03-15 15:23:53,379 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786989557] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:53,379 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:53,379 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:23:53,380 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018717918] [2022-03-15 15:23:53,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:53,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:23:53,380 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:53,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:23:53,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:23:53,380 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) [2022-03-15 15:23:53,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:53,570 INFO L93 Difference]: Finished difference Result 1674 states and 4682 transitions. [2022-03-15 15:23:53,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:23:53,570 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 [2022-03-15 15:23:53,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:53,573 INFO L225 Difference]: With dead ends: 1674 [2022-03-15 15:23:53,573 INFO L226 Difference]: Without dead ends: 1589 [2022-03-15 15:23:53,573 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 [2022-03-15 15:23:53,573 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 [2022-03-15 15:23:53,573 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] [2022-03-15 15:23:53,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1589 states. [2022-03-15 15:23:53,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1589 to 1426. [2022-03-15 15:23:53,585 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) [2022-03-15 15:23:53,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 4032 transitions. [2022-03-15 15:23:53,587 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 4032 transitions. Word has length 26 [2022-03-15 15:23:53,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:53,588 INFO L470 AbstractCegarLoop]: Abstraction has 1426 states and 4032 transitions. [2022-03-15 15:23:53,588 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) [2022-03-15 15:23:53,588 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 4032 transitions. [2022-03-15 15:23:53,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:53,589 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:53,589 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:53,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2022-03-15 15:23:53,589 INFO L402 AbstractCegarLoop]: === Iteration 183 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:53,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:53,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1157622229, now seen corresponding path program 181 times [2022-03-15 15:23:53,590 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:53,590 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196495122] [2022-03-15 15:23:53,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:53,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:53,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:53,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:53,658 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:53,658 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196495122] [2022-03-15 15:23:53,658 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196495122] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:53,658 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:53,658 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:53,658 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857882366] [2022-03-15 15:23:53,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:53,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:53,659 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:53,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:53,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:53,659 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) [2022-03-15 15:23:53,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:53,905 INFO L93 Difference]: Finished difference Result 1703 states and 4751 transitions. [2022-03-15 15:23:53,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:53,905 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 [2022-03-15 15:23:53,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:53,908 INFO L225 Difference]: With dead ends: 1703 [2022-03-15 15:23:53,908 INFO L226 Difference]: Without dead ends: 1516 [2022-03-15 15:23:53,908 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:53,908 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 [2022-03-15 15:23:53,908 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] [2022-03-15 15:23:53,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1516 states. [2022-03-15 15:23:53,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1516 to 1388. [2022-03-15 15:23:53,920 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) [2022-03-15 15:23:53,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 3911 transitions. [2022-03-15 15:23:53,922 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 3911 transitions. Word has length 26 [2022-03-15 15:23:53,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:53,922 INFO L470 AbstractCegarLoop]: Abstraction has 1388 states and 3911 transitions. [2022-03-15 15:23:53,922 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) [2022-03-15 15:23:53,922 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 3911 transitions. [2022-03-15 15:23:53,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:53,924 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:53,924 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] [2022-03-15 15:23:53,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2022-03-15 15:23:53,924 INFO L402 AbstractCegarLoop]: === Iteration 184 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:53,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:53,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1376182385, now seen corresponding path program 182 times [2022-03-15 15:23:53,924 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:53,924 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980743707] [2022-03-15 15:23:53,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:53,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:53,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:53,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:53,997 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:53,997 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980743707] [2022-03-15 15:23:53,997 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980743707] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:53,997 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:53,997 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:53,997 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027187565] [2022-03-15 15:23:53,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:53,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:53,997 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:53,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:53,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:53,998 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) [2022-03-15 15:23:54,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:54,231 INFO L93 Difference]: Finished difference Result 1583 states and 4394 transitions. [2022-03-15 15:23:54,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:54,232 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 [2022-03-15 15:23:54,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:54,234 INFO L225 Difference]: With dead ends: 1583 [2022-03-15 15:23:54,234 INFO L226 Difference]: Without dead ends: 1498 [2022-03-15 15:23:54,234 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 [2022-03-15 15:23:54,234 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 [2022-03-15 15:23:54,234 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] [2022-03-15 15:23:54,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1498 states. [2022-03-15 15:23:54,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1498 to 1378. [2022-03-15 15:23:54,246 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) [2022-03-15 15:23:54,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1378 states to 1378 states and 3890 transitions. [2022-03-15 15:23:54,248 INFO L78 Accepts]: Start accepts. Automaton has 1378 states and 3890 transitions. Word has length 26 [2022-03-15 15:23:54,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:54,248 INFO L470 AbstractCegarLoop]: Abstraction has 1378 states and 3890 transitions. [2022-03-15 15:23:54,248 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) [2022-03-15 15:23:54,248 INFO L276 IsEmpty]: Start isEmpty. Operand 1378 states and 3890 transitions. [2022-03-15 15:23:54,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:54,249 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:54,249 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] [2022-03-15 15:23:54,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2022-03-15 15:23:54,250 INFO L402 AbstractCegarLoop]: === Iteration 185 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:54,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:54,250 INFO L85 PathProgramCache]: Analyzing trace with hash -560118541, now seen corresponding path program 183 times [2022-03-15 15:23:54,250 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:54,250 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517283383] [2022-03-15 15:23:54,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:54,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:54,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:54,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:54,334 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:54,334 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517283383] [2022-03-15 15:23:54,334 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517283383] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:54,334 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:54,334 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:54,335 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458453230] [2022-03-15 15:23:54,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:54,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:54,335 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:54,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:54,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:54,335 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) [2022-03-15 15:23:54,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:54,587 INFO L93 Difference]: Finished difference Result 1537 states and 4286 transitions. [2022-03-15 15:23:54,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:54,588 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:54,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:54,590 INFO L225 Difference]: With dead ends: 1537 [2022-03-15 15:23:54,590 INFO L226 Difference]: Without dead ends: 1442 [2022-03-15 15:23:54,590 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 [2022-03-15 15:23:54,590 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 [2022-03-15 15:23:54,590 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] [2022-03-15 15:23:54,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1442 states. [2022-03-15 15:23:54,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1442 to 1390. [2022-03-15 15:23:54,602 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) [2022-03-15 15:23:54,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1390 states to 1390 states and 3916 transitions. [2022-03-15 15:23:54,604 INFO L78 Accepts]: Start accepts. Automaton has 1390 states and 3916 transitions. Word has length 26 [2022-03-15 15:23:54,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:54,604 INFO L470 AbstractCegarLoop]: Abstraction has 1390 states and 3916 transitions. [2022-03-15 15:23:54,604 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:54,604 INFO L276 IsEmpty]: Start isEmpty. Operand 1390 states and 3916 transitions. [2022-03-15 15:23:54,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:54,606 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:54,606 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:54,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2022-03-15 15:23:54,606 INFO L402 AbstractCegarLoop]: === Iteration 186 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:54,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:54,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1786937049, now seen corresponding path program 184 times [2022-03-15 15:23:54,606 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:54,607 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919284039] [2022-03-15 15:23:54,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:54,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:54,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:54,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:54,685 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:54,685 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919284039] [2022-03-15 15:23:54,686 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919284039] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:54,686 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:54,686 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:23:54,686 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475934090] [2022-03-15 15:23:54,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:54,686 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:23:54,686 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:54,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:23:54,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:23:54,686 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) [2022-03-15 15:23:54,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:54,876 INFO L93 Difference]: Finished difference Result 1645 states and 4600 transitions. [2022-03-15 15:23:54,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:23:54,876 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 [2022-03-15 15:23:54,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:54,878 INFO L225 Difference]: With dead ends: 1645 [2022-03-15 15:23:54,878 INFO L226 Difference]: Without dead ends: 1562 [2022-03-15 15:23:54,878 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 [2022-03-15 15:23:54,879 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 [2022-03-15 15:23:54,879 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] [2022-03-15 15:23:54,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1562 states. [2022-03-15 15:23:54,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1562 to 1396. [2022-03-15 15:23:54,898 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) [2022-03-15 15:23:54,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1396 states to 1396 states and 3925 transitions. [2022-03-15 15:23:54,900 INFO L78 Accepts]: Start accepts. Automaton has 1396 states and 3925 transitions. Word has length 26 [2022-03-15 15:23:54,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:54,900 INFO L470 AbstractCegarLoop]: Abstraction has 1396 states and 3925 transitions. [2022-03-15 15:23:54,900 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) [2022-03-15 15:23:54,900 INFO L276 IsEmpty]: Start isEmpty. Operand 1396 states and 3925 transitions. [2022-03-15 15:23:54,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:54,902 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:54,902 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:54,902 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2022-03-15 15:23:54,902 INFO L402 AbstractCegarLoop]: === Iteration 187 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:54,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:54,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1862609445, now seen corresponding path program 185 times [2022-03-15 15:23:54,902 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:54,902 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310823334] [2022-03-15 15:23:54,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:54,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:54,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:54,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:54,972 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:54,972 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310823334] [2022-03-15 15:23:54,972 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310823334] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:54,972 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:54,972 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:54,972 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470582255] [2022-03-15 15:23:54,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:54,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:54,973 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:54,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:54,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:54,973 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) [2022-03-15 15:23:55,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:55,226 INFO L93 Difference]: Finished difference Result 1543 states and 4300 transitions. [2022-03-15 15:23:55,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:55,226 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 [2022-03-15 15:23:55,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:55,228 INFO L225 Difference]: With dead ends: 1543 [2022-03-15 15:23:55,228 INFO L226 Difference]: Without dead ends: 1455 [2022-03-15 15:23:55,228 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:55,229 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 [2022-03-15 15:23:55,229 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] [2022-03-15 15:23:55,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1455 states. [2022-03-15 15:23:55,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1455 to 1392. [2022-03-15 15:23:55,244 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) [2022-03-15 15:23:55,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 3919 transitions. [2022-03-15 15:23:55,247 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 3919 transitions. Word has length 26 [2022-03-15 15:23:55,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:55,247 INFO L470 AbstractCegarLoop]: Abstraction has 1392 states and 3919 transitions. [2022-03-15 15:23:55,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:55,247 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 3919 transitions. [2022-03-15 15:23:55,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:55,249 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:55,249 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] [2022-03-15 15:23:55,249 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2022-03-15 15:23:55,249 INFO L402 AbstractCegarLoop]: === Iteration 188 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:55,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:55,249 INFO L85 PathProgramCache]: Analyzing trace with hash -1774672711, now seen corresponding path program 186 times [2022-03-15 15:23:55,250 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:55,250 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367281883] [2022-03-15 15:23:55,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:55,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:55,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:55,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:55,320 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:55,320 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367281883] [2022-03-15 15:23:55,320 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367281883] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:55,320 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:55,320 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:55,320 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427275524] [2022-03-15 15:23:55,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:55,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:55,321 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:55,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:55,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:55,321 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) [2022-03-15 15:23:55,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:55,551 INFO L93 Difference]: Finished difference Result 1684 states and 4690 transitions. [2022-03-15 15:23:55,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:55,552 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:55,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:55,554 INFO L225 Difference]: With dead ends: 1684 [2022-03-15 15:23:55,554 INFO L226 Difference]: Without dead ends: 1596 [2022-03-15 15:23:55,554 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:55,555 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 [2022-03-15 15:23:55,555 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] [2022-03-15 15:23:55,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1596 states. [2022-03-15 15:23:55,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1596 to 1416. [2022-03-15 15:23:55,567 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) [2022-03-15 15:23:55,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1416 states to 1416 states and 3990 transitions. [2022-03-15 15:23:55,569 INFO L78 Accepts]: Start accepts. Automaton has 1416 states and 3990 transitions. Word has length 26 [2022-03-15 15:23:55,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:55,569 INFO L470 AbstractCegarLoop]: Abstraction has 1416 states and 3990 transitions. [2022-03-15 15:23:55,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:55,569 INFO L276 IsEmpty]: Start isEmpty. Operand 1416 states and 3990 transitions. [2022-03-15 15:23:55,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:55,571 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:55,571 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:55,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2022-03-15 15:23:55,571 INFO L402 AbstractCegarLoop]: === Iteration 189 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:55,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:55,571 INFO L85 PathProgramCache]: Analyzing trace with hash 757057999, now seen corresponding path program 187 times [2022-03-15 15:23:55,571 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:55,572 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237217277] [2022-03-15 15:23:55,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:55,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:55,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:55,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:55,637 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:55,637 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237217277] [2022-03-15 15:23:55,637 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237217277] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:55,637 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:55,637 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:23:55,637 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409096914] [2022-03-15 15:23:55,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:55,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:23:55,637 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:55,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:23:55,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:23:55,638 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) [2022-03-15 15:23:55,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:55,842 INFO L93 Difference]: Finished difference Result 1704 states and 4749 transitions. [2022-03-15 15:23:55,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:23:55,842 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 [2022-03-15 15:23:55,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:55,844 INFO L225 Difference]: With dead ends: 1704 [2022-03-15 15:23:55,844 INFO L226 Difference]: Without dead ends: 1544 [2022-03-15 15:23:55,845 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 [2022-03-15 15:23:55,845 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 56 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 558 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:23:55,845 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] [2022-03-15 15:23:55,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1544 states. [2022-03-15 15:23:55,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1544 to 1404. [2022-03-15 15:23:55,857 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) [2022-03-15 15:23:55,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 3956 transitions. [2022-03-15 15:23:55,859 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 3956 transitions. Word has length 26 [2022-03-15 15:23:55,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:55,859 INFO L470 AbstractCegarLoop]: Abstraction has 1404 states and 3956 transitions. [2022-03-15 15:23:55,859 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) [2022-03-15 15:23:55,860 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 3956 transitions. [2022-03-15 15:23:55,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:55,861 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:55,861 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:55,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2022-03-15 15:23:55,861 INFO L402 AbstractCegarLoop]: === Iteration 190 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:55,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:55,861 INFO L85 PathProgramCache]: Analyzing trace with hash -822373647, now seen corresponding path program 188 times [2022-03-15 15:23:55,861 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:55,862 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135504580] [2022-03-15 15:23:55,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:55,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:55,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:55,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:55,941 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:55,941 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135504580] [2022-03-15 15:23:55,941 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135504580] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:55,941 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:55,941 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:55,942 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590462844] [2022-03-15 15:23:55,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:55,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:55,942 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:55,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:55,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:55,942 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) [2022-03-15 15:23:56,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:56,196 INFO L93 Difference]: Finished difference Result 1611 states and 4453 transitions. [2022-03-15 15:23:56,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:56,196 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:56,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:56,198 INFO L225 Difference]: With dead ends: 1611 [2022-03-15 15:23:56,198 INFO L226 Difference]: Without dead ends: 1492 [2022-03-15 15:23:56,198 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:56,198 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 [2022-03-15 15:23:56,198 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] [2022-03-15 15:23:56,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1492 states. [2022-03-15 15:23:56,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1492 to 1394. [2022-03-15 15:23:56,218 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) [2022-03-15 15:23:56,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 3934 transitions. [2022-03-15 15:23:56,220 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 3934 transitions. Word has length 26 [2022-03-15 15:23:56,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:56,220 INFO L470 AbstractCegarLoop]: Abstraction has 1394 states and 3934 transitions. [2022-03-15 15:23:56,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:56,220 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 3934 transitions. [2022-03-15 15:23:56,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:56,222 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:56,222 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:56,222 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2022-03-15 15:23:56,222 INFO L402 AbstractCegarLoop]: === Iteration 191 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:56,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:56,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1651145999, now seen corresponding path program 189 times [2022-03-15 15:23:56,222 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:56,222 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214445381] [2022-03-15 15:23:56,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:56,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:56,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:56,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:56,292 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:56,292 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214445381] [2022-03-15 15:23:56,292 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214445381] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:56,292 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:56,292 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:56,293 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130973786] [2022-03-15 15:23:56,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:56,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:56,293 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:56,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:56,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:56,293 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) [2022-03-15 15:23:56,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:56,526 INFO L93 Difference]: Finished difference Result 1557 states and 4341 transitions. [2022-03-15 15:23:56,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:56,526 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:56,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:56,528 INFO L225 Difference]: With dead ends: 1557 [2022-03-15 15:23:56,528 INFO L226 Difference]: Without dead ends: 1472 [2022-03-15 15:23:56,528 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:56,528 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 [2022-03-15 15:23:56,528 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] [2022-03-15 15:23:56,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1472 states. [2022-03-15 15:23:56,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1472 to 1396. [2022-03-15 15:23:56,540 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) [2022-03-15 15:23:56,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1396 states to 1396 states and 3942 transitions. [2022-03-15 15:23:56,542 INFO L78 Accepts]: Start accepts. Automaton has 1396 states and 3942 transitions. Word has length 26 [2022-03-15 15:23:56,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:56,542 INFO L470 AbstractCegarLoop]: Abstraction has 1396 states and 3942 transitions. [2022-03-15 15:23:56,542 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) [2022-03-15 15:23:56,542 INFO L276 IsEmpty]: Start isEmpty. Operand 1396 states and 3942 transitions. [2022-03-15 15:23:56,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:56,544 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:56,544 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] [2022-03-15 15:23:56,545 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2022-03-15 15:23:56,545 INFO L402 AbstractCegarLoop]: === Iteration 192 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:56,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:56,545 INFO L85 PathProgramCache]: Analyzing trace with hash -285154927, now seen corresponding path program 190 times [2022-03-15 15:23:56,546 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:56,546 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299061526] [2022-03-15 15:23:56,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:56,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:56,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:56,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:56,618 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:56,618 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299061526] [2022-03-15 15:23:56,618 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299061526] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:56,618 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:56,618 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:56,618 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658726723] [2022-03-15 15:23:56,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:56,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:56,618 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:56,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:56,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:56,619 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) [2022-03-15 15:23:56,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:56,872 INFO L93 Difference]: Finished difference Result 1544 states and 4317 transitions. [2022-03-15 15:23:56,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:56,872 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:56,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:56,874 INFO L225 Difference]: With dead ends: 1544 [2022-03-15 15:23:56,874 INFO L226 Difference]: Without dead ends: 1449 [2022-03-15 15:23:56,874 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:56,875 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 [2022-03-15 15:23:56,875 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] [2022-03-15 15:23:56,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1449 states. [2022-03-15 15:23:56,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1449 to 1400. [2022-03-15 15:23:56,887 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) [2022-03-15 15:23:56,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1400 states to 1400 states and 3955 transitions. [2022-03-15 15:23:56,889 INFO L78 Accepts]: Start accepts. Automaton has 1400 states and 3955 transitions. Word has length 26 [2022-03-15 15:23:56,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:56,889 INFO L470 AbstractCegarLoop]: Abstraction has 1400 states and 3955 transitions. [2022-03-15 15:23:56,889 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) [2022-03-15 15:23:56,889 INFO L276 IsEmpty]: Start isEmpty. Operand 1400 states and 3955 transitions. [2022-03-15 15:23:56,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:56,891 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:56,891 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] [2022-03-15 15:23:56,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2022-03-15 15:23:56,892 INFO L402 AbstractCegarLoop]: === Iteration 193 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:56,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:56,892 INFO L85 PathProgramCache]: Analyzing trace with hash 82217457, now seen corresponding path program 191 times [2022-03-15 15:23:56,892 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:56,892 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727583505] [2022-03-15 15:23:56,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:56,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:56,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:56,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:56,962 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:56,962 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727583505] [2022-03-15 15:23:56,962 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727583505] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:56,962 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:56,962 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:56,962 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763866672] [2022-03-15 15:23:56,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:56,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:56,963 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:56,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:56,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:56,963 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) [2022-03-15 15:23:57,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:57,193 INFO L93 Difference]: Finished difference Result 1551 states and 4333 transitions. [2022-03-15 15:23:57,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:57,194 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:57,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:57,196 INFO L225 Difference]: With dead ends: 1551 [2022-03-15 15:23:57,196 INFO L226 Difference]: Without dead ends: 1466 [2022-03-15 15:23:57,196 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 [2022-03-15 15:23:57,196 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 [2022-03-15 15:23:57,196 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] [2022-03-15 15:23:57,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1466 states. [2022-03-15 15:23:57,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1466 to 1398. [2022-03-15 15:23:57,208 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) [2022-03-15 15:23:57,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1398 states to 1398 states and 3948 transitions. [2022-03-15 15:23:57,210 INFO L78 Accepts]: Start accepts. Automaton has 1398 states and 3948 transitions. Word has length 26 [2022-03-15 15:23:57,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:57,211 INFO L470 AbstractCegarLoop]: Abstraction has 1398 states and 3948 transitions. [2022-03-15 15:23:57,211 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:57,211 INFO L276 IsEmpty]: Start isEmpty. Operand 1398 states and 3948 transitions. [2022-03-15 15:23:57,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:57,212 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:57,212 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:57,212 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2022-03-15 15:23:57,212 INFO L402 AbstractCegarLoop]: === Iteration 194 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:57,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:57,212 INFO L85 PathProgramCache]: Analyzing trace with hash 2061900663, now seen corresponding path program 192 times [2022-03-15 15:23:57,213 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:57,213 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032228950] [2022-03-15 15:23:57,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:57,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:57,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:57,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:57,300 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:57,300 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032228950] [2022-03-15 15:23:57,300 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032228950] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:57,300 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:57,300 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:57,300 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010452102] [2022-03-15 15:23:57,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:57,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:57,301 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:57,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:57,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:57,301 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) [2022-03-15 15:23:57,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:57,542 INFO L93 Difference]: Finished difference Result 1561 states and 4348 transitions. [2022-03-15 15:23:57,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:57,542 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 [2022-03-15 15:23:57,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:57,545 INFO L225 Difference]: With dead ends: 1561 [2022-03-15 15:23:57,545 INFO L226 Difference]: Without dead ends: 1478 [2022-03-15 15:23:57,545 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 [2022-03-15 15:23:57,545 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 [2022-03-15 15:23:57,545 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] [2022-03-15 15:23:57,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1478 states. [2022-03-15 15:23:57,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1478 to 1398. [2022-03-15 15:23:57,557 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) [2022-03-15 15:23:57,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1398 states to 1398 states and 3946 transitions. [2022-03-15 15:23:57,559 INFO L78 Accepts]: Start accepts. Automaton has 1398 states and 3946 transitions. Word has length 26 [2022-03-15 15:23:57,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:57,559 INFO L470 AbstractCegarLoop]: Abstraction has 1398 states and 3946 transitions. [2022-03-15 15:23:57,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:57,559 INFO L276 IsEmpty]: Start isEmpty. Operand 1398 states and 3946 transitions. [2022-03-15 15:23:57,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:57,561 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:57,561 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:57,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2022-03-15 15:23:57,561 INFO L402 AbstractCegarLoop]: === Iteration 195 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:57,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:57,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1587645831, now seen corresponding path program 193 times [2022-03-15 15:23:57,561 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:57,561 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965630616] [2022-03-15 15:23:57,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:57,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:57,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:57,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:57,635 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:57,635 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965630616] [2022-03-15 15:23:57,635 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965630616] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:57,635 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:57,635 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:57,635 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368531993] [2022-03-15 15:23:57,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:57,636 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:57,636 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:57,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:57,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:57,636 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) [2022-03-15 15:23:57,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:57,888 INFO L93 Difference]: Finished difference Result 1541 states and 4312 transitions. [2022-03-15 15:23:57,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:57,889 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 [2022-03-15 15:23:57,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:57,891 INFO L225 Difference]: With dead ends: 1541 [2022-03-15 15:23:57,891 INFO L226 Difference]: Without dead ends: 1453 [2022-03-15 15:23:57,891 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 [2022-03-15 15:23:57,891 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 [2022-03-15 15:23:57,891 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] [2022-03-15 15:23:57,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1453 states. [2022-03-15 15:23:57,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1453 to 1399. [2022-03-15 15:23:57,903 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) [2022-03-15 15:23:57,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1399 states to 1399 states and 3950 transitions. [2022-03-15 15:23:57,904 INFO L78 Accepts]: Start accepts. Automaton has 1399 states and 3950 transitions. Word has length 26 [2022-03-15 15:23:57,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:57,905 INFO L470 AbstractCegarLoop]: Abstraction has 1399 states and 3950 transitions. [2022-03-15 15:23:57,905 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:57,905 INFO L276 IsEmpty]: Start isEmpty. Operand 1399 states and 3950 transitions. [2022-03-15 15:23:57,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:57,906 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:57,906 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:57,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2022-03-15 15:23:57,906 INFO L402 AbstractCegarLoop]: === Iteration 196 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:57,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:57,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1499709097, now seen corresponding path program 194 times [2022-03-15 15:23:57,907 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:57,907 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629754859] [2022-03-15 15:23:57,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:57,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:57,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:57,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:57,983 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:57,984 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629754859] [2022-03-15 15:23:57,984 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629754859] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:57,984 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:57,984 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:57,984 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895692464] [2022-03-15 15:23:57,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:57,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:57,984 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:57,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:57,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:57,986 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) [2022-03-15 15:23:58,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:58,225 INFO L93 Difference]: Finished difference Result 1549 states and 4315 transitions. [2022-03-15 15:23:58,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:58,225 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:58,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:58,227 INFO L225 Difference]: With dead ends: 1549 [2022-03-15 15:23:58,227 INFO L226 Difference]: Without dead ends: 1461 [2022-03-15 15:23:58,227 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:58,231 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 [2022-03-15 15:23:58,231 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] [2022-03-15 15:23:58,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1461 states. [2022-03-15 15:23:58,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1461 to 1400. [2022-03-15 15:23:58,248 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) [2022-03-15 15:23:58,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1400 states to 1400 states and 3955 transitions. [2022-03-15 15:23:58,251 INFO L78 Accepts]: Start accepts. Automaton has 1400 states and 3955 transitions. Word has length 26 [2022-03-15 15:23:58,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:58,251 INFO L470 AbstractCegarLoop]: Abstraction has 1400 states and 3955 transitions. [2022-03-15 15:23:58,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:58,251 INFO L276 IsEmpty]: Start isEmpty. Operand 1400 states and 3955 transitions. [2022-03-15 15:23:58,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:58,253 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:58,253 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] [2022-03-15 15:23:58,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2022-03-15 15:23:58,253 INFO L402 AbstractCegarLoop]: === Iteration 197 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:58,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:58,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1444338033, now seen corresponding path program 195 times [2022-03-15 15:23:58,254 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:58,254 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045184187] [2022-03-15 15:23:58,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:58,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:58,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:58,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:58,337 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:58,337 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045184187] [2022-03-15 15:23:58,337 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045184187] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:58,337 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:58,337 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:58,337 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382400953] [2022-03-15 15:23:58,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:58,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:58,337 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:58,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:58,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:58,338 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) [2022-03-15 15:23:58,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:58,580 INFO L93 Difference]: Finished difference Result 1607 states and 4488 transitions. [2022-03-15 15:23:58,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:58,580 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 [2022-03-15 15:23:58,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:58,582 INFO L225 Difference]: With dead ends: 1607 [2022-03-15 15:23:58,582 INFO L226 Difference]: Without dead ends: 1522 [2022-03-15 15:23:58,582 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 [2022-03-15 15:23:58,582 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 [2022-03-15 15:23:58,583 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] [2022-03-15 15:23:58,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1522 states. [2022-03-15 15:23:58,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1522 to 1400. [2022-03-15 15:23:58,594 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) [2022-03-15 15:23:58,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1400 states to 1400 states and 3955 transitions. [2022-03-15 15:23:58,596 INFO L78 Accepts]: Start accepts. Automaton has 1400 states and 3955 transitions. Word has length 26 [2022-03-15 15:23:58,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:58,596 INFO L470 AbstractCegarLoop]: Abstraction has 1400 states and 3955 transitions. [2022-03-15 15:23:58,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:58,596 INFO L276 IsEmpty]: Start isEmpty. Operand 1400 states and 3955 transitions. [2022-03-15 15:23:58,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:58,598 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:58,598 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] [2022-03-15 15:23:58,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2022-03-15 15:23:58,598 INFO L402 AbstractCegarLoop]: === Iteration 198 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:58,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:58,598 INFO L85 PathProgramCache]: Analyzing trace with hash -491962893, now seen corresponding path program 196 times [2022-03-15 15:23:58,598 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:58,598 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369788716] [2022-03-15 15:23:58,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:58,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:58,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:58,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:58,669 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:58,669 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369788716] [2022-03-15 15:23:58,669 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369788716] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:58,669 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:58,669 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:58,669 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119797732] [2022-03-15 15:23:58,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:58,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:58,669 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:58,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:58,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:58,670 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) [2022-03-15 15:23:58,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:58,925 INFO L93 Difference]: Finished difference Result 1617 states and 4532 transitions. [2022-03-15 15:23:58,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:58,925 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:58,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:58,927 INFO L225 Difference]: With dead ends: 1617 [2022-03-15 15:23:58,927 INFO L226 Difference]: Without dead ends: 1522 [2022-03-15 15:23:58,927 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:58,928 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 [2022-03-15 15:23:58,928 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] [2022-03-15 15:23:58,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1522 states. [2022-03-15 15:23:58,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1522 to 1407. [2022-03-15 15:23:58,940 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) [2022-03-15 15:23:58,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1407 states to 1407 states and 3972 transitions. [2022-03-15 15:23:58,941 INFO L78 Accepts]: Start accepts. Automaton has 1407 states and 3972 transitions. Word has length 26 [2022-03-15 15:23:58,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:58,942 INFO L470 AbstractCegarLoop]: Abstraction has 1407 states and 3972 transitions. [2022-03-15 15:23:58,942 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) [2022-03-15 15:23:58,942 INFO L276 IsEmpty]: Start isEmpty. Operand 1407 states and 3972 transitions. [2022-03-15 15:23:58,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:58,943 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:58,943 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:58,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2022-03-15 15:23:58,943 INFO L402 AbstractCegarLoop]: === Iteration 199 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:58,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:58,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1817274959, now seen corresponding path program 197 times [2022-03-15 15:23:58,944 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:58,944 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705105820] [2022-03-15 15:23:58,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:58,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:58,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:59,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:59,019 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:59,019 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705105820] [2022-03-15 15:23:59,019 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705105820] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:59,019 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:59,019 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:59,019 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255874776] [2022-03-15 15:23:59,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:59,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:59,019 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:59,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:59,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:59,020 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) [2022-03-15 15:23:59,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:59,276 INFO L93 Difference]: Finished difference Result 1602 states and 4492 transitions. [2022-03-15 15:23:59,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:59,276 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:59,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:59,278 INFO L225 Difference]: With dead ends: 1602 [2022-03-15 15:23:59,278 INFO L226 Difference]: Without dead ends: 1502 [2022-03-15 15:23:59,278 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:59,278 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 [2022-03-15 15:23:59,278 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] [2022-03-15 15:23:59,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1502 states. [2022-03-15 15:23:59,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1502 to 1405. [2022-03-15 15:23:59,291 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) [2022-03-15 15:23:59,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1405 states to 1405 states and 3969 transitions. [2022-03-15 15:23:59,293 INFO L78 Accepts]: Start accepts. Automaton has 1405 states and 3969 transitions. Word has length 26 [2022-03-15 15:23:59,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:59,293 INFO L470 AbstractCegarLoop]: Abstraction has 1405 states and 3969 transitions. [2022-03-15 15:23:59,293 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) [2022-03-15 15:23:59,293 INFO L276 IsEmpty]: Start isEmpty. Operand 1405 states and 3969 transitions. [2022-03-15 15:23:59,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:59,294 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:59,294 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:59,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2022-03-15 15:23:59,294 INFO L402 AbstractCegarLoop]: === Iteration 200 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:59,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:59,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1969715623, now seen corresponding path program 198 times [2022-03-15 15:23:59,295 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:59,295 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961403070] [2022-03-15 15:23:59,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:59,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:59,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:59,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:59,360 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:59,360 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961403070] [2022-03-15 15:23:59,360 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961403070] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:59,360 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:59,360 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:23:59,360 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732617475] [2022-03-15 15:23:59,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:59,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:23:59,361 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:59,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:23:59,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:23:59,361 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) [2022-03-15 15:23:59,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:59,545 INFO L93 Difference]: Finished difference Result 1611 states and 4507 transitions. [2022-03-15 15:23:59,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:23:59,546 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 [2022-03-15 15:23:59,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:59,548 INFO L225 Difference]: With dead ends: 1611 [2022-03-15 15:23:59,548 INFO L226 Difference]: Without dead ends: 1524 [2022-03-15 15:23:59,548 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 [2022-03-15 15:23:59,548 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 [2022-03-15 15:23:59,548 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] [2022-03-15 15:23:59,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1524 states. [2022-03-15 15:23:59,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1524 to 1406. [2022-03-15 15:23:59,560 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) [2022-03-15 15:23:59,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1406 states to 1406 states and 3972 transitions. [2022-03-15 15:23:59,562 INFO L78 Accepts]: Start accepts. Automaton has 1406 states and 3972 transitions. Word has length 26 [2022-03-15 15:23:59,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:59,562 INFO L470 AbstractCegarLoop]: Abstraction has 1406 states and 3972 transitions. [2022-03-15 15:23:59,562 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) [2022-03-15 15:23:59,562 INFO L276 IsEmpty]: Start isEmpty. Operand 1406 states and 3972 transitions. [2022-03-15 15:23:59,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:59,564 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:59,564 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:59,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2022-03-15 15:23:59,564 INFO L402 AbstractCegarLoop]: === Iteration 201 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:59,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:59,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1643998427, now seen corresponding path program 199 times [2022-03-15 15:23:59,564 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:59,564 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906529888] [2022-03-15 15:23:59,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:59,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:59,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:59,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:59,636 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:59,636 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906529888] [2022-03-15 15:23:59,636 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906529888] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:59,636 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:59,636 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:59,636 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405655271] [2022-03-15 15:23:59,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:59,636 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:59,636 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:59,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:59,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:59,637 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) [2022-03-15 15:23:59,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:59,891 INFO L93 Difference]: Finished difference Result 1550 states and 4346 transitions. [2022-03-15 15:23:59,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:23:59,891 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:23:59,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:59,893 INFO L225 Difference]: With dead ends: 1550 [2022-03-15 15:23:59,893 INFO L226 Difference]: Without dead ends: 1462 [2022-03-15 15:23:59,893 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:59,894 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 [2022-03-15 15:23:59,894 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] [2022-03-15 15:23:59,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1462 states. [2022-03-15 15:23:59,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1462 to 1408. [2022-03-15 15:23:59,905 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) [2022-03-15 15:23:59,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1408 states to 1408 states and 3979 transitions. [2022-03-15 15:23:59,907 INFO L78 Accepts]: Start accepts. Automaton has 1408 states and 3979 transitions. Word has length 26 [2022-03-15 15:23:59,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:59,907 INFO L470 AbstractCegarLoop]: Abstraction has 1408 states and 3979 transitions. [2022-03-15 15:23:59,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:59,907 INFO L276 IsEmpty]: Start isEmpty. Operand 1408 states and 3979 transitions. [2022-03-15 15:23:59,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:59,909 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:59,909 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:59,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2022-03-15 15:23:59,909 INFO L402 AbstractCegarLoop]: === Iteration 202 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:23:59,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:59,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1731935161, now seen corresponding path program 200 times [2022-03-15 15:23:59,909 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:59,909 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899044863] [2022-03-15 15:23:59,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:59,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:59,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:59,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:59,985 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:59,986 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899044863] [2022-03-15 15:23:59,986 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899044863] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:59,986 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:59,986 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:23:59,986 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784924893] [2022-03-15 15:23:59,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:59,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:23:59,986 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:59,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:23:59,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:59,986 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) [2022-03-15 15:24:00,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:00,230 INFO L93 Difference]: Finished difference Result 1554 states and 4338 transitions. [2022-03-15 15:24:00,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:00,230 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:00,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:00,232 INFO L225 Difference]: With dead ends: 1554 [2022-03-15 15:24:00,232 INFO L226 Difference]: Without dead ends: 1468 [2022-03-15 15:24:00,232 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:00,232 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 [2022-03-15 15:24:00,233 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] [2022-03-15 15:24:00,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1468 states. [2022-03-15 15:24:00,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1468 to 1407. [2022-03-15 15:24:00,244 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) [2022-03-15 15:24:00,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1407 states to 1407 states and 3972 transitions. [2022-03-15 15:24:00,246 INFO L78 Accepts]: Start accepts. Automaton has 1407 states and 3972 transitions. Word has length 26 [2022-03-15 15:24:00,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:00,246 INFO L470 AbstractCegarLoop]: Abstraction has 1407 states and 3972 transitions. [2022-03-15 15:24:00,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:00,246 INFO L276 IsEmpty]: Start isEmpty. Operand 1407 states and 3972 transitions. [2022-03-15 15:24:00,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:00,248 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:00,248 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] [2022-03-15 15:24:00,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2022-03-15 15:24:00,248 INFO L402 AbstractCegarLoop]: === Iteration 203 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:00,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:00,248 INFO L85 PathProgramCache]: Analyzing trace with hash 251853881, now seen corresponding path program 201 times [2022-03-15 15:24:00,248 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:00,248 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043653128] [2022-03-15 15:24:00,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:00,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:00,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:00,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:00,321 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:00,321 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043653128] [2022-03-15 15:24:00,321 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043653128] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:00,321 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:00,321 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:00,321 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867821781] [2022-03-15 15:24:00,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:00,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:00,321 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:00,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:00,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:00,321 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) [2022-03-15 15:24:00,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:00,592 INFO L93 Difference]: Finished difference Result 1620 states and 4536 transitions. [2022-03-15 15:24:00,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:00,593 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:00,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:00,595 INFO L225 Difference]: With dead ends: 1620 [2022-03-15 15:24:00,595 INFO L226 Difference]: Without dead ends: 1523 [2022-03-15 15:24:00,595 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:00,595 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 15:24:00,595 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 231 Invalid, 733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 723 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 15:24:00,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1523 states. [2022-03-15 15:24:00,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1523 to 1419. [2022-03-15 15:24:00,607 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) [2022-03-15 15:24:00,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1419 states to 1419 states and 4001 transitions. [2022-03-15 15:24:00,609 INFO L78 Accepts]: Start accepts. Automaton has 1419 states and 4001 transitions. Word has length 26 [2022-03-15 15:24:00,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:00,609 INFO L470 AbstractCegarLoop]: Abstraction has 1419 states and 4001 transitions. [2022-03-15 15:24:00,609 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) [2022-03-15 15:24:00,609 INFO L276 IsEmpty]: Start isEmpty. Operand 1419 states and 4001 transitions. [2022-03-15 15:24:00,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:00,611 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:00,611 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:00,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2022-03-15 15:24:00,611 INFO L402 AbstractCegarLoop]: === Iteration 204 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:00,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:00,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1642175511, now seen corresponding path program 202 times [2022-03-15 15:24:00,611 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:00,611 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726513122] [2022-03-15 15:24:00,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:00,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:00,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:00,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:00,682 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:00,682 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726513122] [2022-03-15 15:24:00,682 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726513122] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:00,682 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:00,682 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:00,682 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537905167] [2022-03-15 15:24:00,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:00,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:00,682 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:00,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:00,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:00,682 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) [2022-03-15 15:24:00,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:00,908 INFO L93 Difference]: Finished difference Result 1652 states and 4605 transitions. [2022-03-15 15:24:00,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:00,909 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:00,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:00,911 INFO L225 Difference]: With dead ends: 1652 [2022-03-15 15:24:00,911 INFO L226 Difference]: Without dead ends: 1563 [2022-03-15 15:24:00,911 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:00,911 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 [2022-03-15 15:24:00,911 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] [2022-03-15 15:24:00,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1563 states. [2022-03-15 15:24:00,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1563 to 1418. [2022-03-15 15:24:00,923 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) [2022-03-15 15:24:00,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1418 states to 1418 states and 4000 transitions. [2022-03-15 15:24:00,925 INFO L78 Accepts]: Start accepts. Automaton has 1418 states and 4000 transitions. Word has length 26 [2022-03-15 15:24:00,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:00,926 INFO L470 AbstractCegarLoop]: Abstraction has 1418 states and 4000 transitions. [2022-03-15 15:24:00,926 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) [2022-03-15 15:24:00,926 INFO L276 IsEmpty]: Start isEmpty. Operand 1418 states and 4000 transitions. [2022-03-15 15:24:00,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:00,927 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:00,927 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] [2022-03-15 15:24:00,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2022-03-15 15:24:00,927 INFO L402 AbstractCegarLoop]: === Iteration 205 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:00,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:00,928 INFO L85 PathProgramCache]: Analyzing trace with hash -2141185107, now seen corresponding path program 203 times [2022-03-15 15:24:00,928 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:00,928 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341499944] [2022-03-15 15:24:00,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:00,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:00,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:00,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:00,989 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:00,989 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341499944] [2022-03-15 15:24:00,989 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341499944] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:00,989 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:00,989 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:24:00,989 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510048504] [2022-03-15 15:24:00,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:00,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:24:00,990 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:00,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:24:00,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:24:00,990 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) [2022-03-15 15:24:01,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:01,192 INFO L93 Difference]: Finished difference Result 1692 states and 4710 transitions. [2022-03-15 15:24:01,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:24:01,192 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 [2022-03-15 15:24:01,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:01,194 INFO L225 Difference]: With dead ends: 1692 [2022-03-15 15:24:01,194 INFO L226 Difference]: Without dead ends: 1504 [2022-03-15 15:24:01,194 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 [2022-03-15 15:24:01,194 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 58 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 551 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:24:01,194 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] [2022-03-15 15:24:01,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1504 states. [2022-03-15 15:24:01,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1504 to 1400. [2022-03-15 15:24:01,206 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) [2022-03-15 15:24:01,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1400 states to 1400 states and 3920 transitions. [2022-03-15 15:24:01,208 INFO L78 Accepts]: Start accepts. Automaton has 1400 states and 3920 transitions. Word has length 26 [2022-03-15 15:24:01,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:01,208 INFO L470 AbstractCegarLoop]: Abstraction has 1400 states and 3920 transitions. [2022-03-15 15:24:01,208 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) [2022-03-15 15:24:01,208 INFO L276 IsEmpty]: Start isEmpty. Operand 1400 states and 3920 transitions. [2022-03-15 15:24:01,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:01,210 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:01,210 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:01,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204 [2022-03-15 15:24:01,210 INFO L402 AbstractCegarLoop]: === Iteration 206 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:01,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:01,210 INFO L85 PathProgramCache]: Analyzing trace with hash 574350543, now seen corresponding path program 204 times [2022-03-15 15:24:01,210 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:01,210 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478174430] [2022-03-15 15:24:01,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:01,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:01,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:01,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:01,278 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:01,278 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478174430] [2022-03-15 15:24:01,278 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478174430] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:01,278 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:01,278 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:01,278 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094774712] [2022-03-15 15:24:01,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:01,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:01,278 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:01,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:01,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:01,279 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) [2022-03-15 15:24:01,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:01,532 INFO L93 Difference]: Finished difference Result 1597 states and 4423 transitions. [2022-03-15 15:24:01,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:01,532 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 [2022-03-15 15:24:01,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:01,534 INFO L225 Difference]: With dead ends: 1597 [2022-03-15 15:24:01,534 INFO L226 Difference]: Without dead ends: 1470 [2022-03-15 15:24:01,534 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 [2022-03-15 15:24:01,534 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 [2022-03-15 15:24:01,534 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] [2022-03-15 15:24:01,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1470 states. [2022-03-15 15:24:01,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1470 to 1368. [2022-03-15 15:24:01,546 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) [2022-03-15 15:24:01,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1368 states to 1368 states and 3839 transitions. [2022-03-15 15:24:01,548 INFO L78 Accepts]: Start accepts. Automaton has 1368 states and 3839 transitions. Word has length 26 [2022-03-15 15:24:01,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:01,548 INFO L470 AbstractCegarLoop]: Abstraction has 1368 states and 3839 transitions. [2022-03-15 15:24:01,548 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:01,548 INFO L276 IsEmpty]: Start isEmpty. Operand 1368 states and 3839 transitions. [2022-03-15 15:24:01,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:01,549 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:01,549 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:01,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable205 [2022-03-15 15:24:01,550 INFO L402 AbstractCegarLoop]: === Iteration 207 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:01,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:01,550 INFO L85 PathProgramCache]: Analyzing trace with hash 583220337, now seen corresponding path program 205 times [2022-03-15 15:24:01,550 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:01,550 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048068682] [2022-03-15 15:24:01,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:01,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:01,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:01,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:01,619 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:01,619 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048068682] [2022-03-15 15:24:01,619 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048068682] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:01,620 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:01,620 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:01,620 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946803173] [2022-03-15 15:24:01,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:01,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:01,620 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:01,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:01,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:01,620 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) [2022-03-15 15:24:01,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:01,882 INFO L93 Difference]: Finished difference Result 1512 states and 4214 transitions. [2022-03-15 15:24:01,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:01,882 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:01,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:01,884 INFO L225 Difference]: With dead ends: 1512 [2022-03-15 15:24:01,884 INFO L226 Difference]: Without dead ends: 1424 [2022-03-15 15:24:01,884 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 [2022-03-15 15:24:01,884 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 15:24:01,884 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 264 Invalid, 725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 715 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 15:24:01,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1424 states. [2022-03-15 15:24:01,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1424 to 1371. [2022-03-15 15:24:01,895 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) [2022-03-15 15:24:01,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1371 states to 1371 states and 3847 transitions. [2022-03-15 15:24:01,897 INFO L78 Accepts]: Start accepts. Automaton has 1371 states and 3847 transitions. Word has length 26 [2022-03-15 15:24:01,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:01,897 INFO L470 AbstractCegarLoop]: Abstraction has 1371 states and 3847 transitions. [2022-03-15 15:24:01,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:01,897 INFO L276 IsEmpty]: Start isEmpty. Operand 1371 states and 3847 transitions. [2022-03-15 15:24:01,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:01,899 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:01,899 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:01,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206 [2022-03-15 15:24:01,899 INFO L402 AbstractCegarLoop]: === Iteration 208 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:01,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:01,899 INFO L85 PathProgramCache]: Analyzing trace with hash 671157071, now seen corresponding path program 206 times [2022-03-15 15:24:01,899 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:01,899 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013928191] [2022-03-15 15:24:01,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:01,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:01,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:01,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:01,969 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:01,969 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013928191] [2022-03-15 15:24:01,969 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013928191] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:01,969 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:01,969 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:01,969 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146848342] [2022-03-15 15:24:01,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:01,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:01,969 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:01,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:01,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:01,969 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) [2022-03-15 15:24:02,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:02,206 INFO L93 Difference]: Finished difference Result 1563 states and 4321 transitions. [2022-03-15 15:24:02,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:02,206 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:02,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:02,208 INFO L225 Difference]: With dead ends: 1563 [2022-03-15 15:24:02,208 INFO L226 Difference]: Without dead ends: 1477 [2022-03-15 15:24:02,208 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:02,208 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 [2022-03-15 15:24:02,209 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] [2022-03-15 15:24:02,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1477 states. [2022-03-15 15:24:02,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1477 to 1369. [2022-03-15 15:24:02,220 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) [2022-03-15 15:24:02,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1369 states to 1369 states and 3839 transitions. [2022-03-15 15:24:02,222 INFO L78 Accepts]: Start accepts. Automaton has 1369 states and 3839 transitions. Word has length 26 [2022-03-15 15:24:02,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:02,222 INFO L470 AbstractCegarLoop]: Abstraction has 1369 states and 3839 transitions. [2022-03-15 15:24:02,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:02,222 INFO L276 IsEmpty]: Start isEmpty. Operand 1369 states and 3839 transitions. [2022-03-15 15:24:02,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:02,224 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:02,224 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:02,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207 [2022-03-15 15:24:02,224 INFO L402 AbstractCegarLoop]: === Iteration 209 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:02,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:02,224 INFO L85 PathProgramCache]: Analyzing trace with hash -808924209, now seen corresponding path program 207 times [2022-03-15 15:24:02,224 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:02,224 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819222906] [2022-03-15 15:24:02,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:02,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:02,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:02,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:02,294 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:02,294 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819222906] [2022-03-15 15:24:02,294 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819222906] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:02,294 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:02,294 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:02,295 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570027483] [2022-03-15 15:24:02,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:02,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:02,295 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:02,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:02,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:02,295 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) [2022-03-15 15:24:02,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:02,552 INFO L93 Difference]: Finished difference Result 1575 states and 4380 transitions. [2022-03-15 15:24:02,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:02,553 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:02,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:02,555 INFO L225 Difference]: With dead ends: 1575 [2022-03-15 15:24:02,555 INFO L226 Difference]: Without dead ends: 1464 [2022-03-15 15:24:02,555 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:02,555 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 [2022-03-15 15:24:02,555 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] [2022-03-15 15:24:02,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1464 states. [2022-03-15 15:24:02,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1464 to 1349. [2022-03-15 15:24:02,566 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) [2022-03-15 15:24:02,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1349 states to 1349 states and 3784 transitions. [2022-03-15 15:24:02,568 INFO L78 Accepts]: Start accepts. Automaton has 1349 states and 3784 transitions. Word has length 26 [2022-03-15 15:24:02,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:02,568 INFO L470 AbstractCegarLoop]: Abstraction has 1349 states and 3784 transitions. [2022-03-15 15:24:02,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:02,568 INFO L276 IsEmpty]: Start isEmpty. Operand 1349 states and 3784 transitions. [2022-03-15 15:24:02,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:02,570 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:02,570 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:02,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208 [2022-03-15 15:24:02,570 INFO L402 AbstractCegarLoop]: === Iteration 210 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:02,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:02,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1699875847, now seen corresponding path program 208 times [2022-03-15 15:24:02,570 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:02,570 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921910176] [2022-03-15 15:24:02,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:02,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:02,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:02,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:02,631 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:02,631 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921910176] [2022-03-15 15:24:02,631 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921910176] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:02,631 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:02,631 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:24:02,631 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345290111] [2022-03-15 15:24:02,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:02,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:24:02,632 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:02,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:24:02,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:24:02,632 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) [2022-03-15 15:24:02,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:02,824 INFO L93 Difference]: Finished difference Result 1533 states and 4263 transitions. [2022-03-15 15:24:02,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:24:02,824 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 [2022-03-15 15:24:02,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:02,826 INFO L225 Difference]: With dead ends: 1533 [2022-03-15 15:24:02,826 INFO L226 Difference]: Without dead ends: 1448 [2022-03-15 15:24:02,826 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 [2022-03-15 15:24:02,827 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 43 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:24:02,827 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] [2022-03-15 15:24:02,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1448 states. [2022-03-15 15:24:02,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1448 to 1355. [2022-03-15 15:24:02,838 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) [2022-03-15 15:24:02,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1355 states to 1355 states and 3794 transitions. [2022-03-15 15:24:02,840 INFO L78 Accepts]: Start accepts. Automaton has 1355 states and 3794 transitions. Word has length 26 [2022-03-15 15:24:02,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:02,840 INFO L470 AbstractCegarLoop]: Abstraction has 1355 states and 3794 transitions. [2022-03-15 15:24:02,840 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) [2022-03-15 15:24:02,840 INFO L276 IsEmpty]: Start isEmpty. Operand 1355 states and 3794 transitions. [2022-03-15 15:24:02,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:02,841 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:02,841 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:02,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209 [2022-03-15 15:24:02,842 INFO L402 AbstractCegarLoop]: === Iteration 211 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:02,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:02,842 INFO L85 PathProgramCache]: Analyzing trace with hash 658790523, now seen corresponding path program 209 times [2022-03-15 15:24:02,842 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:02,842 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377871136] [2022-03-15 15:24:02,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:02,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:02,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:02,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:02,904 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:02,904 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377871136] [2022-03-15 15:24:02,904 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377871136] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:02,904 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:02,904 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:24:02,904 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453103035] [2022-03-15 15:24:02,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:02,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:24:02,904 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:02,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:24:02,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:24:02,904 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) [2022-03-15 15:24:03,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:03,111 INFO L93 Difference]: Finished difference Result 1554 states and 4325 transitions. [2022-03-15 15:24:03,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:24:03,112 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 [2022-03-15 15:24:03,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:03,114 INFO L225 Difference]: With dead ends: 1554 [2022-03-15 15:24:03,114 INFO L226 Difference]: Without dead ends: 1459 [2022-03-15 15:24:03,114 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 [2022-03-15 15:24:03,114 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 48 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 572 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:24:03,114 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] [2022-03-15 15:24:03,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1459 states. [2022-03-15 15:24:03,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1459 to 1367. [2022-03-15 15:24:03,127 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) [2022-03-15 15:24:03,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1367 states to 1367 states and 3823 transitions. [2022-03-15 15:24:03,140 INFO L78 Accepts]: Start accepts. Automaton has 1367 states and 3823 transitions. Word has length 26 [2022-03-15 15:24:03,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:03,140 INFO L470 AbstractCegarLoop]: Abstraction has 1367 states and 3823 transitions. [2022-03-15 15:24:03,140 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) [2022-03-15 15:24:03,140 INFO L276 IsEmpty]: Start isEmpty. Operand 1367 states and 3823 transitions. [2022-03-15 15:24:03,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:03,142 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:03,142 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:03,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210 [2022-03-15 15:24:03,142 INFO L402 AbstractCegarLoop]: === Iteration 212 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:03,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:03,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1026162907, now seen corresponding path program 210 times [2022-03-15 15:24:03,142 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:03,142 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017723891] [2022-03-15 15:24:03,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:03,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:03,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:03,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:03,223 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:03,223 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017723891] [2022-03-15 15:24:03,223 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017723891] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:03,223 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:03,223 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:03,223 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152518928] [2022-03-15 15:24:03,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:03,223 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:03,223 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:03,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:03,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:03,224 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) [2022-03-15 15:24:03,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:03,470 INFO L93 Difference]: Finished difference Result 1615 states and 4457 transitions. [2022-03-15 15:24:03,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:03,470 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 [2022-03-15 15:24:03,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:03,472 INFO L225 Difference]: With dead ends: 1615 [2022-03-15 15:24:03,472 INFO L226 Difference]: Without dead ends: 1530 [2022-03-15 15:24:03,472 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 [2022-03-15 15:24:03,473 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 [2022-03-15 15:24:03,473 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] [2022-03-15 15:24:03,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1530 states. [2022-03-15 15:24:03,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1530 to 1391. [2022-03-15 15:24:03,484 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) [2022-03-15 15:24:03,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1391 states to 1391 states and 3889 transitions. [2022-03-15 15:24:03,486 INFO L78 Accepts]: Start accepts. Automaton has 1391 states and 3889 transitions. Word has length 26 [2022-03-15 15:24:03,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:03,486 INFO L470 AbstractCegarLoop]: Abstraction has 1391 states and 3889 transitions. [2022-03-15 15:24:03,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:03,487 INFO L276 IsEmpty]: Start isEmpty. Operand 1391 states and 3889 transitions. [2022-03-15 15:24:03,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:03,488 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:03,488 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:03,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211 [2022-03-15 15:24:03,488 INFO L402 AbstractCegarLoop]: === Iteration 213 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:03,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:03,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1289121183, now seen corresponding path program 211 times [2022-03-15 15:24:03,488 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:03,489 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125342051] [2022-03-15 15:24:03,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:03,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:03,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:03,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:03,558 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:03,558 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125342051] [2022-03-15 15:24:03,558 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125342051] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:03,558 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:03,558 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:03,558 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612610852] [2022-03-15 15:24:03,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:03,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:03,558 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:03,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:03,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:03,559 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) [2022-03-15 15:24:03,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:03,793 INFO L93 Difference]: Finished difference Result 1549 states and 4282 transitions. [2022-03-15 15:24:03,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:03,793 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:03,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:03,795 INFO L225 Difference]: With dead ends: 1549 [2022-03-15 15:24:03,795 INFO L226 Difference]: Without dead ends: 1466 [2022-03-15 15:24:03,796 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:03,796 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 [2022-03-15 15:24:03,796 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] [2022-03-15 15:24:03,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1466 states. [2022-03-15 15:24:03,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1466 to 1397. [2022-03-15 15:24:03,807 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) [2022-03-15 15:24:03,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1397 states to 1397 states and 3897 transitions. [2022-03-15 15:24:03,809 INFO L78 Accepts]: Start accepts. Automaton has 1397 states and 3897 transitions. Word has length 26 [2022-03-15 15:24:03,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:03,809 INFO L470 AbstractCegarLoop]: Abstraction has 1397 states and 3897 transitions. [2022-03-15 15:24:03,809 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:03,809 INFO L276 IsEmpty]: Start isEmpty. Operand 1397 states and 3897 transitions. [2022-03-15 15:24:03,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:03,811 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:03,811 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:03,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212 [2022-03-15 15:24:03,811 INFO L402 AbstractCegarLoop]: === Iteration 214 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:03,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:03,811 INFO L85 PathProgramCache]: Analyzing trace with hash -643700381, now seen corresponding path program 212 times [2022-03-15 15:24:03,811 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:03,811 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764544360] [2022-03-15 15:24:03,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:03,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:03,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:03,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:03,880 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:03,880 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764544360] [2022-03-15 15:24:03,880 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764544360] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:03,880 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:03,880 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:03,880 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526630895] [2022-03-15 15:24:03,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:03,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:03,881 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:03,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:03,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:03,881 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) [2022-03-15 15:24:04,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:04,136 INFO L93 Difference]: Finished difference Result 1624 states and 4492 transitions. [2022-03-15 15:24:04,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:04,136 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 [2022-03-15 15:24:04,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:04,138 INFO L225 Difference]: With dead ends: 1624 [2022-03-15 15:24:04,139 INFO L226 Difference]: Without dead ends: 1536 [2022-03-15 15:24:04,139 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:04,139 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 [2022-03-15 15:24:04,139 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] [2022-03-15 15:24:04,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1536 states. [2022-03-15 15:24:04,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1536 to 1423. [2022-03-15 15:24:04,151 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) [2022-03-15 15:24:04,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1423 states to 1423 states and 3973 transitions. [2022-03-15 15:24:04,152 INFO L78 Accepts]: Start accepts. Automaton has 1423 states and 3973 transitions. Word has length 26 [2022-03-15 15:24:04,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:04,153 INFO L470 AbstractCegarLoop]: Abstraction has 1423 states and 3973 transitions. [2022-03-15 15:24:04,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:04,153 INFO L276 IsEmpty]: Start isEmpty. Operand 1423 states and 3973 transitions. [2022-03-15 15:24:04,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:04,154 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:04,154 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:04,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable213 [2022-03-15 15:24:04,154 INFO L402 AbstractCegarLoop]: === Iteration 215 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:04,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:04,154 INFO L85 PathProgramCache]: Analyzing trace with hash -555763647, now seen corresponding path program 213 times [2022-03-15 15:24:04,155 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:04,155 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868267827] [2022-03-15 15:24:04,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:04,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:04,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:04,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:04,225 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:04,225 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868267827] [2022-03-15 15:24:04,225 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868267827] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:04,225 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:04,225 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:04,225 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154195647] [2022-03-15 15:24:04,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:04,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:04,225 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:04,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:04,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:04,226 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) [2022-03-15 15:24:04,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:04,467 INFO L93 Difference]: Finished difference Result 1572 states and 4345 transitions. [2022-03-15 15:24:04,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:04,467 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 [2022-03-15 15:24:04,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:04,469 INFO L225 Difference]: With dead ends: 1572 [2022-03-15 15:24:04,469 INFO L226 Difference]: Without dead ends: 1484 [2022-03-15 15:24:04,469 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:04,469 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 [2022-03-15 15:24:04,469 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] [2022-03-15 15:24:04,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1484 states. [2022-03-15 15:24:04,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1484 to 1415. [2022-03-15 15:24:04,480 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) [2022-03-15 15:24:04,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1415 states to 1415 states and 3958 transitions. [2022-03-15 15:24:04,482 INFO L78 Accepts]: Start accepts. Automaton has 1415 states and 3958 transitions. Word has length 26 [2022-03-15 15:24:04,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:04,483 INFO L470 AbstractCegarLoop]: Abstraction has 1415 states and 3958 transitions. [2022-03-15 15:24:04,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:04,483 INFO L276 IsEmpty]: Start isEmpty. Operand 1415 states and 3958 transitions. [2022-03-15 15:24:04,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:04,484 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:04,484 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:04,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214 [2022-03-15 15:24:04,484 INFO L402 AbstractCegarLoop]: === Iteration 216 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:04,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:04,484 INFO L85 PathProgramCache]: Analyzing trace with hash -248885385, now seen corresponding path program 214 times [2022-03-15 15:24:04,485 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:04,485 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733800871] [2022-03-15 15:24:04,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:04,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:04,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:04,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:04,567 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:04,567 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733800871] [2022-03-15 15:24:04,567 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733800871] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:04,567 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:04,567 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:04,567 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974370036] [2022-03-15 15:24:04,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:04,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:04,567 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:04,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:04,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:04,567 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) [2022-03-15 15:24:04,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:04,812 INFO L93 Difference]: Finished difference Result 1653 states and 4558 transitions. [2022-03-15 15:24:04,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:04,812 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 [2022-03-15 15:24:04,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:04,814 INFO L225 Difference]: With dead ends: 1653 [2022-03-15 15:24:04,814 INFO L226 Difference]: Without dead ends: 1514 [2022-03-15 15:24:04,814 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 [2022-03-15 15:24:04,814 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 [2022-03-15 15:24:04,814 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] [2022-03-15 15:24:04,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1514 states. [2022-03-15 15:24:04,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1514 to 1381. [2022-03-15 15:24:04,826 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) [2022-03-15 15:24:04,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1381 states to 1381 states and 3860 transitions. [2022-03-15 15:24:04,828 INFO L78 Accepts]: Start accepts. Automaton has 1381 states and 3860 transitions. Word has length 26 [2022-03-15 15:24:04,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:04,828 INFO L470 AbstractCegarLoop]: Abstraction has 1381 states and 3860 transitions. [2022-03-15 15:24:04,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:04,828 INFO L276 IsEmpty]: Start isEmpty. Operand 1381 states and 3860 transitions. [2022-03-15 15:24:04,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:04,829 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:04,829 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:04,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215 [2022-03-15 15:24:04,830 INFO L402 AbstractCegarLoop]: === Iteration 217 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:04,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:04,830 INFO L85 PathProgramCache]: Analyzing trace with hash -401326129, now seen corresponding path program 215 times [2022-03-15 15:24:04,830 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:04,830 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021848059] [2022-03-15 15:24:04,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:04,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:04,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:04,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:04,897 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:04,897 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021848059] [2022-03-15 15:24:04,897 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021848059] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:04,897 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:04,897 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:04,897 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640926470] [2022-03-15 15:24:04,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:04,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:04,898 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:04,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:04,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:04,898 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) [2022-03-15 15:24:05,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:05,157 INFO L93 Difference]: Finished difference Result 1627 states and 4481 transitions. [2022-03-15 15:24:05,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:05,158 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:05,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:05,160 INFO L225 Difference]: With dead ends: 1627 [2022-03-15 15:24:05,160 INFO L226 Difference]: Without dead ends: 1465 [2022-03-15 15:24:05,160 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:05,161 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 [2022-03-15 15:24:05,161 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] [2022-03-15 15:24:05,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1465 states. [2022-03-15 15:24:05,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1465 to 1360. [2022-03-15 15:24:05,172 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) [2022-03-15 15:24:05,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1360 states to 1360 states and 3804 transitions. [2022-03-15 15:24:05,174 INFO L78 Accepts]: Start accepts. Automaton has 1360 states and 3804 transitions. Word has length 26 [2022-03-15 15:24:05,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:05,174 INFO L470 AbstractCegarLoop]: Abstraction has 1360 states and 3804 transitions. [2022-03-15 15:24:05,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:05,174 INFO L276 IsEmpty]: Start isEmpty. Operand 1360 states and 3804 transitions. [2022-03-15 15:24:05,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:05,176 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:05,176 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:05,176 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216 [2022-03-15 15:24:05,176 INFO L402 AbstractCegarLoop]: === Iteration 218 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:05,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:05,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1113653143, now seen corresponding path program 216 times [2022-03-15 15:24:05,176 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:05,176 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78239345] [2022-03-15 15:24:05,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:05,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:05,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:05,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:05,246 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:05,246 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78239345] [2022-03-15 15:24:05,246 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78239345] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:05,246 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:05,246 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:05,246 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608086130] [2022-03-15 15:24:05,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:05,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:05,246 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:05,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:05,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:05,246 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) [2022-03-15 15:24:05,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:05,478 INFO L93 Difference]: Finished difference Result 1494 states and 4137 transitions. [2022-03-15 15:24:05,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:05,478 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:05,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:05,480 INFO L225 Difference]: With dead ends: 1494 [2022-03-15 15:24:05,480 INFO L226 Difference]: Without dead ends: 1409 [2022-03-15 15:24:05,480 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:05,480 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 [2022-03-15 15:24:05,480 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] [2022-03-15 15:24:05,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1409 states. [2022-03-15 15:24:05,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1409 to 1353. [2022-03-15 15:24:05,491 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) [2022-03-15 15:24:05,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1353 states to 1353 states and 3778 transitions. [2022-03-15 15:24:05,493 INFO L78 Accepts]: Start accepts. Automaton has 1353 states and 3778 transitions. Word has length 26 [2022-03-15 15:24:05,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:05,493 INFO L470 AbstractCegarLoop]: Abstraction has 1353 states and 3778 transitions. [2022-03-15 15:24:05,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:05,494 INFO L276 IsEmpty]: Start isEmpty. Operand 1353 states and 3778 transitions. [2022-03-15 15:24:05,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:05,495 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:05,495 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] [2022-03-15 15:24:05,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217 [2022-03-15 15:24:05,495 INFO L402 AbstractCegarLoop]: === Iteration 219 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:05,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:05,495 INFO L85 PathProgramCache]: Analyzing trace with hash -822647783, now seen corresponding path program 217 times [2022-03-15 15:24:05,495 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:05,495 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309270985] [2022-03-15 15:24:05,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:05,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:05,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:05,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:05,566 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:05,566 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309270985] [2022-03-15 15:24:05,566 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309270985] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:05,566 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:05,566 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:05,566 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475739948] [2022-03-15 15:24:05,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:05,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:05,567 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:05,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:05,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:05,567 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) [2022-03-15 15:24:05,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:05,817 INFO L93 Difference]: Finished difference Result 1511 states and 4172 transitions. [2022-03-15 15:24:05,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:05,817 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:05,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:05,819 INFO L225 Difference]: With dead ends: 1511 [2022-03-15 15:24:05,819 INFO L226 Difference]: Without dead ends: 1416 [2022-03-15 15:24:05,819 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 [2022-03-15 15:24:05,819 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 [2022-03-15 15:24:05,819 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] [2022-03-15 15:24:05,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1416 states. [2022-03-15 15:24:05,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1416 to 1354. [2022-03-15 15:24:05,830 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) [2022-03-15 15:24:05,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1354 states to 1354 states and 3779 transitions. [2022-03-15 15:24:05,832 INFO L78 Accepts]: Start accepts. Automaton has 1354 states and 3779 transitions. Word has length 26 [2022-03-15 15:24:05,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:05,832 INFO L470 AbstractCegarLoop]: Abstraction has 1354 states and 3779 transitions. [2022-03-15 15:24:05,832 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) [2022-03-15 15:24:05,832 INFO L276 IsEmpty]: Start isEmpty. Operand 1354 states and 3779 transitions. [2022-03-15 15:24:05,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:05,834 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:05,834 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:05,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218 [2022-03-15 15:24:05,834 INFO L402 AbstractCegarLoop]: === Iteration 220 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:05,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:05,834 INFO L85 PathProgramCache]: Analyzing trace with hash -455275399, now seen corresponding path program 218 times [2022-03-15 15:24:05,834 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:05,834 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276287897] [2022-03-15 15:24:05,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:05,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:05,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:05,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:05,905 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:05,905 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276287897] [2022-03-15 15:24:05,905 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276287897] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:05,905 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:05,905 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:05,905 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695731520] [2022-03-15 15:24:05,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:05,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:05,906 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:05,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:05,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:05,906 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) [2022-03-15 15:24:06,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:06,141 INFO L93 Difference]: Finished difference Result 1525 states and 4210 transitions. [2022-03-15 15:24:06,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:06,141 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:06,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:06,144 INFO L225 Difference]: With dead ends: 1525 [2022-03-15 15:24:06,144 INFO L226 Difference]: Without dead ends: 1440 [2022-03-15 15:24:06,144 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 [2022-03-15 15:24:06,144 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 [2022-03-15 15:24:06,144 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] [2022-03-15 15:24:06,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1440 states. [2022-03-15 15:24:06,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1440 to 1356. [2022-03-15 15:24:06,155 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) [2022-03-15 15:24:06,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1356 states to 1356 states and 3787 transitions. [2022-03-15 15:24:06,157 INFO L78 Accepts]: Start accepts. Automaton has 1356 states and 3787 transitions. Word has length 26 [2022-03-15 15:24:06,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:06,157 INFO L470 AbstractCegarLoop]: Abstraction has 1356 states and 3787 transitions. [2022-03-15 15:24:06,157 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) [2022-03-15 15:24:06,157 INFO L276 IsEmpty]: Start isEmpty. Operand 1356 states and 3787 transitions. [2022-03-15 15:24:06,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:06,159 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:06,159 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] [2022-03-15 15:24:06,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219 [2022-03-15 15:24:06,159 INFO L402 AbstractCegarLoop]: === Iteration 221 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:06,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:06,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1524407807, now seen corresponding path program 219 times [2022-03-15 15:24:06,159 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:06,159 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720444446] [2022-03-15 15:24:06,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:06,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:06,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:06,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:06,243 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:06,243 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720444446] [2022-03-15 15:24:06,243 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720444446] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:06,243 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:06,243 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:06,243 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575600133] [2022-03-15 15:24:06,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:06,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:06,243 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:06,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:06,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:06,244 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) [2022-03-15 15:24:06,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:06,474 INFO L93 Difference]: Finished difference Result 1497 states and 4138 transitions. [2022-03-15 15:24:06,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:06,474 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:06,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:06,476 INFO L225 Difference]: With dead ends: 1497 [2022-03-15 15:24:06,476 INFO L226 Difference]: Without dead ends: 1414 [2022-03-15 15:24:06,476 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:06,476 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 [2022-03-15 15:24:06,477 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] [2022-03-15 15:24:06,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1414 states. [2022-03-15 15:24:06,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1414 to 1357. [2022-03-15 15:24:06,488 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) [2022-03-15 15:24:06,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1357 states to 1357 states and 3789 transitions. [2022-03-15 15:24:06,490 INFO L78 Accepts]: Start accepts. Automaton has 1357 states and 3789 transitions. Word has length 26 [2022-03-15 15:24:06,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:06,490 INFO L470 AbstractCegarLoop]: Abstraction has 1357 states and 3789 transitions. [2022-03-15 15:24:06,490 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) [2022-03-15 15:24:06,490 INFO L276 IsEmpty]: Start isEmpty. Operand 1357 states and 3789 transitions. [2022-03-15 15:24:06,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:06,491 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:06,491 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] [2022-03-15 15:24:06,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220 [2022-03-15 15:24:06,491 INFO L402 AbstractCegarLoop]: === Iteration 222 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:06,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:06,491 INFO L85 PathProgramCache]: Analyzing trace with hash -2125138687, now seen corresponding path program 220 times [2022-03-15 15:24:06,492 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:06,492 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639306135] [2022-03-15 15:24:06,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:06,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:06,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:06,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:06,577 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:06,577 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639306135] [2022-03-15 15:24:06,577 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639306135] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:06,577 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:06,577 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:06,577 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398549177] [2022-03-15 15:24:06,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:06,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:06,578 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:06,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:06,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:06,578 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) [2022-03-15 15:24:06,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:06,867 INFO L93 Difference]: Finished difference Result 1489 states and 4130 transitions. [2022-03-15 15:24:06,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:06,868 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 [2022-03-15 15:24:06,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:06,870 INFO L225 Difference]: With dead ends: 1489 [2022-03-15 15:24:06,870 INFO L226 Difference]: Without dead ends: 1401 [2022-03-15 15:24:06,870 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 [2022-03-15 15:24:06,870 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 15:24:06,870 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 228 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 688 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 15:24:06,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1401 states. [2022-03-15 15:24:06,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1401 to 1361. [2022-03-15 15:24:06,881 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) [2022-03-15 15:24:06,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1361 states to 1361 states and 3801 transitions. [2022-03-15 15:24:06,883 INFO L78 Accepts]: Start accepts. Automaton has 1361 states and 3801 transitions. Word has length 26 [2022-03-15 15:24:06,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:06,883 INFO L470 AbstractCegarLoop]: Abstraction has 1361 states and 3801 transitions. [2022-03-15 15:24:06,883 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:06,883 INFO L276 IsEmpty]: Start isEmpty. Operand 1361 states and 3801 transitions. [2022-03-15 15:24:06,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:06,885 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:06,885 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] [2022-03-15 15:24:06,885 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable221 [2022-03-15 15:24:06,885 INFO L402 AbstractCegarLoop]: === Iteration 223 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:06,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:06,885 INFO L85 PathProgramCache]: Analyzing trace with hash -2037201953, now seen corresponding path program 221 times [2022-03-15 15:24:06,885 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:06,885 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138593451] [2022-03-15 15:24:06,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:06,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:06,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:06,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:06,955 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:06,956 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138593451] [2022-03-15 15:24:06,956 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138593451] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:06,956 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:06,956 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:06,956 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538092887] [2022-03-15 15:24:06,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:06,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:06,956 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:06,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:06,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:06,956 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) [2022-03-15 15:24:07,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:07,191 INFO L93 Difference]: Finished difference Result 1502 states and 4148 transitions. [2022-03-15 15:24:07,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:07,191 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:07,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:07,193 INFO L225 Difference]: With dead ends: 1502 [2022-03-15 15:24:07,193 INFO L226 Difference]: Without dead ends: 1414 [2022-03-15 15:24:07,193 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:07,193 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 [2022-03-15 15:24:07,194 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] [2022-03-15 15:24:07,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1414 states. [2022-03-15 15:24:07,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1414 to 1360. [2022-03-15 15:24:07,205 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) [2022-03-15 15:24:07,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1360 states to 1360 states and 3801 transitions. [2022-03-15 15:24:07,207 INFO L78 Accepts]: Start accepts. Automaton has 1360 states and 3801 transitions. Word has length 26 [2022-03-15 15:24:07,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:07,207 INFO L470 AbstractCegarLoop]: Abstraction has 1360 states and 3801 transitions. [2022-03-15 15:24:07,207 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:07,207 INFO L276 IsEmpty]: Start isEmpty. Operand 1360 states and 3801 transitions. [2022-03-15 15:24:07,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:07,208 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:07,208 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:07,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable222 [2022-03-15 15:24:07,208 INFO L402 AbstractCegarLoop]: === Iteration 224 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:07,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:07,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1057142747, now seen corresponding path program 222 times [2022-03-15 15:24:07,209 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:07,209 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318356328] [2022-03-15 15:24:07,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:07,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:07,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:07,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:07,279 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:07,279 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318356328] [2022-03-15 15:24:07,279 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318356328] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:07,279 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:07,279 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:07,279 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038049627] [2022-03-15 15:24:07,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:07,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:07,279 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:07,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:07,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:07,280 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) [2022-03-15 15:24:07,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:07,517 INFO L93 Difference]: Finished difference Result 1528 states and 4222 transitions. [2022-03-15 15:24:07,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:07,517 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:07,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:07,519 INFO L225 Difference]: With dead ends: 1528 [2022-03-15 15:24:07,519 INFO L226 Difference]: Without dead ends: 1443 [2022-03-15 15:24:07,519 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:07,519 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 [2022-03-15 15:24:07,519 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] [2022-03-15 15:24:07,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1443 states. [2022-03-15 15:24:07,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1443 to 1358. [2022-03-15 15:24:07,531 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) [2022-03-15 15:24:07,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1358 states to 1358 states and 3793 transitions. [2022-03-15 15:24:07,533 INFO L78 Accepts]: Start accepts. Automaton has 1358 states and 3793 transitions. Word has length 26 [2022-03-15 15:24:07,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:07,533 INFO L470 AbstractCegarLoop]: Abstraction has 1358 states and 3793 transitions. [2022-03-15 15:24:07,533 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) [2022-03-15 15:24:07,533 INFO L276 IsEmpty]: Start isEmpty. Operand 1358 states and 3793 transitions. [2022-03-15 15:24:07,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:07,535 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:07,535 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:07,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable223 [2022-03-15 15:24:07,535 INFO L402 AbstractCegarLoop]: === Iteration 225 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:07,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:07,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1258141343, now seen corresponding path program 223 times [2022-03-15 15:24:07,535 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:07,535 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22991257] [2022-03-15 15:24:07,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:07,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:07,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:07,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:07,620 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:07,621 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22991257] [2022-03-15 15:24:07,621 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22991257] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:07,621 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:07,621 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:07,621 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320091327] [2022-03-15 15:24:07,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:07,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:07,621 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:07,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:07,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:07,621 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) [2022-03-15 15:24:07,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:07,856 INFO L93 Difference]: Finished difference Result 1519 states and 4205 transitions. [2022-03-15 15:24:07,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:07,857 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:07,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:07,859 INFO L225 Difference]: With dead ends: 1519 [2022-03-15 15:24:07,859 INFO L226 Difference]: Without dead ends: 1436 [2022-03-15 15:24:07,859 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:07,859 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 [2022-03-15 15:24:07,859 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] [2022-03-15 15:24:07,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1436 states. [2022-03-15 15:24:07,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1436 to 1359. [2022-03-15 15:24:07,870 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) [2022-03-15 15:24:07,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1359 states to 1359 states and 3792 transitions. [2022-03-15 15:24:07,872 INFO L78 Accepts]: Start accepts. Automaton has 1359 states and 3792 transitions. Word has length 26 [2022-03-15 15:24:07,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:07,872 INFO L470 AbstractCegarLoop]: Abstraction has 1359 states and 3792 transitions. [2022-03-15 15:24:07,872 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:07,872 INFO L276 IsEmpty]: Start isEmpty. Operand 1359 states and 3792 transitions. [2022-03-15 15:24:07,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:07,874 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:07,874 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:07,874 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable224 [2022-03-15 15:24:07,874 INFO L402 AbstractCegarLoop]: === Iteration 226 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:07,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:07,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1787758817, now seen corresponding path program 224 times [2022-03-15 15:24:07,874 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:07,874 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594969532] [2022-03-15 15:24:07,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:07,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:07,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:07,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:07,944 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:07,944 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594969532] [2022-03-15 15:24:07,944 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594969532] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:07,944 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:07,944 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:07,944 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253948217] [2022-03-15 15:24:07,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:07,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:07,945 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:07,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:07,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:07,945 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) [2022-03-15 15:24:08,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:08,173 INFO L93 Difference]: Finished difference Result 1503 states and 4164 transitions. [2022-03-15 15:24:08,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:08,174 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:08,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:08,175 INFO L225 Difference]: With dead ends: 1503 [2022-03-15 15:24:08,175 INFO L226 Difference]: Without dead ends: 1416 [2022-03-15 15:24:08,176 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:08,176 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 [2022-03-15 15:24:08,176 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] [2022-03-15 15:24:08,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1416 states. [2022-03-15 15:24:08,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1416 to 1358. [2022-03-15 15:24:08,187 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) [2022-03-15 15:24:08,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1358 states to 1358 states and 3792 transitions. [2022-03-15 15:24:08,189 INFO L78 Accepts]: Start accepts. Automaton has 1358 states and 3792 transitions. Word has length 26 [2022-03-15 15:24:08,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:08,189 INFO L470 AbstractCegarLoop]: Abstraction has 1358 states and 3792 transitions. [2022-03-15 15:24:08,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:08,189 INFO L276 IsEmpty]: Start isEmpty. Operand 1358 states and 3792 transitions. [2022-03-15 15:24:08,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:08,190 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:08,190 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:08,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable225 [2022-03-15 15:24:08,190 INFO L402 AbstractCegarLoop]: === Iteration 227 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:08,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:08,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1106505571, now seen corresponding path program 225 times [2022-03-15 15:24:08,191 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:08,191 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614044511] [2022-03-15 15:24:08,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:08,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:08,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:08,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:08,284 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:08,284 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614044511] [2022-03-15 15:24:08,284 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614044511] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:08,284 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:08,284 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:08,284 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892650681] [2022-03-15 15:24:08,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:08,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:08,284 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:08,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:08,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:08,285 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) [2022-03-15 15:24:08,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:08,531 INFO L93 Difference]: Finished difference Result 1491 states and 4141 transitions. [2022-03-15 15:24:08,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:08,531 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 [2022-03-15 15:24:08,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:08,534 INFO L225 Difference]: With dead ends: 1491 [2022-03-15 15:24:08,534 INFO L226 Difference]: Without dead ends: 1403 [2022-03-15 15:24:08,534 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 [2022-03-15 15:24:08,534 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 [2022-03-15 15:24:08,534 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] [2022-03-15 15:24:08,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1403 states. [2022-03-15 15:24:08,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1403 to 1360. [2022-03-15 15:24:08,545 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) [2022-03-15 15:24:08,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1360 states to 1360 states and 3799 transitions. [2022-03-15 15:24:08,547 INFO L78 Accepts]: Start accepts. Automaton has 1360 states and 3799 transitions. Word has length 26 [2022-03-15 15:24:08,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:08,547 INFO L470 AbstractCegarLoop]: Abstraction has 1360 states and 3799 transitions. [2022-03-15 15:24:08,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:08,547 INFO L276 IsEmpty]: Start isEmpty. Operand 1360 states and 3799 transitions. [2022-03-15 15:24:08,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:08,549 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:08,549 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:08,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226 [2022-03-15 15:24:08,549 INFO L402 AbstractCegarLoop]: === Iteration 228 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:08,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:08,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1194442305, now seen corresponding path program 226 times [2022-03-15 15:24:08,549 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:08,549 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678126378] [2022-03-15 15:24:08,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:08,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:08,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:08,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:08,638 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:08,638 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678126378] [2022-03-15 15:24:08,638 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678126378] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:08,638 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:08,638 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:08,638 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457390627] [2022-03-15 15:24:08,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:08,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:08,638 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:08,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:08,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:08,638 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) [2022-03-15 15:24:08,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:08,877 INFO L93 Difference]: Finished difference Result 1499 states and 4143 transitions. [2022-03-15 15:24:08,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:08,877 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:08,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:08,879 INFO L225 Difference]: With dead ends: 1499 [2022-03-15 15:24:08,879 INFO L226 Difference]: Without dead ends: 1413 [2022-03-15 15:24:08,880 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 [2022-03-15 15:24:08,880 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 [2022-03-15 15:24:08,880 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] [2022-03-15 15:24:08,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1413 states. [2022-03-15 15:24:08,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1413 to 1359. [2022-03-15 15:24:08,901 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) [2022-03-15 15:24:08,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1359 states to 1359 states and 3792 transitions. [2022-03-15 15:24:08,902 INFO L78 Accepts]: Start accepts. Automaton has 1359 states and 3792 transitions. Word has length 26 [2022-03-15 15:24:08,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:08,903 INFO L470 AbstractCegarLoop]: Abstraction has 1359 states and 3792 transitions. [2022-03-15 15:24:08,903 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:08,903 INFO L276 IsEmpty]: Start isEmpty. Operand 1359 states and 3792 transitions. [2022-03-15 15:24:08,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:08,904 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:08,904 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:08,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable227 [2022-03-15 15:24:08,904 INFO L402 AbstractCegarLoop]: === Iteration 229 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:08,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:08,905 INFO L85 PathProgramCache]: Analyzing trace with hash -285638975, now seen corresponding path program 227 times [2022-03-15 15:24:08,905 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:08,905 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30529554] [2022-03-15 15:24:08,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:08,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:08,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:08,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:08,980 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:08,980 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30529554] [2022-03-15 15:24:08,980 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30529554] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:08,980 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:08,980 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:08,980 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134781570] [2022-03-15 15:24:08,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:08,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:08,980 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:08,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:08,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:08,980 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) [2022-03-15 15:24:09,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:09,238 INFO L93 Difference]: Finished difference Result 1555 states and 4298 transitions. [2022-03-15 15:24:09,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:09,238 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:09,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:09,240 INFO L225 Difference]: With dead ends: 1555 [2022-03-15 15:24:09,240 INFO L226 Difference]: Without dead ends: 1458 [2022-03-15 15:24:09,240 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:09,241 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 [2022-03-15 15:24:09,241 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] [2022-03-15 15:24:09,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1458 states. [2022-03-15 15:24:09,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1458 to 1352. [2022-03-15 15:24:09,254 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) [2022-03-15 15:24:09,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1352 states to 1352 states and 3769 transitions. [2022-03-15 15:24:09,256 INFO L78 Accepts]: Start accepts. Automaton has 1352 states and 3769 transitions. Word has length 26 [2022-03-15 15:24:09,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:09,256 INFO L470 AbstractCegarLoop]: Abstraction has 1352 states and 3769 transitions. [2022-03-15 15:24:09,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:09,256 INFO L276 IsEmpty]: Start isEmpty. Operand 1352 states and 3769 transitions. [2022-03-15 15:24:09,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:09,258 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:09,258 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:09,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable228 [2022-03-15 15:24:09,258 INFO L402 AbstractCegarLoop]: === Iteration 230 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:09,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:09,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1104682655, now seen corresponding path program 228 times [2022-03-15 15:24:09,258 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:09,258 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102202559] [2022-03-15 15:24:09,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:09,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:09,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:09,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:09,332 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:09,332 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102202559] [2022-03-15 15:24:09,332 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102202559] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:09,332 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:09,332 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:09,333 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462562720] [2022-03-15 15:24:09,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:09,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:09,333 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:09,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:09,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:09,333 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) [2022-03-15 15:24:09,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:09,566 INFO L93 Difference]: Finished difference Result 1504 states and 4155 transitions. [2022-03-15 15:24:09,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:09,566 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:09,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:09,568 INFO L225 Difference]: With dead ends: 1504 [2022-03-15 15:24:09,568 INFO L226 Difference]: Without dead ends: 1415 [2022-03-15 15:24:09,568 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:09,568 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 [2022-03-15 15:24:09,568 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] [2022-03-15 15:24:09,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1415 states. [2022-03-15 15:24:09,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1415 to 1347. [2022-03-15 15:24:09,579 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) [2022-03-15 15:24:09,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1347 states to 1347 states and 3758 transitions. [2022-03-15 15:24:09,581 INFO L78 Accepts]: Start accepts. Automaton has 1347 states and 3758 transitions. Word has length 26 [2022-03-15 15:24:09,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:09,581 INFO L470 AbstractCegarLoop]: Abstraction has 1347 states and 3758 transitions. [2022-03-15 15:24:09,581 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) [2022-03-15 15:24:09,581 INFO L276 IsEmpty]: Start isEmpty. Operand 1347 states and 3758 transitions. [2022-03-15 15:24:09,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:09,583 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:09,583 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:09,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable229 [2022-03-15 15:24:09,583 INFO L402 AbstractCegarLoop]: === Iteration 231 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:09,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:09,583 INFO L85 PathProgramCache]: Analyzing trace with hash 907461327, now seen corresponding path program 229 times [2022-03-15 15:24:09,583 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:09,583 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405062893] [2022-03-15 15:24:09,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:09,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:09,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:09,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:09,644 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:09,644 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405062893] [2022-03-15 15:24:09,644 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405062893] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:09,644 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:09,644 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:24:09,644 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144394926] [2022-03-15 15:24:09,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:09,645 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:24:09,645 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:09,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:24:09,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:24:09,645 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) [2022-03-15 15:24:09,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:09,857 INFO L93 Difference]: Finished difference Result 1541 states and 4265 transitions. [2022-03-15 15:24:09,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:24:09,858 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 [2022-03-15 15:24:09,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:09,860 INFO L225 Difference]: With dead ends: 1541 [2022-03-15 15:24:09,860 INFO L226 Difference]: Without dead ends: 1453 [2022-03-15 15:24:09,860 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 [2022-03-15 15:24:09,860 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 52 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:24:09,860 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] [2022-03-15 15:24:09,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1453 states. [2022-03-15 15:24:09,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1453 to 1373. [2022-03-15 15:24:09,872 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) [2022-03-15 15:24:09,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1373 states to 1373 states and 3834 transitions. [2022-03-15 15:24:09,874 INFO L78 Accepts]: Start accepts. Automaton has 1373 states and 3834 transitions. Word has length 26 [2022-03-15 15:24:09,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:09,874 INFO L470 AbstractCegarLoop]: Abstraction has 1373 states and 3834 transitions. [2022-03-15 15:24:09,874 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) [2022-03-15 15:24:09,874 INFO L276 IsEmpty]: Start isEmpty. Operand 1373 states and 3834 transitions. [2022-03-15 15:24:09,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:09,875 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:09,875 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:09,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable230 [2022-03-15 15:24:09,875 INFO L402 AbstractCegarLoop]: === Iteration 232 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:09,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:09,876 INFO L85 PathProgramCache]: Analyzing trace with hash 995398061, now seen corresponding path program 230 times [2022-03-15 15:24:09,876 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:09,876 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701102690] [2022-03-15 15:24:09,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:09,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:09,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:09,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:09,956 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:09,956 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701102690] [2022-03-15 15:24:09,956 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701102690] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:09,956 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:09,956 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:09,956 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791636350] [2022-03-15 15:24:09,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:09,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:09,957 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:09,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:09,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:09,957 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) [2022-03-15 15:24:10,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:10,224 INFO L93 Difference]: Finished difference Result 1604 states and 4405 transitions. [2022-03-15 15:24:10,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:10,225 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:10,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:10,227 INFO L225 Difference]: With dead ends: 1604 [2022-03-15 15:24:10,227 INFO L226 Difference]: Without dead ends: 1393 [2022-03-15 15:24:10,227 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 [2022-03-15 15:24:10,227 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 15:24:10,227 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 287 Invalid, 754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 742 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 15:24:10,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1393 states. [2022-03-15 15:24:10,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1393 to 1293. [2022-03-15 15:24:10,242 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) [2022-03-15 15:24:10,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1293 states to 1293 states and 3593 transitions. [2022-03-15 15:24:10,244 INFO L78 Accepts]: Start accepts. Automaton has 1293 states and 3593 transitions. Word has length 26 [2022-03-15 15:24:10,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:10,244 INFO L470 AbstractCegarLoop]: Abstraction has 1293 states and 3593 transitions. [2022-03-15 15:24:10,244 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) [2022-03-15 15:24:10,244 INFO L276 IsEmpty]: Start isEmpty. Operand 1293 states and 3593 transitions. [2022-03-15 15:24:10,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:10,246 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:10,246 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] [2022-03-15 15:24:10,246 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable231 [2022-03-15 15:24:10,246 INFO L402 AbstractCegarLoop]: === Iteration 233 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:10,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:10,247 INFO L85 PathProgramCache]: Analyzing trace with hash -802894991, now seen corresponding path program 231 times [2022-03-15 15:24:10,247 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:10,247 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834143228] [2022-03-15 15:24:10,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:10,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:10,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:10,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:10,322 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:10,322 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834143228] [2022-03-15 15:24:10,322 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834143228] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:10,322 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:10,322 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:10,322 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759566462] [2022-03-15 15:24:10,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:10,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:10,323 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:10,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:10,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:10,323 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) [2022-03-15 15:24:10,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:10,575 INFO L93 Difference]: Finished difference Result 1480 states and 4066 transitions. [2022-03-15 15:24:10,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:10,575 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:10,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:10,577 INFO L225 Difference]: With dead ends: 1480 [2022-03-15 15:24:10,577 INFO L226 Difference]: Without dead ends: 1392 [2022-03-15 15:24:10,577 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:10,578 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 [2022-03-15 15:24:10,578 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] [2022-03-15 15:24:10,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1392 states. [2022-03-15 15:24:10,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1392 to 1290. [2022-03-15 15:24:10,591 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) [2022-03-15 15:24:10,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1290 states to 1290 states and 3585 transitions. [2022-03-15 15:24:10,593 INFO L78 Accepts]: Start accepts. Automaton has 1290 states and 3585 transitions. Word has length 26 [2022-03-15 15:24:10,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:10,593 INFO L470 AbstractCegarLoop]: Abstraction has 1290 states and 3585 transitions. [2022-03-15 15:24:10,593 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:10,593 INFO L276 IsEmpty]: Start isEmpty. Operand 1290 states and 3585 transitions. [2022-03-15 15:24:10,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:10,595 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:10,595 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] [2022-03-15 15:24:10,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable232 [2022-03-15 15:24:10,595 INFO L402 AbstractCegarLoop]: === Iteration 234 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:10,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:10,595 INFO L85 PathProgramCache]: Analyzing trace with hash -714958257, now seen corresponding path program 232 times [2022-03-15 15:24:10,595 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:10,595 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646693793] [2022-03-15 15:24:10,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:10,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:10,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:10,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:10,675 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:10,675 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646693793] [2022-03-15 15:24:10,675 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646693793] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:10,675 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:10,675 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:10,675 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735937927] [2022-03-15 15:24:10,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:10,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:10,675 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:10,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:10,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:10,676 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) [2022-03-15 15:24:10,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:10,918 INFO L93 Difference]: Finished difference Result 1427 states and 3933 transitions. [2022-03-15 15:24:10,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:10,918 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 [2022-03-15 15:24:10,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:10,920 INFO L225 Difference]: With dead ends: 1427 [2022-03-15 15:24:10,920 INFO L226 Difference]: Without dead ends: 1341 [2022-03-15 15:24:10,920 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:10,920 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 [2022-03-15 15:24:10,920 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] [2022-03-15 15:24:10,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1341 states. [2022-03-15 15:24:10,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1341 to 1293. [2022-03-15 15:24:10,931 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) [2022-03-15 15:24:10,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1293 states to 1293 states and 3590 transitions. [2022-03-15 15:24:10,933 INFO L78 Accepts]: Start accepts. Automaton has 1293 states and 3590 transitions. Word has length 26 [2022-03-15 15:24:10,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:10,933 INFO L470 AbstractCegarLoop]: Abstraction has 1293 states and 3590 transitions. [2022-03-15 15:24:10,933 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:10,933 INFO L276 IsEmpty]: Start isEmpty. Operand 1293 states and 3590 transitions. [2022-03-15 15:24:10,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:10,934 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:10,934 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:10,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable233 [2022-03-15 15:24:10,934 INFO L402 AbstractCegarLoop]: === Iteration 235 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:10,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:10,935 INFO L85 PathProgramCache]: Analyzing trace with hash -804717907, now seen corresponding path program 233 times [2022-03-15 15:24:10,935 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:10,935 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101572386] [2022-03-15 15:24:10,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:10,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:10,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:11,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:11,017 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:11,017 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101572386] [2022-03-15 15:24:11,017 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101572386] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:11,017 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:11,018 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:11,018 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564484307] [2022-03-15 15:24:11,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:11,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:11,018 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:11,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:11,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:11,018 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) [2022-03-15 15:24:11,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:11,256 INFO L93 Difference]: Finished difference Result 1430 states and 3930 transitions. [2022-03-15 15:24:11,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:11,256 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 [2022-03-15 15:24:11,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:11,258 INFO L225 Difference]: With dead ends: 1430 [2022-03-15 15:24:11,258 INFO L226 Difference]: Without dead ends: 1298 [2022-03-15 15:24:11,258 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 [2022-03-15 15:24:11,258 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 [2022-03-15 15:24:11,258 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] [2022-03-15 15:24:11,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1298 states. [2022-03-15 15:24:11,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1298 to 1201. [2022-03-15 15:24:11,268 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) [2022-03-15 15:24:11,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1201 states to 1201 states and 3351 transitions. [2022-03-15 15:24:11,270 INFO L78 Accepts]: Start accepts. Automaton has 1201 states and 3351 transitions. Word has length 26 [2022-03-15 15:24:11,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:11,270 INFO L470 AbstractCegarLoop]: Abstraction has 1201 states and 3351 transitions. [2022-03-15 15:24:11,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:11,270 INFO L276 IsEmpty]: Start isEmpty. Operand 1201 states and 3351 transitions. [2022-03-15 15:24:11,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:11,272 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:11,272 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] [2022-03-15 15:24:11,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable234 [2022-03-15 15:24:11,272 INFO L402 AbstractCegarLoop]: === Iteration 236 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:11,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:11,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1461656273, now seen corresponding path program 234 times [2022-03-15 15:24:11,272 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:11,272 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105973695] [2022-03-15 15:24:11,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:11,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:11,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:11,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:11,333 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:11,333 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105973695] [2022-03-15 15:24:11,333 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105973695] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:11,333 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:11,333 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:24:11,333 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632352547] [2022-03-15 15:24:11,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:11,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:24:11,333 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:11,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:24:11,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:24:11,333 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) [2022-03-15 15:24:11,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:11,545 INFO L93 Difference]: Finished difference Result 1516 states and 4163 transitions. [2022-03-15 15:24:11,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:24:11,545 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 [2022-03-15 15:24:11,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:11,547 INFO L225 Difference]: With dead ends: 1516 [2022-03-15 15:24:11,547 INFO L226 Difference]: Without dead ends: 1341 [2022-03-15 15:24:11,547 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 [2022-03-15 15:24:11,547 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 66 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:24:11,547 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] [2022-03-15 15:24:11,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1341 states. [2022-03-15 15:24:11,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1341 to 1275. [2022-03-15 15:24:11,557 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) [2022-03-15 15:24:11,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1275 states to 1275 states and 3530 transitions. [2022-03-15 15:24:11,559 INFO L78 Accepts]: Start accepts. Automaton has 1275 states and 3530 transitions. Word has length 26 [2022-03-15 15:24:11,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:11,559 INFO L470 AbstractCegarLoop]: Abstraction has 1275 states and 3530 transitions. [2022-03-15 15:24:11,559 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) [2022-03-15 15:24:11,559 INFO L276 IsEmpty]: Start isEmpty. Operand 1275 states and 3530 transitions. [2022-03-15 15:24:11,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:11,560 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:11,561 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:11,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable235 [2022-03-15 15:24:11,561 INFO L402 AbstractCegarLoop]: === Iteration 237 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:11,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:11,561 INFO L85 PathProgramCache]: Analyzing trace with hash 717041905, now seen corresponding path program 235 times [2022-03-15 15:24:11,561 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:11,561 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593961433] [2022-03-15 15:24:11,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:11,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:11,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:11,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:11,646 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:11,646 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593961433] [2022-03-15 15:24:11,647 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593961433] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:11,647 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:11,647 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:11,647 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847163144] [2022-03-15 15:24:11,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:11,647 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:11,647 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:11,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:11,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:11,647 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) [2022-03-15 15:24:11,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:11,901 INFO L93 Difference]: Finished difference Result 1474 states and 4020 transitions. [2022-03-15 15:24:11,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:11,902 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:11,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:11,903 INFO L225 Difference]: With dead ends: 1474 [2022-03-15 15:24:11,903 INFO L226 Difference]: Without dead ends: 1337 [2022-03-15 15:24:11,904 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 [2022-03-15 15:24:11,904 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 [2022-03-15 15:24:11,904 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] [2022-03-15 15:24:11,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1337 states. [2022-03-15 15:24:11,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1337 to 1249. [2022-03-15 15:24:11,914 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) [2022-03-15 15:24:11,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1249 states to 1249 states and 3456 transitions. [2022-03-15 15:24:11,916 INFO L78 Accepts]: Start accepts. Automaton has 1249 states and 3456 transitions. Word has length 26 [2022-03-15 15:24:11,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:11,916 INFO L470 AbstractCegarLoop]: Abstraction has 1249 states and 3456 transitions. [2022-03-15 15:24:11,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:11,916 INFO L276 IsEmpty]: Start isEmpty. Operand 1249 states and 3456 transitions. [2022-03-15 15:24:11,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:11,917 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:11,917 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:11,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable236 [2022-03-15 15:24:11,917 INFO L402 AbstractCegarLoop]: === Iteration 238 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:11,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:11,917 INFO L85 PathProgramCache]: Analyzing trace with hash 586578129, now seen corresponding path program 236 times [2022-03-15 15:24:11,918 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:11,918 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101504127] [2022-03-15 15:24:11,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:11,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:11,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:11,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:11,977 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:11,977 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101504127] [2022-03-15 15:24:11,977 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101504127] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:11,977 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:11,977 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:24:11,977 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517218961] [2022-03-15 15:24:11,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:11,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:24:11,978 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:11,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:24:11,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:24:11,978 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) [2022-03-15 15:24:12,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:12,168 INFO L93 Difference]: Finished difference Result 1527 states and 4192 transitions. [2022-03-15 15:24:12,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:24:12,168 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 [2022-03-15 15:24:12,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:12,170 INFO L225 Difference]: With dead ends: 1527 [2022-03-15 15:24:12,170 INFO L226 Difference]: Without dead ends: 1416 [2022-03-15 15:24:12,170 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 [2022-03-15 15:24:12,170 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 [2022-03-15 15:24:12,170 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] [2022-03-15 15:24:12,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1416 states. [2022-03-15 15:24:12,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1416 to 1255. [2022-03-15 15:24:12,181 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) [2022-03-15 15:24:12,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 3466 transitions. [2022-03-15 15:24:12,183 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 3466 transitions. Word has length 26 [2022-03-15 15:24:12,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:12,183 INFO L470 AbstractCegarLoop]: Abstraction has 1255 states and 3466 transitions. [2022-03-15 15:24:12,183 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) [2022-03-15 15:24:12,183 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 3466 transitions. [2022-03-15 15:24:12,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:12,184 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:12,184 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:12,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable237 [2022-03-15 15:24:12,185 INFO L402 AbstractCegarLoop]: === Iteration 239 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:12,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:12,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1086004243, now seen corresponding path program 237 times [2022-03-15 15:24:12,185 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:12,185 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308991892] [2022-03-15 15:24:12,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:12,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:12,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:12,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:12,254 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:12,254 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308991892] [2022-03-15 15:24:12,254 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308991892] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:12,254 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:12,255 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:12,255 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384389291] [2022-03-15 15:24:12,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:12,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:12,255 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:12,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:12,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:12,255 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) [2022-03-15 15:24:12,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:12,495 INFO L93 Difference]: Finished difference Result 1417 states and 3868 transitions. [2022-03-15 15:24:12,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:12,496 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:12,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:12,498 INFO L225 Difference]: With dead ends: 1417 [2022-03-15 15:24:12,498 INFO L226 Difference]: Without dead ends: 1324 [2022-03-15 15:24:12,498 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:12,498 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 [2022-03-15 15:24:12,498 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] [2022-03-15 15:24:12,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1324 states. [2022-03-15 15:24:12,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1324 to 1258. [2022-03-15 15:24:12,508 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) [2022-03-15 15:24:12,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1258 states to 1258 states and 3477 transitions. [2022-03-15 15:24:12,510 INFO L78 Accepts]: Start accepts. Automaton has 1258 states and 3477 transitions. Word has length 26 [2022-03-15 15:24:12,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:12,510 INFO L470 AbstractCegarLoop]: Abstraction has 1258 states and 3477 transitions. [2022-03-15 15:24:12,510 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) [2022-03-15 15:24:12,510 INFO L276 IsEmpty]: Start isEmpty. Operand 1258 states and 3477 transitions. [2022-03-15 15:24:12,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:12,512 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:12,512 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] [2022-03-15 15:24:12,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable238 [2022-03-15 15:24:12,512 INFO L402 AbstractCegarLoop]: === Iteration 240 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:12,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:12,512 INFO L85 PathProgramCache]: Analyzing trace with hash -625337261, now seen corresponding path program 238 times [2022-03-15 15:24:12,512 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:12,512 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283886809] [2022-03-15 15:24:12,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:12,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:12,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:12,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:12,580 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:12,581 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283886809] [2022-03-15 15:24:12,581 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283886809] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:12,581 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:12,581 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:12,581 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720931858] [2022-03-15 15:24:12,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:12,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:12,581 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:12,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:12,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:12,581 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) [2022-03-15 15:24:12,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:12,839 INFO L93 Difference]: Finished difference Result 1452 states and 3941 transitions. [2022-03-15 15:24:12,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:12,839 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 [2022-03-15 15:24:12,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:12,841 INFO L225 Difference]: With dead ends: 1452 [2022-03-15 15:24:12,841 INFO L226 Difference]: Without dead ends: 1334 [2022-03-15 15:24:12,841 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:12,841 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 [2022-03-15 15:24:12,842 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] [2022-03-15 15:24:12,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1334 states. [2022-03-15 15:24:12,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1334 to 1252. [2022-03-15 15:24:12,852 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) [2022-03-15 15:24:12,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1252 states to 1252 states and 3449 transitions. [2022-03-15 15:24:12,854 INFO L78 Accepts]: Start accepts. Automaton has 1252 states and 3449 transitions. Word has length 26 [2022-03-15 15:24:12,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:12,854 INFO L470 AbstractCegarLoop]: Abstraction has 1252 states and 3449 transitions. [2022-03-15 15:24:12,854 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:12,854 INFO L276 IsEmpty]: Start isEmpty. Operand 1252 states and 3449 transitions. [2022-03-15 15:24:12,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:12,856 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:12,856 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:12,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable239 [2022-03-15 15:24:12,856 INFO L402 AbstractCegarLoop]: === Iteration 241 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:12,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:12,856 INFO L85 PathProgramCache]: Analyzing trace with hash 2006580209, now seen corresponding path program 239 times [2022-03-15 15:24:12,856 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:12,856 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957465419] [2022-03-15 15:24:12,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:12,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:12,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:12,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:12,941 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:12,941 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957465419] [2022-03-15 15:24:12,941 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957465419] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:12,941 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:12,941 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:12,942 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062909376] [2022-03-15 15:24:12,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:12,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:12,942 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:12,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:12,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:12,942 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) [2022-03-15 15:24:13,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:13,174 INFO L93 Difference]: Finished difference Result 1528 states and 4182 transitions. [2022-03-15 15:24:13,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:13,174 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:13,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:13,176 INFO L225 Difference]: With dead ends: 1528 [2022-03-15 15:24:13,176 INFO L226 Difference]: Without dead ends: 1420 [2022-03-15 15:24:13,176 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:13,176 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 [2022-03-15 15:24:13,176 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] [2022-03-15 15:24:13,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1420 states. [2022-03-15 15:24:13,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1420 to 1249. [2022-03-15 15:24:13,187 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) [2022-03-15 15:24:13,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1249 states to 1249 states and 3441 transitions. [2022-03-15 15:24:13,189 INFO L78 Accepts]: Start accepts. Automaton has 1249 states and 3441 transitions. Word has length 26 [2022-03-15 15:24:13,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:13,189 INFO L470 AbstractCegarLoop]: Abstraction has 1249 states and 3441 transitions. [2022-03-15 15:24:13,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:13,189 INFO L276 IsEmpty]: Start isEmpty. Operand 1249 states and 3441 transitions. [2022-03-15 15:24:13,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:13,190 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:13,190 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:13,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable240 [2022-03-15 15:24:13,190 INFO L402 AbstractCegarLoop]: === Iteration 242 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:13,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:13,191 INFO L85 PathProgramCache]: Analyzing trace with hash 946334187, now seen corresponding path program 240 times [2022-03-15 15:24:13,191 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:13,191 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720376486] [2022-03-15 15:24:13,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:13,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:13,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:13,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:13,259 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:13,259 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720376486] [2022-03-15 15:24:13,259 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720376486] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:13,259 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:13,259 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:24:13,259 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952054839] [2022-03-15 15:24:13,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:13,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:24:13,259 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:13,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:24:13,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:24:13,260 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) [2022-03-15 15:24:13,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:13,446 INFO L93 Difference]: Finished difference Result 1511 states and 4128 transitions. [2022-03-15 15:24:13,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:24:13,447 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 [2022-03-15 15:24:13,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:13,449 INFO L225 Difference]: With dead ends: 1511 [2022-03-15 15:24:13,449 INFO L226 Difference]: Without dead ends: 1418 [2022-03-15 15:24:13,449 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 [2022-03-15 15:24:13,449 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, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:24:13,449 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 246 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 506 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:24:13,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1418 states. [2022-03-15 15:24:13,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1418 to 1275. [2022-03-15 15:24:13,460 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) [2022-03-15 15:24:13,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1275 states to 1275 states and 3517 transitions. [2022-03-15 15:24:13,462 INFO L78 Accepts]: Start accepts. Automaton has 1275 states and 3517 transitions. Word has length 26 [2022-03-15 15:24:13,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:13,462 INFO L470 AbstractCegarLoop]: Abstraction has 1275 states and 3517 transitions. [2022-03-15 15:24:13,462 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) [2022-03-15 15:24:13,462 INFO L276 IsEmpty]: Start isEmpty. Operand 1275 states and 3517 transitions. [2022-03-15 15:24:13,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:13,463 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:13,463 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:13,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable241 [2022-03-15 15:24:13,463 INFO L402 AbstractCegarLoop]: === Iteration 243 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:13,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:13,464 INFO L85 PathProgramCache]: Analyzing trace with hash -765007317, now seen corresponding path program 241 times [2022-03-15 15:24:13,464 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:13,464 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091278046] [2022-03-15 15:24:13,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:13,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:13,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:13,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:13,532 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:13,532 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091278046] [2022-03-15 15:24:13,532 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091278046] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:13,532 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:13,532 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:13,532 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350748757] [2022-03-15 15:24:13,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:13,532 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:13,532 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:13,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:13,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:13,532 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) [2022-03-15 15:24:13,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:13,774 INFO L93 Difference]: Finished difference Result 1582 states and 4293 transitions. [2022-03-15 15:24:13,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:13,775 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:13,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:13,777 INFO L225 Difference]: With dead ends: 1582 [2022-03-15 15:24:13,777 INFO L226 Difference]: Without dead ends: 1369 [2022-03-15 15:24:13,777 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:13,777 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 [2022-03-15 15:24:13,777 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] [2022-03-15 15:24:13,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1369 states. [2022-03-15 15:24:13,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1369 to 1275. [2022-03-15 15:24:13,788 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) [2022-03-15 15:24:13,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1275 states to 1275 states and 3491 transitions. [2022-03-15 15:24:13,790 INFO L78 Accepts]: Start accepts. Automaton has 1275 states and 3491 transitions. Word has length 26 [2022-03-15 15:24:13,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:13,790 INFO L470 AbstractCegarLoop]: Abstraction has 1275 states and 3491 transitions. [2022-03-15 15:24:13,790 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) [2022-03-15 15:24:13,790 INFO L276 IsEmpty]: Start isEmpty. Operand 1275 states and 3491 transitions. [2022-03-15 15:24:13,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:13,791 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:13,791 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:13,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable242 [2022-03-15 15:24:13,791 INFO L402 AbstractCegarLoop]: === Iteration 244 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:13,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:13,791 INFO L85 PathProgramCache]: Analyzing trace with hash -591085043, now seen corresponding path program 242 times [2022-03-15 15:24:13,792 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:13,792 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581171255] [2022-03-15 15:24:13,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:13,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:13,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:13,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:13,864 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:13,864 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581171255] [2022-03-15 15:24:13,865 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581171255] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:13,865 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:13,865 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:13,865 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418314346] [2022-03-15 15:24:13,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:13,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:13,865 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:13,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:13,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:13,865 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) [2022-03-15 15:24:14,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:14,096 INFO L93 Difference]: Finished difference Result 1460 states and 3935 transitions. [2022-03-15 15:24:14,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:14,097 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 [2022-03-15 15:24:14,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:14,098 INFO L225 Difference]: With dead ends: 1460 [2022-03-15 15:24:14,098 INFO L226 Difference]: Without dead ends: 1367 [2022-03-15 15:24:14,099 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:14,099 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 [2022-03-15 15:24:14,099 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] [2022-03-15 15:24:14,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1367 states. [2022-03-15 15:24:14,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1367 to 1275. [2022-03-15 15:24:14,109 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) [2022-03-15 15:24:14,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1275 states to 1275 states and 3487 transitions. [2022-03-15 15:24:14,111 INFO L78 Accepts]: Start accepts. Automaton has 1275 states and 3487 transitions. Word has length 26 [2022-03-15 15:24:14,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:14,111 INFO L470 AbstractCegarLoop]: Abstraction has 1275 states and 3487 transitions. [2022-03-15 15:24:14,111 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:14,111 INFO L276 IsEmpty]: Start isEmpty. Operand 1275 states and 3487 transitions. [2022-03-15 15:24:14,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:14,113 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:14,113 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:14,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable243 [2022-03-15 15:24:14,113 INFO L402 AbstractCegarLoop]: === Iteration 245 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:14,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:14,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1992540749, now seen corresponding path program 243 times [2022-03-15 15:24:14,113 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:14,113 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103820904] [2022-03-15 15:24:14,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:14,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:14,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:14,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:14,181 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:14,181 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103820904] [2022-03-15 15:24:14,181 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103820904] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:14,181 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:14,181 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:14,181 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816980703] [2022-03-15 15:24:14,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:14,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:14,181 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:14,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:14,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:14,182 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) [2022-03-15 15:24:14,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:14,437 INFO L93 Difference]: Finished difference Result 1471 states and 3964 transitions. [2022-03-15 15:24:14,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:14,437 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 [2022-03-15 15:24:14,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:14,439 INFO L225 Difference]: With dead ends: 1471 [2022-03-15 15:24:14,439 INFO L226 Difference]: Without dead ends: 1362 [2022-03-15 15:24:14,439 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 [2022-03-15 15:24:14,439 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 [2022-03-15 15:24:14,439 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] [2022-03-15 15:24:14,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1362 states. [2022-03-15 15:24:14,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1362 to 1290. [2022-03-15 15:24:14,450 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) [2022-03-15 15:24:14,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1290 states to 1290 states and 3523 transitions. [2022-03-15 15:24:14,452 INFO L78 Accepts]: Start accepts. Automaton has 1290 states and 3523 transitions. Word has length 26 [2022-03-15 15:24:14,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:14,452 INFO L470 AbstractCegarLoop]: Abstraction has 1290 states and 3523 transitions. [2022-03-15 15:24:14,452 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:14,452 INFO L276 IsEmpty]: Start isEmpty. Operand 1290 states and 3523 transitions. [2022-03-15 15:24:14,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:14,454 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:14,454 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] [2022-03-15 15:24:14,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable244 [2022-03-15 15:24:14,454 INFO L402 AbstractCegarLoop]: === Iteration 246 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:14,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:14,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1873244311, now seen corresponding path program 244 times [2022-03-15 15:24:14,454 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:14,454 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764107607] [2022-03-15 15:24:14,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:14,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:14,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:14,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:14,522 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:14,522 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764107607] [2022-03-15 15:24:14,522 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764107607] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:14,522 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:14,522 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:14,522 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109704109] [2022-03-15 15:24:14,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:14,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:14,523 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:14,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:14,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:14,523 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) [2022-03-15 15:24:14,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:14,786 INFO L93 Difference]: Finished difference Result 1456 states and 3922 transitions. [2022-03-15 15:24:14,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:14,786 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:14,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:14,788 INFO L225 Difference]: With dead ends: 1456 [2022-03-15 15:24:14,788 INFO L226 Difference]: Without dead ends: 1294 [2022-03-15 15:24:14,788 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:14,788 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 15:24:14,788 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 289 Invalid, 733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 723 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 15:24:14,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1294 states. [2022-03-15 15:24:14,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1294 to 1245. [2022-03-15 15:24:14,805 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) [2022-03-15 15:24:14,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1245 states to 1245 states and 3411 transitions. [2022-03-15 15:24:14,807 INFO L78 Accepts]: Start accepts. Automaton has 1245 states and 3411 transitions. Word has length 26 [2022-03-15 15:24:14,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:14,808 INFO L470 AbstractCegarLoop]: Abstraction has 1245 states and 3411 transitions. [2022-03-15 15:24:14,808 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:14,808 INFO L276 IsEmpty]: Start isEmpty. Operand 1245 states and 3411 transitions. [2022-03-15 15:24:14,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:14,810 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:14,810 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:14,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable245 [2022-03-15 15:24:14,810 INFO L402 AbstractCegarLoop]: === Iteration 247 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:14,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:14,810 INFO L85 PathProgramCache]: Analyzing trace with hash 842799917, now seen corresponding path program 245 times [2022-03-15 15:24:14,810 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:14,811 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589472284] [2022-03-15 15:24:14,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:14,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:14,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:14,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:14,874 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:14,874 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589472284] [2022-03-15 15:24:14,874 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589472284] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:14,874 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:14,874 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:24:14,874 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261188706] [2022-03-15 15:24:14,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:14,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:24:14,874 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:14,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:24:14,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:24:14,874 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) [2022-03-15 15:24:15,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:15,078 INFO L93 Difference]: Finished difference Result 1475 states and 3997 transitions. [2022-03-15 15:24:15,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:24:15,078 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 [2022-03-15 15:24:15,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:15,080 INFO L225 Difference]: With dead ends: 1475 [2022-03-15 15:24:15,080 INFO L226 Difference]: Without dead ends: 1320 [2022-03-15 15:24:15,080 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 [2022-03-15 15:24:15,080 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 55 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 551 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:24:15,080 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] [2022-03-15 15:24:15,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1320 states. [2022-03-15 15:24:15,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1320 to 1284. [2022-03-15 15:24:15,091 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) [2022-03-15 15:24:15,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1284 states to 1284 states and 3492 transitions. [2022-03-15 15:24:15,093 INFO L78 Accepts]: Start accepts. Automaton has 1284 states and 3492 transitions. Word has length 26 [2022-03-15 15:24:15,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:15,093 INFO L470 AbstractCegarLoop]: Abstraction has 1284 states and 3492 transitions. [2022-03-15 15:24:15,093 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) [2022-03-15 15:24:15,093 INFO L276 IsEmpty]: Start isEmpty. Operand 1284 states and 3492 transitions. [2022-03-15 15:24:15,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:15,094 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:15,095 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:15,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable246 [2022-03-15 15:24:15,095 INFO L402 AbstractCegarLoop]: === Iteration 248 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:15,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:15,095 INFO L85 PathProgramCache]: Analyzing trace with hash -1273469201, now seen corresponding path program 246 times [2022-03-15 15:24:15,095 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:15,095 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350773131] [2022-03-15 15:24:15,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:15,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:15,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:15,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:15,165 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:15,165 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350773131] [2022-03-15 15:24:15,165 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350773131] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:15,165 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:15,165 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:15,165 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580306401] [2022-03-15 15:24:15,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:15,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:15,165 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:15,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:15,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:15,166 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) [2022-03-15 15:24:15,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:15,408 INFO L93 Difference]: Finished difference Result 1451 states and 3899 transitions. [2022-03-15 15:24:15,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:15,408 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:15,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:15,410 INFO L225 Difference]: With dead ends: 1451 [2022-03-15 15:24:15,410 INFO L226 Difference]: Without dead ends: 1310 [2022-03-15 15:24:15,410 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:15,410 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 [2022-03-15 15:24:15,410 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] [2022-03-15 15:24:15,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1310 states. [2022-03-15 15:24:15,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1310 to 1258. [2022-03-15 15:24:15,420 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) [2022-03-15 15:24:15,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1258 states to 1258 states and 3420 transitions. [2022-03-15 15:24:15,422 INFO L78 Accepts]: Start accepts. Automaton has 1258 states and 3420 transitions. Word has length 26 [2022-03-15 15:24:15,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:15,422 INFO L470 AbstractCegarLoop]: Abstraction has 1258 states and 3420 transitions. [2022-03-15 15:24:15,422 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:15,422 INFO L276 IsEmpty]: Start isEmpty. Operand 1258 states and 3420 transitions. [2022-03-15 15:24:15,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:15,423 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:15,424 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:15,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable247 [2022-03-15 15:24:15,424 INFO L402 AbstractCegarLoop]: === Iteration 249 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:15,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:15,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1505149813, now seen corresponding path program 247 times [2022-03-15 15:24:15,424 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:15,424 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280296551] [2022-03-15 15:24:15,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:15,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:15,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:15,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:15,493 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:15,493 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280296551] [2022-03-15 15:24:15,493 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280296551] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:15,493 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:15,493 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:15,493 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372053744] [2022-03-15 15:24:15,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:15,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:15,493 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:15,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:15,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:15,494 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) [2022-03-15 15:24:15,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:15,722 INFO L93 Difference]: Finished difference Result 1416 states and 3802 transitions. [2022-03-15 15:24:15,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:15,723 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 [2022-03-15 15:24:15,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:15,725 INFO L225 Difference]: With dead ends: 1416 [2022-03-15 15:24:15,725 INFO L226 Difference]: Without dead ends: 1335 [2022-03-15 15:24:15,725 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 [2022-03-15 15:24:15,725 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 [2022-03-15 15:24:15,725 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] [2022-03-15 15:24:15,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1335 states. [2022-03-15 15:24:15,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1335 to 1260. [2022-03-15 15:24:15,735 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) [2022-03-15 15:24:15,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1260 states to 1260 states and 3427 transitions. [2022-03-15 15:24:15,737 INFO L78 Accepts]: Start accepts. Automaton has 1260 states and 3427 transitions. Word has length 26 [2022-03-15 15:24:15,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:15,737 INFO L470 AbstractCegarLoop]: Abstraction has 1260 states and 3427 transitions. [2022-03-15 15:24:15,737 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:15,737 INFO L276 IsEmpty]: Start isEmpty. Operand 1260 states and 3427 transitions. [2022-03-15 15:24:15,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:15,739 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:15,739 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] [2022-03-15 15:24:15,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable248 [2022-03-15 15:24:15,739 INFO L402 AbstractCegarLoop]: === Iteration 250 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:15,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:15,739 INFO L85 PathProgramCache]: Analyzing trace with hash 853516557, now seen corresponding path program 248 times [2022-03-15 15:24:15,739 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:15,739 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830624291] [2022-03-15 15:24:15,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:15,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:15,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:15,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:15,808 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:15,808 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830624291] [2022-03-15 15:24:15,808 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830624291] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:15,808 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:15,808 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:15,808 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069642484] [2022-03-15 15:24:15,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:15,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:15,809 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:15,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:15,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:15,809 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) [2022-03-15 15:24:16,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:16,053 INFO L93 Difference]: Finished difference Result 1422 states and 3809 transitions. [2022-03-15 15:24:16,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:16,053 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 [2022-03-15 15:24:16,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:16,055 INFO L225 Difference]: With dead ends: 1422 [2022-03-15 15:24:16,055 INFO L226 Difference]: Without dead ends: 1302 [2022-03-15 15:24:16,055 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:16,055 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 [2022-03-15 15:24:16,056 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] [2022-03-15 15:24:16,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1302 states. [2022-03-15 15:24:16,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1302 to 1256. [2022-03-15 15:24:16,069 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) [2022-03-15 15:24:16,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1256 states to 1256 states and 3414 transitions. [2022-03-15 15:24:16,070 INFO L78 Accepts]: Start accepts. Automaton has 1256 states and 3414 transitions. Word has length 26 [2022-03-15 15:24:16,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:16,071 INFO L470 AbstractCegarLoop]: Abstraction has 1256 states and 3414 transitions. [2022-03-15 15:24:16,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:16,071 INFO L276 IsEmpty]: Start isEmpty. Operand 1256 states and 3414 transitions. [2022-03-15 15:24:16,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:16,072 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:16,072 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:16,072 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable249 [2022-03-15 15:24:16,072 INFO L402 AbstractCegarLoop]: === Iteration 251 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:16,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:16,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1220888941, now seen corresponding path program 249 times [2022-03-15 15:24:16,073 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:16,073 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405260435] [2022-03-15 15:24:16,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:16,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:16,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:16,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:16,146 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:16,146 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405260435] [2022-03-15 15:24:16,146 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405260435] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:16,146 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:16,146 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:16,146 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780282568] [2022-03-15 15:24:16,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:16,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:16,147 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:16,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:16,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:16,147 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) [2022-03-15 15:24:16,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:16,369 INFO L93 Difference]: Finished difference Result 1383 states and 3716 transitions. [2022-03-15 15:24:16,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:16,369 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:16,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:16,370 INFO L225 Difference]: With dead ends: 1383 [2022-03-15 15:24:16,371 INFO L226 Difference]: Without dead ends: 1292 [2022-03-15 15:24:16,371 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 [2022-03-15 15:24:16,371 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 [2022-03-15 15:24:16,371 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] [2022-03-15 15:24:16,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1292 states. [2022-03-15 15:24:16,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1292 to 1244. [2022-03-15 15:24:16,381 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) [2022-03-15 15:24:16,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1244 states to 1244 states and 3391 transitions. [2022-03-15 15:24:16,383 INFO L78 Accepts]: Start accepts. Automaton has 1244 states and 3391 transitions. Word has length 26 [2022-03-15 15:24:16,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:16,383 INFO L470 AbstractCegarLoop]: Abstraction has 1244 states and 3391 transitions. [2022-03-15 15:24:16,383 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:16,383 INFO L276 IsEmpty]: Start isEmpty. Operand 1244 states and 3391 transitions. [2022-03-15 15:24:16,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:16,384 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:16,384 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:16,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable250 [2022-03-15 15:24:16,384 INFO L402 AbstractCegarLoop]: === Iteration 252 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:16,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:16,385 INFO L85 PathProgramCache]: Analyzing trace with hash -331159793, now seen corresponding path program 250 times [2022-03-15 15:24:16,385 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:16,385 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813346391] [2022-03-15 15:24:16,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:16,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:16,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:16,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:16,444 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:16,444 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813346391] [2022-03-15 15:24:16,444 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813346391] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:16,444 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:16,444 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:24:16,444 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237493067] [2022-03-15 15:24:16,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:16,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:24:16,444 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:16,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:24:16,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:24:16,445 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) [2022-03-15 15:24:16,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:16,649 INFO L93 Difference]: Finished difference Result 1483 states and 4005 transitions. [2022-03-15 15:24:16,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:24:16,649 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 [2022-03-15 15:24:16,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:16,651 INFO L225 Difference]: With dead ends: 1483 [2022-03-15 15:24:16,651 INFO L226 Difference]: Without dead ends: 1331 [2022-03-15 15:24:16,651 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 [2022-03-15 15:24:16,651 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 57 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:24:16,651 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] [2022-03-15 15:24:16,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1331 states. [2022-03-15 15:24:16,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1331 to 1273. [2022-03-15 15:24:16,661 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) [2022-03-15 15:24:16,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1273 states to 1273 states and 3449 transitions. [2022-03-15 15:24:16,663 INFO L78 Accepts]: Start accepts. Automaton has 1273 states and 3449 transitions. Word has length 26 [2022-03-15 15:24:16,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:16,663 INFO L470 AbstractCegarLoop]: Abstraction has 1273 states and 3449 transitions. [2022-03-15 15:24:16,663 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) [2022-03-15 15:24:16,663 INFO L276 IsEmpty]: Start isEmpty. Operand 1273 states and 3449 transitions. [2022-03-15 15:24:16,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:16,664 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:16,664 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] [2022-03-15 15:24:16,664 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable251 [2022-03-15 15:24:16,664 INFO L402 AbstractCegarLoop]: === Iteration 253 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:16,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:16,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1847538385, now seen corresponding path program 251 times [2022-03-15 15:24:16,665 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:16,665 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600615045] [2022-03-15 15:24:16,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:16,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:16,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:16,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:16,734 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:16,734 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600615045] [2022-03-15 15:24:16,734 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600615045] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:16,734 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:16,734 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:16,734 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620815650] [2022-03-15 15:24:16,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:16,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:16,735 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:16,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:16,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:16,735 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) [2022-03-15 15:24:16,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:16,979 INFO L93 Difference]: Finished difference Result 1455 states and 3899 transitions. [2022-03-15 15:24:16,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:16,979 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:16,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:16,981 INFO L225 Difference]: With dead ends: 1455 [2022-03-15 15:24:16,981 INFO L226 Difference]: Without dead ends: 1330 [2022-03-15 15:24:16,981 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 [2022-03-15 15:24:16,981 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 [2022-03-15 15:24:16,981 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] [2022-03-15 15:24:16,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1330 states. [2022-03-15 15:24:16,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1330 to 1247. [2022-03-15 15:24:16,993 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) [2022-03-15 15:24:16,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1247 states to 1247 states and 3387 transitions. [2022-03-15 15:24:16,995 INFO L78 Accepts]: Start accepts. Automaton has 1247 states and 3387 transitions. Word has length 26 [2022-03-15 15:24:16,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:16,995 INFO L470 AbstractCegarLoop]: Abstraction has 1247 states and 3387 transitions. [2022-03-15 15:24:16,995 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:16,995 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states and 3387 transitions. [2022-03-15 15:24:16,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:16,997 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:16,997 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] [2022-03-15 15:24:16,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable252 [2022-03-15 15:24:16,997 INFO L402 AbstractCegarLoop]: === Iteration 254 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:16,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:16,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1033646385, now seen corresponding path program 252 times [2022-03-15 15:24:16,997 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:16,997 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411574668] [2022-03-15 15:24:16,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:16,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:16,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:17,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:17,071 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:17,071 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411574668] [2022-03-15 15:24:17,071 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411574668] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:17,071 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:17,071 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:17,071 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373377573] [2022-03-15 15:24:17,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:17,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:17,071 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:17,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:17,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:17,072 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) [2022-03-15 15:24:17,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:17,314 INFO L93 Difference]: Finished difference Result 1414 states and 3792 transitions. [2022-03-15 15:24:17,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:17,314 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:17,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:17,316 INFO L225 Difference]: With dead ends: 1414 [2022-03-15 15:24:17,316 INFO L226 Difference]: Without dead ends: 1315 [2022-03-15 15:24:17,316 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:17,316 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 [2022-03-15 15:24:17,316 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] [2022-03-15 15:24:17,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1315 states. [2022-03-15 15:24:17,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1315 to 1253. [2022-03-15 15:24:17,327 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) [2022-03-15 15:24:17,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1253 states to 1253 states and 3397 transitions. [2022-03-15 15:24:17,328 INFO L78 Accepts]: Start accepts. Automaton has 1253 states and 3397 transitions. Word has length 26 [2022-03-15 15:24:17,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:17,328 INFO L470 AbstractCegarLoop]: Abstraction has 1253 states and 3397 transitions. [2022-03-15 15:24:17,328 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) [2022-03-15 15:24:17,329 INFO L276 IsEmpty]: Start isEmpty. Operand 1253 states and 3397 transitions. [2022-03-15 15:24:17,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:17,330 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:17,330 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:17,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable253 [2022-03-15 15:24:17,330 INFO L402 AbstractCegarLoop]: === Iteration 255 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:17,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:17,330 INFO L85 PathProgramCache]: Analyzing trace with hash -534220271, now seen corresponding path program 253 times [2022-03-15 15:24:17,330 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:17,330 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425375222] [2022-03-15 15:24:17,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:17,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:17,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:17,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:17,401 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:17,401 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425375222] [2022-03-15 15:24:17,401 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425375222] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:17,401 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:17,401 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:17,401 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546788184] [2022-03-15 15:24:17,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:17,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:17,401 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:17,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:17,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:17,402 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) [2022-03-15 15:24:17,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:17,634 INFO L93 Difference]: Finished difference Result 1410 states and 3784 transitions. [2022-03-15 15:24:17,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:17,635 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:17,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:17,636 INFO L225 Difference]: With dead ends: 1410 [2022-03-15 15:24:17,636 INFO L226 Difference]: Without dead ends: 1329 [2022-03-15 15:24:17,637 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:17,637 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 [2022-03-15 15:24:17,637 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] [2022-03-15 15:24:17,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1329 states. [2022-03-15 15:24:17,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1329 to 1256. [2022-03-15 15:24:17,653 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) [2022-03-15 15:24:17,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1256 states to 1256 states and 3408 transitions. [2022-03-15 15:24:17,655 INFO L78 Accepts]: Start accepts. Automaton has 1256 states and 3408 transitions. Word has length 26 [2022-03-15 15:24:17,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:17,655 INFO L470 AbstractCegarLoop]: Abstraction has 1256 states and 3408 transitions. [2022-03-15 15:24:17,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:17,655 INFO L276 IsEmpty]: Start isEmpty. Operand 1256 states and 3408 transitions. [2022-03-15 15:24:17,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:17,657 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:17,657 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:17,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable254 [2022-03-15 15:24:17,657 INFO L402 AbstractCegarLoop]: === Iteration 256 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:17,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:17,658 INFO L85 PathProgramCache]: Analyzing trace with hash 2049405521, now seen corresponding path program 254 times [2022-03-15 15:24:17,658 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:17,658 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600236078] [2022-03-15 15:24:17,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:17,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:17,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:17,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:17,730 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:17,731 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600236078] [2022-03-15 15:24:17,731 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600236078] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:17,731 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:17,731 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:17,731 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894333471] [2022-03-15 15:24:17,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:17,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:17,731 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:17,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:17,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:17,732 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) [2022-03-15 15:24:17,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:17,986 INFO L93 Difference]: Finished difference Result 1435 states and 3835 transitions. [2022-03-15 15:24:17,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:17,987 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:17,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:17,989 INFO L225 Difference]: With dead ends: 1435 [2022-03-15 15:24:17,989 INFO L226 Difference]: Without dead ends: 1329 [2022-03-15 15:24:17,989 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:17,990 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 [2022-03-15 15:24:17,990 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] [2022-03-15 15:24:17,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1329 states. [2022-03-15 15:24:18,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1329 to 1253. [2022-03-15 15:24:18,002 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) [2022-03-15 15:24:18,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1253 states to 1253 states and 3397 transitions. [2022-03-15 15:24:18,004 INFO L78 Accepts]: Start accepts. Automaton has 1253 states and 3397 transitions. Word has length 26 [2022-03-15 15:24:18,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:18,004 INFO L470 AbstractCegarLoop]: Abstraction has 1253 states and 3397 transitions. [2022-03-15 15:24:18,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:18,005 INFO L276 IsEmpty]: Start isEmpty. Operand 1253 states and 3397 transitions. [2022-03-15 15:24:18,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:18,006 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:18,006 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:18,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable255 [2022-03-15 15:24:18,006 INFO L402 AbstractCegarLoop]: === Iteration 257 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:18,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:18,006 INFO L85 PathProgramCache]: Analyzing trace with hash 386355695, now seen corresponding path program 255 times [2022-03-15 15:24:18,007 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:18,007 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553532331] [2022-03-15 15:24:18,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:18,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:18,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:18,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:18,080 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:18,081 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553532331] [2022-03-15 15:24:18,081 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553532331] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:18,081 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:18,081 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:18,081 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518078491] [2022-03-15 15:24:18,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:18,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:18,081 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:18,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:18,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:18,081 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) [2022-03-15 15:24:18,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:18,312 INFO L93 Difference]: Finished difference Result 1387 states and 3720 transitions. [2022-03-15 15:24:18,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:18,312 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:18,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:18,314 INFO L225 Difference]: With dead ends: 1387 [2022-03-15 15:24:18,314 INFO L226 Difference]: Without dead ends: 1291 [2022-03-15 15:24:18,314 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:18,314 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 [2022-03-15 15:24:18,314 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] [2022-03-15 15:24:18,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1291 states. [2022-03-15 15:24:18,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1291 to 1238. [2022-03-15 15:24:18,324 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) [2022-03-15 15:24:18,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1238 states to 1238 states and 3364 transitions. [2022-03-15 15:24:18,326 INFO L78 Accepts]: Start accepts. Automaton has 1238 states and 3364 transitions. Word has length 26 [2022-03-15 15:24:18,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:18,326 INFO L470 AbstractCegarLoop]: Abstraction has 1238 states and 3364 transitions. [2022-03-15 15:24:18,326 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:18,326 INFO L276 IsEmpty]: Start isEmpty. Operand 1238 states and 3364 transitions. [2022-03-15 15:24:18,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:18,327 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:18,327 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] [2022-03-15 15:24:18,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable256 [2022-03-15 15:24:18,328 INFO L402 AbstractCegarLoop]: === Iteration 258 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:18,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:18,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1058325163, now seen corresponding path program 256 times [2022-03-15 15:24:18,328 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:18,328 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757953433] [2022-03-15 15:24:18,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:18,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:18,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:18,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:18,390 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:18,390 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757953433] [2022-03-15 15:24:18,390 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757953433] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:18,390 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:18,390 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:24:18,390 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756532379] [2022-03-15 15:24:18,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:18,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:24:18,391 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:18,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:24:18,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:24:18,391 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) [2022-03-15 15:24:18,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:18,566 INFO L93 Difference]: Finished difference Result 1442 states and 3911 transitions. [2022-03-15 15:24:18,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:24:18,566 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 [2022-03-15 15:24:18,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:18,568 INFO L225 Difference]: With dead ends: 1442 [2022-03-15 15:24:18,568 INFO L226 Difference]: Without dead ends: 1357 [2022-03-15 15:24:18,568 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 [2022-03-15 15:24:18,568 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, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:24:18,568 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 197 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:24:18,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1357 states. [2022-03-15 15:24:18,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1357 to 1252. [2022-03-15 15:24:18,579 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) [2022-03-15 15:24:18,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1252 states to 1252 states and 3402 transitions. [2022-03-15 15:24:18,580 INFO L78 Accepts]: Start accepts. Automaton has 1252 states and 3402 transitions. Word has length 26 [2022-03-15 15:24:18,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:18,581 INFO L470 AbstractCegarLoop]: Abstraction has 1252 states and 3402 transitions. [2022-03-15 15:24:18,581 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) [2022-03-15 15:24:18,581 INFO L276 IsEmpty]: Start isEmpty. Operand 1252 states and 3402 transitions. [2022-03-15 15:24:18,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:18,582 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:18,582 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] [2022-03-15 15:24:18,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable257 [2022-03-15 15:24:18,582 INFO L402 AbstractCegarLoop]: === Iteration 259 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:18,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:18,582 INFO L85 PathProgramCache]: Analyzing trace with hash -510603379, now seen corresponding path program 257 times [2022-03-15 15:24:18,582 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:18,582 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400757638] [2022-03-15 15:24:18,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:18,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:18,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:18,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:18,654 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:18,655 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400757638] [2022-03-15 15:24:18,655 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400757638] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:18,655 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:18,655 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:24:18,655 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045254028] [2022-03-15 15:24:18,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:18,655 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:24:18,655 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:18,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:24:18,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:24:18,655 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) [2022-03-15 15:24:18,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:18,843 INFO L93 Difference]: Finished difference Result 1475 states and 4004 transitions. [2022-03-15 15:24:18,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:24:18,843 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 [2022-03-15 15:24:18,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:18,845 INFO L225 Difference]: With dead ends: 1475 [2022-03-15 15:24:18,845 INFO L226 Difference]: Without dead ends: 1382 [2022-03-15 15:24:18,845 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 [2022-03-15 15:24:18,845 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 [2022-03-15 15:24:18,845 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] [2022-03-15 15:24:18,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1382 states. [2022-03-15 15:24:18,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1382 to 1238. [2022-03-15 15:24:18,856 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) [2022-03-15 15:24:18,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1238 states to 1238 states and 3362 transitions. [2022-03-15 15:24:18,857 INFO L78 Accepts]: Start accepts. Automaton has 1238 states and 3362 transitions. Word has length 26 [2022-03-15 15:24:18,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:18,857 INFO L470 AbstractCegarLoop]: Abstraction has 1238 states and 3362 transitions. [2022-03-15 15:24:18,858 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) [2022-03-15 15:24:18,858 INFO L276 IsEmpty]: Start isEmpty. Operand 1238 states and 3362 transitions. [2022-03-15 15:24:18,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:18,859 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:18,859 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:18,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable258 [2022-03-15 15:24:18,859 INFO L402 AbstractCegarLoop]: === Iteration 260 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:18,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:18,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1568050315, now seen corresponding path program 258 times [2022-03-15 15:24:18,859 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:18,859 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036753358] [2022-03-15 15:24:18,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:18,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:18,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:18,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:18,937 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:18,937 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036753358] [2022-03-15 15:24:18,937 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036753358] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:18,937 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:18,937 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:18,937 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697077120] [2022-03-15 15:24:18,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:18,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:18,937 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:18,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:18,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:18,937 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) [2022-03-15 15:24:19,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:19,166 INFO L93 Difference]: Finished difference Result 1375 states and 3707 transitions. [2022-03-15 15:24:19,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:19,166 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:19,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:19,168 INFO L225 Difference]: With dead ends: 1375 [2022-03-15 15:24:19,168 INFO L226 Difference]: Without dead ends: 1294 [2022-03-15 15:24:19,168 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 [2022-03-15 15:24:19,168 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 [2022-03-15 15:24:19,168 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] [2022-03-15 15:24:19,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1294 states. [2022-03-15 15:24:19,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1294 to 1242. [2022-03-15 15:24:19,178 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) [2022-03-15 15:24:19,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1242 states to 1242 states and 3377 transitions. [2022-03-15 15:24:19,180 INFO L78 Accepts]: Start accepts. Automaton has 1242 states and 3377 transitions. Word has length 26 [2022-03-15 15:24:19,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:19,180 INFO L470 AbstractCegarLoop]: Abstraction has 1242 states and 3377 transitions. [2022-03-15 15:24:19,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:19,180 INFO L276 IsEmpty]: Start isEmpty. Operand 1242 states and 3377 transitions. [2022-03-15 15:24:19,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:19,181 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:19,181 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:19,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable259 [2022-03-15 15:24:19,182 INFO L402 AbstractCegarLoop]: === Iteration 261 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:19,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:19,182 INFO L85 PathProgramCache]: Analyzing trace with hash -368250611, now seen corresponding path program 259 times [2022-03-15 15:24:19,182 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:19,182 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619607950] [2022-03-15 15:24:19,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:19,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:19,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:19,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:19,252 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:19,252 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619607950] [2022-03-15 15:24:19,252 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619607950] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:19,252 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:19,252 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:19,252 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605569759] [2022-03-15 15:24:19,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:19,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:19,252 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:19,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:19,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:19,252 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) [2022-03-15 15:24:19,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:19,491 INFO L93 Difference]: Finished difference Result 1385 states and 3725 transitions. [2022-03-15 15:24:19,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:19,491 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:19,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:19,493 INFO L225 Difference]: With dead ends: 1385 [2022-03-15 15:24:19,493 INFO L226 Difference]: Without dead ends: 1288 [2022-03-15 15:24:19,493 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:19,493 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 [2022-03-15 15:24:19,493 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] [2022-03-15 15:24:19,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1288 states. [2022-03-15 15:24:19,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1288 to 1243. [2022-03-15 15:24:19,503 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) [2022-03-15 15:24:19,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1243 states to 1243 states and 3379 transitions. [2022-03-15 15:24:19,505 INFO L78 Accepts]: Start accepts. Automaton has 1243 states and 3379 transitions. Word has length 26 [2022-03-15 15:24:19,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:19,505 INFO L470 AbstractCegarLoop]: Abstraction has 1243 states and 3379 transitions. [2022-03-15 15:24:19,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:19,505 INFO L276 IsEmpty]: Start isEmpty. Operand 1243 states and 3379 transitions. [2022-03-15 15:24:19,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:19,506 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:19,506 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] [2022-03-15 15:24:19,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable260 [2022-03-15 15:24:19,507 INFO L402 AbstractCegarLoop]: === Iteration 262 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:19,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:19,507 INFO L85 PathProgramCache]: Analyzing trace with hash -878227, now seen corresponding path program 260 times [2022-03-15 15:24:19,507 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:19,507 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167101920] [2022-03-15 15:24:19,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:19,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:19,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:19,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:19,576 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:19,576 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167101920] [2022-03-15 15:24:19,576 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167101920] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:19,576 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:19,576 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:19,577 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854408281] [2022-03-15 15:24:19,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:19,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:19,577 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:19,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:19,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:19,577 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) [2022-03-15 15:24:19,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:19,800 INFO L93 Difference]: Finished difference Result 1363 states and 3672 transitions. [2022-03-15 15:24:19,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:19,801 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:19,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:19,802 INFO L225 Difference]: With dead ends: 1363 [2022-03-15 15:24:19,802 INFO L226 Difference]: Without dead ends: 1274 [2022-03-15 15:24:19,802 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:19,803 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 [2022-03-15 15:24:19,803 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] [2022-03-15 15:24:19,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1274 states. [2022-03-15 15:24:19,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1274 to 1247. [2022-03-15 15:24:19,813 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) [2022-03-15 15:24:19,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1247 states to 1247 states and 3390 transitions. [2022-03-15 15:24:19,814 INFO L78 Accepts]: Start accepts. Automaton has 1247 states and 3390 transitions. Word has length 26 [2022-03-15 15:24:19,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:19,814 INFO L470 AbstractCegarLoop]: Abstraction has 1247 states and 3390 transitions. [2022-03-15 15:24:19,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:19,815 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states and 3390 transitions. [2022-03-15 15:24:19,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:19,816 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:19,816 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] [2022-03-15 15:24:19,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable261 [2022-03-15 15:24:19,816 INFO L402 AbstractCegarLoop]: === Iteration 263 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:19,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:19,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1670741515, now seen corresponding path program 261 times [2022-03-15 15:24:19,816 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:19,816 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711665968] [2022-03-15 15:24:19,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:19,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:19,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:19,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:19,904 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:19,904 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711665968] [2022-03-15 15:24:19,904 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711665968] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:19,904 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:19,904 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:19,904 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595717122] [2022-03-15 15:24:19,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:19,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:19,905 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:19,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:19,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:19,905 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) [2022-03-15 15:24:20,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:20,144 INFO L93 Difference]: Finished difference Result 1378 states and 3704 transitions. [2022-03-15 15:24:20,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:20,145 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:20,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:20,146 INFO L225 Difference]: With dead ends: 1378 [2022-03-15 15:24:20,146 INFO L226 Difference]: Without dead ends: 1269 [2022-03-15 15:24:20,147 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 [2022-03-15 15:24:20,147 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 [2022-03-15 15:24:20,147 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] [2022-03-15 15:24:20,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1269 states. [2022-03-15 15:24:20,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1269 to 1243. [2022-03-15 15:24:20,157 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) [2022-03-15 15:24:20,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1243 states to 1243 states and 3376 transitions. [2022-03-15 15:24:20,159 INFO L78 Accepts]: Start accepts. Automaton has 1243 states and 3376 transitions. Word has length 26 [2022-03-15 15:24:20,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:20,159 INFO L470 AbstractCegarLoop]: Abstraction has 1243 states and 3376 transitions. [2022-03-15 15:24:20,159 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:20,159 INFO L276 IsEmpty]: Start isEmpty. Operand 1243 states and 3376 transitions. [2022-03-15 15:24:20,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:20,160 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:20,160 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] [2022-03-15 15:24:20,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable262 [2022-03-15 15:24:20,160 INFO L402 AbstractCegarLoop]: === Iteration 264 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:20,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:20,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1361242349, now seen corresponding path program 262 times [2022-03-15 15:24:20,161 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:20,161 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103546871] [2022-03-15 15:24:20,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:20,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:20,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:20,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:20,230 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:20,230 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103546871] [2022-03-15 15:24:20,230 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103546871] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:20,230 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:20,230 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:20,230 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443709024] [2022-03-15 15:24:20,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:20,231 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:20,231 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:20,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:20,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:20,231 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) [2022-03-15 15:24:20,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:20,457 INFO L93 Difference]: Finished difference Result 1384 states and 3725 transitions. [2022-03-15 15:24:20,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:20,457 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 [2022-03-15 15:24:20,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:20,459 INFO L225 Difference]: With dead ends: 1384 [2022-03-15 15:24:20,459 INFO L226 Difference]: Without dead ends: 1303 [2022-03-15 15:24:20,459 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 [2022-03-15 15:24:20,459 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 [2022-03-15 15:24:20,459 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] [2022-03-15 15:24:20,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1303 states. [2022-03-15 15:24:20,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1303 to 1245. [2022-03-15 15:24:20,469 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) [2022-03-15 15:24:20,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1245 states to 1245 states and 3383 transitions. [2022-03-15 15:24:20,480 INFO L78 Accepts]: Start accepts. Automaton has 1245 states and 3383 transitions. Word has length 26 [2022-03-15 15:24:20,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:20,480 INFO L470 AbstractCegarLoop]: Abstraction has 1245 states and 3383 transitions. [2022-03-15 15:24:20,481 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) [2022-03-15 15:24:20,481 INFO L276 IsEmpty]: Start isEmpty. Operand 1245 states and 3383 transitions. [2022-03-15 15:24:20,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:20,482 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:20,482 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] [2022-03-15 15:24:20,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable263 [2022-03-15 15:24:20,482 INFO L402 AbstractCegarLoop]: === Iteration 265 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:20,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:20,482 INFO L85 PathProgramCache]: Analyzing trace with hash -575058577, now seen corresponding path program 263 times [2022-03-15 15:24:20,482 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:20,482 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647192279] [2022-03-15 15:24:20,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:20,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:20,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:20,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:20,564 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:20,564 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647192279] [2022-03-15 15:24:20,564 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647192279] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:20,564 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:20,565 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:20,565 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794280881] [2022-03-15 15:24:20,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:20,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:20,565 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:20,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:20,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:20,565 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) [2022-03-15 15:24:20,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:20,807 INFO L93 Difference]: Finished difference Result 1389 states and 3727 transitions. [2022-03-15 15:24:20,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:20,807 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:20,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:20,809 INFO L225 Difference]: With dead ends: 1389 [2022-03-15 15:24:20,809 INFO L226 Difference]: Without dead ends: 1292 [2022-03-15 15:24:20,809 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 [2022-03-15 15:24:20,809 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 [2022-03-15 15:24:20,810 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] [2022-03-15 15:24:20,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1292 states. [2022-03-15 15:24:20,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1292 to 1241. [2022-03-15 15:24:20,820 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) [2022-03-15 15:24:20,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1241 states to 1241 states and 3368 transitions. [2022-03-15 15:24:20,821 INFO L78 Accepts]: Start accepts. Automaton has 1241 states and 3368 transitions. Word has length 26 [2022-03-15 15:24:20,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:20,822 INFO L470 AbstractCegarLoop]: Abstraction has 1241 states and 3368 transitions. [2022-03-15 15:24:20,822 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) [2022-03-15 15:24:20,822 INFO L276 IsEmpty]: Start isEmpty. Operand 1241 states and 3368 transitions. [2022-03-15 15:24:20,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:20,823 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:20,823 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:20,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable264 [2022-03-15 15:24:20,823 INFO L402 AbstractCegarLoop]: === Iteration 266 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:20,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:20,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1232222099, now seen corresponding path program 264 times [2022-03-15 15:24:20,824 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:20,824 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598642630] [2022-03-15 15:24:20,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:20,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:20,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:20,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:20,896 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:20,896 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598642630] [2022-03-15 15:24:20,896 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598642630] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:20,896 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:20,896 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:20,896 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39728536] [2022-03-15 15:24:20,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:20,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:20,896 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:20,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:20,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:20,896 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) [2022-03-15 15:24:21,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:21,121 INFO L93 Difference]: Finished difference Result 1366 states and 3673 transitions. [2022-03-15 15:24:21,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:21,122 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:21,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:21,124 INFO L225 Difference]: With dead ends: 1366 [2022-03-15 15:24:21,124 INFO L226 Difference]: Without dead ends: 1279 [2022-03-15 15:24:21,124 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:21,124 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 [2022-03-15 15:24:21,124 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] [2022-03-15 15:24:21,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1279 states. [2022-03-15 15:24:21,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1279 to 1242. [2022-03-15 15:24:21,137 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) [2022-03-15 15:24:21,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1242 states to 1242 states and 3369 transitions. [2022-03-15 15:24:21,140 INFO L78 Accepts]: Start accepts. Automaton has 1242 states and 3369 transitions. Word has length 26 [2022-03-15 15:24:21,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:21,140 INFO L470 AbstractCegarLoop]: Abstraction has 1242 states and 3369 transitions. [2022-03-15 15:24:21,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:21,140 INFO L276 IsEmpty]: Start isEmpty. Operand 1242 states and 3369 transitions. [2022-03-15 15:24:21,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:21,142 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:21,142 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:21,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable265 [2022-03-15 15:24:21,142 INFO L402 AbstractCegarLoop]: === Iteration 267 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:21,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:21,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1734179275, now seen corresponding path program 265 times [2022-03-15 15:24:21,142 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:21,142 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641136952] [2022-03-15 15:24:21,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:21,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:21,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:21,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:21,224 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:21,224 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641136952] [2022-03-15 15:24:21,224 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641136952] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:21,224 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:21,224 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:21,224 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325337157] [2022-03-15 15:24:21,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:21,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:21,224 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:21,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:21,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:21,225 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) [2022-03-15 15:24:21,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:21,472 INFO L93 Difference]: Finished difference Result 1386 states and 3719 transitions. [2022-03-15 15:24:21,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:21,473 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:21,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:21,475 INFO L225 Difference]: With dead ends: 1386 [2022-03-15 15:24:21,475 INFO L226 Difference]: Without dead ends: 1281 [2022-03-15 15:24:21,475 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 [2022-03-15 15:24:21,475 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 [2022-03-15 15:24:21,475 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] [2022-03-15 15:24:21,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1281 states. [2022-03-15 15:24:21,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1281 to 1236. [2022-03-15 15:24:21,489 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) [2022-03-15 15:24:21,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1236 states to 1236 states and 3354 transitions. [2022-03-15 15:24:21,491 INFO L78 Accepts]: Start accepts. Automaton has 1236 states and 3354 transitions. Word has length 26 [2022-03-15 15:24:21,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:21,491 INFO L470 AbstractCegarLoop]: Abstraction has 1236 states and 3354 transitions. [2022-03-15 15:24:21,491 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) [2022-03-15 15:24:21,491 INFO L276 IsEmpty]: Start isEmpty. Operand 1236 states and 3354 transitions. [2022-03-15 15:24:21,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:21,493 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:21,493 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:21,493 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable266 [2022-03-15 15:24:21,493 INFO L402 AbstractCegarLoop]: === Iteration 268 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:21,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:21,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1511539919, now seen corresponding path program 266 times [2022-03-15 15:24:21,493 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:21,494 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395253059] [2022-03-15 15:24:21,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:21,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:21,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:21,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:21,564 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:21,564 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395253059] [2022-03-15 15:24:21,564 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395253059] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:21,564 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:21,564 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:21,564 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813986416] [2022-03-15 15:24:21,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:21,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:21,564 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:21,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:21,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:21,565 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) [2022-03-15 15:24:21,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:21,778 INFO L93 Difference]: Finished difference Result 1442 states and 3908 transitions. [2022-03-15 15:24:21,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:21,778 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:21,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:21,780 INFO L225 Difference]: With dead ends: 1442 [2022-03-15 15:24:21,780 INFO L226 Difference]: Without dead ends: 1351 [2022-03-15 15:24:21,780 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:21,780 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 43 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:24:21,780 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] [2022-03-15 15:24:21,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1351 states. [2022-03-15 15:24:21,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1351 to 1238. [2022-03-15 15:24:21,790 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) [2022-03-15 15:24:21,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1238 states to 1238 states and 3356 transitions. [2022-03-15 15:24:21,792 INFO L78 Accepts]: Start accepts. Automaton has 1238 states and 3356 transitions. Word has length 26 [2022-03-15 15:24:21,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:21,792 INFO L470 AbstractCegarLoop]: Abstraction has 1238 states and 3356 transitions. [2022-03-15 15:24:21,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:21,792 INFO L276 IsEmpty]: Start isEmpty. Operand 1238 states and 3356 transitions. [2022-03-15 15:24:21,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:21,793 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:21,793 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:21,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable267 [2022-03-15 15:24:21,794 INFO L402 AbstractCegarLoop]: === Iteration 269 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:21,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:21,794 INFO L85 PathProgramCache]: Analyzing trace with hash 119395373, now seen corresponding path program 267 times [2022-03-15 15:24:21,794 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:21,794 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364491842] [2022-03-15 15:24:21,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:21,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:21,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:21,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:21,864 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:21,864 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364491842] [2022-03-15 15:24:21,864 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364491842] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:21,864 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:21,864 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:21,864 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470145030] [2022-03-15 15:24:21,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:21,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:21,864 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:21,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:21,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:21,865 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) [2022-03-15 15:24:22,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:22,093 INFO L93 Difference]: Finished difference Result 1473 states and 3992 transitions. [2022-03-15 15:24:22,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:22,094 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:22,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:22,095 INFO L225 Difference]: With dead ends: 1473 [2022-03-15 15:24:22,095 INFO L226 Difference]: Without dead ends: 1381 [2022-03-15 15:24:22,096 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:22,096 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 [2022-03-15 15:24:22,096 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] [2022-03-15 15:24:22,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1381 states. [2022-03-15 15:24:22,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1381 to 1234. [2022-03-15 15:24:22,106 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) [2022-03-15 15:24:22,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1234 states to 1234 states and 3342 transitions. [2022-03-15 15:24:22,108 INFO L78 Accepts]: Start accepts. Automaton has 1234 states and 3342 transitions. Word has length 26 [2022-03-15 15:24:22,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:22,108 INFO L470 AbstractCegarLoop]: Abstraction has 1234 states and 3342 transitions. [2022-03-15 15:24:22,108 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:22,108 INFO L276 IsEmpty]: Start isEmpty. Operand 1234 states and 3342 transitions. [2022-03-15 15:24:22,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:22,109 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:22,109 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:22,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable268 [2022-03-15 15:24:22,109 INFO L402 AbstractCegarLoop]: === Iteration 270 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:22,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:22,109 INFO L85 PathProgramCache]: Analyzing trace with hash 714043953, now seen corresponding path program 268 times [2022-03-15 15:24:22,109 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:22,110 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459547911] [2022-03-15 15:24:22,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:22,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:22,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:22,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:22,170 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:22,170 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459547911] [2022-03-15 15:24:22,170 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459547911] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:22,170 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:22,170 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:24:22,170 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186217835] [2022-03-15 15:24:22,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:22,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:24:22,170 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:22,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:24:22,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:24:22,171 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) [2022-03-15 15:24:22,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:22,349 INFO L93 Difference]: Finished difference Result 1450 states and 3914 transitions. [2022-03-15 15:24:22,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:24:22,350 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 [2022-03-15 15:24:22,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:22,352 INFO L225 Difference]: With dead ends: 1450 [2022-03-15 15:24:22,352 INFO L226 Difference]: Without dead ends: 1359 [2022-03-15 15:24:22,352 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 [2022-03-15 15:24:22,352 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, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:24:22,352 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 211 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:24:22,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1359 states. [2022-03-15 15:24:22,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1359 to 1260. [2022-03-15 15:24:22,367 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) [2022-03-15 15:24:22,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1260 states to 1260 states and 3414 transitions. [2022-03-15 15:24:22,369 INFO L78 Accepts]: Start accepts. Automaton has 1260 states and 3414 transitions. Word has length 26 [2022-03-15 15:24:22,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:22,370 INFO L470 AbstractCegarLoop]: Abstraction has 1260 states and 3414 transitions. [2022-03-15 15:24:22,370 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) [2022-03-15 15:24:22,370 INFO L276 IsEmpty]: Start isEmpty. Operand 1260 states and 3414 transitions. [2022-03-15 15:24:22,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:22,371 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:22,372 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:22,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable269 [2022-03-15 15:24:22,372 INFO L402 AbstractCegarLoop]: === Iteration 271 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:22,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:22,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1222256973, now seen corresponding path program 269 times [2022-03-15 15:24:22,372 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:22,372 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760482330] [2022-03-15 15:24:22,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:22,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:22,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:22,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:22,457 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:22,457 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760482330] [2022-03-15 15:24:22,457 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760482330] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:22,457 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:22,458 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:22,458 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272779328] [2022-03-15 15:24:22,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:22,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:22,458 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:22,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:22,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:22,458 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) [2022-03-15 15:24:22,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:22,699 INFO L93 Difference]: Finished difference Result 1501 states and 4029 transitions. [2022-03-15 15:24:22,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:22,699 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:22,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:22,701 INFO L225 Difference]: With dead ends: 1501 [2022-03-15 15:24:22,701 INFO L226 Difference]: Without dead ends: 1304 [2022-03-15 15:24:22,701 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 [2022-03-15 15:24:22,701 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 [2022-03-15 15:24:22,701 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] [2022-03-15 15:24:22,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1304 states. [2022-03-15 15:24:22,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1304 to 1244. [2022-03-15 15:24:22,712 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) [2022-03-15 15:24:22,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1244 states to 1244 states and 3349 transitions. [2022-03-15 15:24:22,714 INFO L78 Accepts]: Start accepts. Automaton has 1244 states and 3349 transitions. Word has length 26 [2022-03-15 15:24:22,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:22,714 INFO L470 AbstractCegarLoop]: Abstraction has 1244 states and 3349 transitions. [2022-03-15 15:24:22,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:22,714 INFO L276 IsEmpty]: Start isEmpty. Operand 1244 states and 3349 transitions. [2022-03-15 15:24:22,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:22,715 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:22,715 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:22,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable270 [2022-03-15 15:24:22,715 INFO L402 AbstractCegarLoop]: === Iteration 272 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:22,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:22,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1003696817, now seen corresponding path program 270 times [2022-03-15 15:24:22,716 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:22,716 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044820124] [2022-03-15 15:24:22,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:22,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:22,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:22,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:22,785 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:22,785 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044820124] [2022-03-15 15:24:22,785 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044820124] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:22,785 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:22,785 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:22,785 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916702605] [2022-03-15 15:24:22,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:22,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:22,785 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:22,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:22,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:22,786 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) [2022-03-15 15:24:23,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:23,009 INFO L93 Difference]: Finished difference Result 1399 states and 3720 transitions. [2022-03-15 15:24:23,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:23,009 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 [2022-03-15 15:24:23,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:23,011 INFO L225 Difference]: With dead ends: 1399 [2022-03-15 15:24:23,011 INFO L226 Difference]: Without dead ends: 1304 [2022-03-15 15:24:23,011 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 [2022-03-15 15:24:23,011 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 [2022-03-15 15:24:23,012 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] [2022-03-15 15:24:23,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1304 states. [2022-03-15 15:24:23,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1304 to 1244. [2022-03-15 15:24:23,022 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) [2022-03-15 15:24:23,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1244 states to 1244 states and 3349 transitions. [2022-03-15 15:24:23,023 INFO L78 Accepts]: Start accepts. Automaton has 1244 states and 3349 transitions. Word has length 26 [2022-03-15 15:24:23,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:23,023 INFO L470 AbstractCegarLoop]: Abstraction has 1244 states and 3349 transitions. [2022-03-15 15:24:23,023 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) [2022-03-15 15:24:23,024 INFO L276 IsEmpty]: Start isEmpty. Operand 1244 states and 3349 transitions. [2022-03-15 15:24:23,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:23,025 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:23,025 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:23,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable271 [2022-03-15 15:24:23,025 INFO L402 AbstractCegarLoop]: === Iteration 273 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:23,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:23,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1354969553, now seen corresponding path program 271 times [2022-03-15 15:24:23,025 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:23,025 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566501585] [2022-03-15 15:24:23,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:23,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:23,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:23,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:23,094 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:23,094 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566501585] [2022-03-15 15:24:23,094 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566501585] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:23,094 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:23,094 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:23,094 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134197508] [2022-03-15 15:24:23,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:23,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:23,095 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:23,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:23,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:23,095 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) [2022-03-15 15:24:23,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:23,335 INFO L93 Difference]: Finished difference Result 1389 states and 3693 transitions. [2022-03-15 15:24:23,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:23,335 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:23,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:23,337 INFO L225 Difference]: With dead ends: 1389 [2022-03-15 15:24:23,337 INFO L226 Difference]: Without dead ends: 1292 [2022-03-15 15:24:23,337 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:23,337 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 [2022-03-15 15:24:23,337 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] [2022-03-15 15:24:23,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1292 states. [2022-03-15 15:24:23,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1292 to 1244. [2022-03-15 15:24:23,351 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) [2022-03-15 15:24:23,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1244 states to 1244 states and 3347 transitions. [2022-03-15 15:24:23,353 INFO L78 Accepts]: Start accepts. Automaton has 1244 states and 3347 transitions. Word has length 26 [2022-03-15 15:24:23,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:23,354 INFO L470 AbstractCegarLoop]: Abstraction has 1244 states and 3347 transitions. [2022-03-15 15:24:23,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:23,354 INFO L276 IsEmpty]: Start isEmpty. Operand 1244 states and 3347 transitions. [2022-03-15 15:24:23,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:23,356 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:23,356 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] [2022-03-15 15:24:23,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable272 [2022-03-15 15:24:23,356 INFO L402 AbstractCegarLoop]: === Iteration 274 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:23,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:23,356 INFO L85 PathProgramCache]: Analyzing trace with hash 52478649, now seen corresponding path program 272 times [2022-03-15 15:24:23,356 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:23,356 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325146655] [2022-03-15 15:24:23,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:23,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:23,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:23,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:23,430 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:23,430 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325146655] [2022-03-15 15:24:23,430 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325146655] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:23,430 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:23,430 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:23,430 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372615813] [2022-03-15 15:24:23,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:23,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:23,431 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:23,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:23,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:23,431 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) [2022-03-15 15:24:23,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:23,672 INFO L93 Difference]: Finished difference Result 1371 states and 3646 transitions. [2022-03-15 15:24:23,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:23,672 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:23,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:23,674 INFO L225 Difference]: With dead ends: 1371 [2022-03-15 15:24:23,674 INFO L226 Difference]: Without dead ends: 1266 [2022-03-15 15:24:23,675 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:23,675 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 [2022-03-15 15:24:23,675 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] [2022-03-15 15:24:23,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1266 states. [2022-03-15 15:24:23,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1266 to 1232. [2022-03-15 15:24:23,685 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) [2022-03-15 15:24:23,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1232 states to 1232 states and 3323 transitions. [2022-03-15 15:24:23,687 INFO L78 Accepts]: Start accepts. Automaton has 1232 states and 3323 transitions. Word has length 26 [2022-03-15 15:24:23,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:23,687 INFO L470 AbstractCegarLoop]: Abstraction has 1232 states and 3323 transitions. [2022-03-15 15:24:23,687 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:23,687 INFO L276 IsEmpty]: Start isEmpty. Operand 1232 states and 3323 transitions. [2022-03-15 15:24:23,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:23,688 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:23,688 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:23,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable273 [2022-03-15 15:24:23,688 INFO L402 AbstractCegarLoop]: === Iteration 275 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:23,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:23,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1402035697, now seen corresponding path program 273 times [2022-03-15 15:24:23,689 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:23,689 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149937626] [2022-03-15 15:24:23,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:23,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:23,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:23,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:23,750 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:23,750 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149937626] [2022-03-15 15:24:23,751 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149937626] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:23,751 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:23,751 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:24:23,751 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866566491] [2022-03-15 15:24:23,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:23,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:24:23,751 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:23,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:24:23,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:24:23,751 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) [2022-03-15 15:24:23,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:23,934 INFO L93 Difference]: Finished difference Result 1470 states and 3952 transitions. [2022-03-15 15:24:23,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:24:23,934 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 [2022-03-15 15:24:23,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:23,936 INFO L225 Difference]: With dead ends: 1470 [2022-03-15 15:24:23,936 INFO L226 Difference]: Without dead ends: 1389 [2022-03-15 15:24:23,936 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 [2022-03-15 15:24:23,937 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, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:24:23,937 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 216 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:24:23,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1389 states. [2022-03-15 15:24:23,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1389 to 1270. [2022-03-15 15:24:23,948 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) [2022-03-15 15:24:23,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1270 states to 1270 states and 3430 transitions. [2022-03-15 15:24:23,950 INFO L78 Accepts]: Start accepts. Automaton has 1270 states and 3430 transitions. Word has length 26 [2022-03-15 15:24:23,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:23,950 INFO L470 AbstractCegarLoop]: Abstraction has 1270 states and 3430 transitions. [2022-03-15 15:24:23,950 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) [2022-03-15 15:24:23,950 INFO L276 IsEmpty]: Start isEmpty. Operand 1270 states and 3430 transitions. [2022-03-15 15:24:23,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:23,951 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:23,951 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:23,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable274 [2022-03-15 15:24:23,951 INFO L402 AbstractCegarLoop]: === Iteration 276 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:23,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:23,952 INFO L85 PathProgramCache]: Analyzing trace with hash 956630673, now seen corresponding path program 274 times [2022-03-15 15:24:23,952 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:23,952 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843813686] [2022-03-15 15:24:23,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:23,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:23,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:24,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:24,044 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:24,044 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843813686] [2022-03-15 15:24:24,044 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843813686] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:24,044 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:24,044 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:24,044 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117197816] [2022-03-15 15:24:24,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:24,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:24,044 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:24,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:24,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:24,045 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) [2022-03-15 15:24:24,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:24,298 INFO L93 Difference]: Finished difference Result 1525 states and 4077 transitions. [2022-03-15 15:24:24,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:24,298 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:24,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:24,300 INFO L225 Difference]: With dead ends: 1525 [2022-03-15 15:24:24,300 INFO L226 Difference]: Without dead ends: 1330 [2022-03-15 15:24:24,300 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 [2022-03-15 15:24:24,300 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 [2022-03-15 15:24:24,300 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] [2022-03-15 15:24:24,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1330 states. [2022-03-15 15:24:24,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1330 to 1232. [2022-03-15 15:24:24,310 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) [2022-03-15 15:24:24,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1232 states to 1232 states and 3311 transitions. [2022-03-15 15:24:24,312 INFO L78 Accepts]: Start accepts. Automaton has 1232 states and 3311 transitions. Word has length 26 [2022-03-15 15:24:24,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:24,312 INFO L470 AbstractCegarLoop]: Abstraction has 1232 states and 3311 transitions. [2022-03-15 15:24:24,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:24,312 INFO L276 IsEmpty]: Start isEmpty. Operand 1232 states and 3311 transitions. [2022-03-15 15:24:24,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:24,313 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:24,313 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:24,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable275 [2022-03-15 15:24:24,314 INFO L402 AbstractCegarLoop]: === Iteration 277 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:24,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:24,314 INFO L85 PathProgramCache]: Analyzing trace with hash -520651185, now seen corresponding path program 275 times [2022-03-15 15:24:24,314 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:24,314 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467522511] [2022-03-15 15:24:24,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:24,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:24,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:24,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:24,383 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:24,383 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467522511] [2022-03-15 15:24:24,383 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467522511] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:24,383 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:24,383 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:24,383 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703619544] [2022-03-15 15:24:24,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:24,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:24,384 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:24,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:24,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:24,384 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) [2022-03-15 15:24:24,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:24,614 INFO L93 Difference]: Finished difference Result 1421 states and 3771 transitions. [2022-03-15 15:24:24,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:24,614 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:24,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:24,616 INFO L225 Difference]: With dead ends: 1421 [2022-03-15 15:24:24,616 INFO L226 Difference]: Without dead ends: 1334 [2022-03-15 15:24:24,616 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:24,616 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 [2022-03-15 15:24:24,616 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] [2022-03-15 15:24:24,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1334 states. [2022-03-15 15:24:24,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1334 to 1222. [2022-03-15 15:24:24,626 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) [2022-03-15 15:24:24,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1222 states to 1222 states and 3287 transitions. [2022-03-15 15:24:24,628 INFO L78 Accepts]: Start accepts. Automaton has 1222 states and 3287 transitions. Word has length 26 [2022-03-15 15:24:24,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:24,628 INFO L470 AbstractCegarLoop]: Abstraction has 1222 states and 3287 transitions. [2022-03-15 15:24:24,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:24,628 INFO L276 IsEmpty]: Start isEmpty. Operand 1222 states and 3287 transitions. [2022-03-15 15:24:24,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:24,629 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:24,629 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] [2022-03-15 15:24:24,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable276 [2022-03-15 15:24:24,629 INFO L402 AbstractCegarLoop]: === Iteration 278 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:24,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:24,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1838015185, now seen corresponding path program 276 times [2022-03-15 15:24:24,630 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:24,630 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798687392] [2022-03-15 15:24:24,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:24,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:24,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:24,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:24,700 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:24,700 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798687392] [2022-03-15 15:24:24,700 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798687392] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:24,700 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:24,700 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:24,700 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957538960] [2022-03-15 15:24:24,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:24,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:24,700 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:24,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:24,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:24,701 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) [2022-03-15 15:24:24,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:24,952 INFO L93 Difference]: Finished difference Result 1394 states and 3706 transitions. [2022-03-15 15:24:24,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:24,952 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:24,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:24,961 INFO L225 Difference]: With dead ends: 1394 [2022-03-15 15:24:24,961 INFO L226 Difference]: Without dead ends: 1297 [2022-03-15 15:24:24,961 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:24,961 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 [2022-03-15 15:24:24,961 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] [2022-03-15 15:24:24,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1297 states. [2022-03-15 15:24:24,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1297 to 1237. [2022-03-15 15:24:24,971 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) [2022-03-15 15:24:24,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1237 states to 1237 states and 3323 transitions. [2022-03-15 15:24:24,973 INFO L78 Accepts]: Start accepts. Automaton has 1237 states and 3323 transitions. Word has length 26 [2022-03-15 15:24:24,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:24,973 INFO L470 AbstractCegarLoop]: Abstraction has 1237 states and 3323 transitions. [2022-03-15 15:24:24,973 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) [2022-03-15 15:24:24,973 INFO L276 IsEmpty]: Start isEmpty. Operand 1237 states and 3323 transitions. [2022-03-15 15:24:24,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:24,974 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:24,974 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:24,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable277 [2022-03-15 15:24:24,975 INFO L402 AbstractCegarLoop]: === Iteration 279 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:24,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:24,975 INFO L85 PathProgramCache]: Analyzing trace with hash 918834063, now seen corresponding path program 277 times [2022-03-15 15:24:24,975 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:24,975 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690761974] [2022-03-15 15:24:24,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:24,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:24,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:25,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:25,044 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:25,044 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690761974] [2022-03-15 15:24:25,044 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690761974] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:25,044 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:25,044 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:25,044 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419786895] [2022-03-15 15:24:25,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:25,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:25,044 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:25,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:25,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:25,045 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) [2022-03-15 15:24:25,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:25,299 INFO L93 Difference]: Finished difference Result 1383 states and 3684 transitions. [2022-03-15 15:24:25,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:25,299 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:25,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:25,301 INFO L225 Difference]: With dead ends: 1383 [2022-03-15 15:24:25,301 INFO L226 Difference]: Without dead ends: 1281 [2022-03-15 15:24:25,301 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:25,301 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 [2022-03-15 15:24:25,301 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] [2022-03-15 15:24:25,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1281 states. [2022-03-15 15:24:25,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1281 to 1234. [2022-03-15 15:24:25,311 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) [2022-03-15 15:24:25,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1234 states to 1234 states and 3315 transitions. [2022-03-15 15:24:25,313 INFO L78 Accepts]: Start accepts. Automaton has 1234 states and 3315 transitions. Word has length 26 [2022-03-15 15:24:25,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:25,313 INFO L470 AbstractCegarLoop]: Abstraction has 1234 states and 3315 transitions. [2022-03-15 15:24:25,313 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:25,313 INFO L276 IsEmpty]: Start isEmpty. Operand 1234 states and 3315 transitions. [2022-03-15 15:24:25,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:25,314 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:25,314 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:25,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable278 [2022-03-15 15:24:25,315 INFO L402 AbstractCegarLoop]: === Iteration 280 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:25,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:25,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1815454421, now seen corresponding path program 278 times [2022-03-15 15:24:25,315 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:25,315 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777348047] [2022-03-15 15:24:25,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:25,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:25,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:25,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:25,384 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:25,384 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777348047] [2022-03-15 15:24:25,384 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777348047] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:25,384 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:25,384 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:25,384 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031485665] [2022-03-15 15:24:25,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:25,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:25,384 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:25,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:25,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:25,385 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) [2022-03-15 15:24:25,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:25,636 INFO L93 Difference]: Finished difference Result 1413 states and 3754 transitions. [2022-03-15 15:24:25,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:25,636 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:25,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:25,638 INFO L225 Difference]: With dead ends: 1413 [2022-03-15 15:24:25,638 INFO L226 Difference]: Without dead ends: 1284 [2022-03-15 15:24:25,639 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:25,639 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 [2022-03-15 15:24:25,639 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] [2022-03-15 15:24:25,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1284 states. [2022-03-15 15:24:25,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1284 to 1234. [2022-03-15 15:24:25,649 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) [2022-03-15 15:24:25,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1234 states to 1234 states and 3311 transitions. [2022-03-15 15:24:25,650 INFO L78 Accepts]: Start accepts. Automaton has 1234 states and 3311 transitions. Word has length 26 [2022-03-15 15:24:25,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:25,651 INFO L470 AbstractCegarLoop]: Abstraction has 1234 states and 3311 transitions. [2022-03-15 15:24:25,651 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) [2022-03-15 15:24:25,651 INFO L276 IsEmpty]: Start isEmpty. Operand 1234 states and 3311 transitions. [2022-03-15 15:24:25,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:25,652 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:25,652 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:25,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable279 [2022-03-15 15:24:25,652 INFO L402 AbstractCegarLoop]: === Iteration 281 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:25,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:25,652 INFO L85 PathProgramCache]: Analyzing trace with hash -728733203, now seen corresponding path program 279 times [2022-03-15 15:24:25,652 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:25,652 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996551143] [2022-03-15 15:24:25,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:25,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:25,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:25,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:25,735 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:25,735 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996551143] [2022-03-15 15:24:25,735 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996551143] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:25,735 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:25,735 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:25,735 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274267131] [2022-03-15 15:24:25,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:25,735 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:25,735 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:25,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:25,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:25,736 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) [2022-03-15 15:24:26,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:26,007 INFO L93 Difference]: Finished difference Result 1364 states and 3627 transitions. [2022-03-15 15:24:26,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:26,008 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:26,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:26,011 INFO L225 Difference]: With dead ends: 1364 [2022-03-15 15:24:26,011 INFO L226 Difference]: Without dead ends: 1283 [2022-03-15 15:24:26,011 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 [2022-03-15 15:24:26,011 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 15:24:26,011 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 219 Invalid, 619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 611 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 15:24:26,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1283 states. [2022-03-15 15:24:26,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1283 to 1235. [2022-03-15 15:24:26,025 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) [2022-03-15 15:24:26,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1235 states to 1235 states and 3315 transitions. [2022-03-15 15:24:26,028 INFO L78 Accepts]: Start accepts. Automaton has 1235 states and 3315 transitions. Word has length 26 [2022-03-15 15:24:26,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:26,028 INFO L470 AbstractCegarLoop]: Abstraction has 1235 states and 3315 transitions. [2022-03-15 15:24:26,028 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) [2022-03-15 15:24:26,028 INFO L276 IsEmpty]: Start isEmpty. Operand 1235 states and 3315 transitions. [2022-03-15 15:24:26,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:26,030 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:26,030 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:26,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable280 [2022-03-15 15:24:26,030 INFO L402 AbstractCegarLoop]: === Iteration 282 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:26,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:26,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1629933167, now seen corresponding path program 280 times [2022-03-15 15:24:26,030 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:26,030 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433679076] [2022-03-15 15:24:26,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:26,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:26,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:26,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:26,104 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:26,104 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433679076] [2022-03-15 15:24:26,104 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433679076] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:26,104 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:26,104 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:26,104 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199301209] [2022-03-15 15:24:26,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:26,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:26,105 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:26,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:26,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:26,105 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) [2022-03-15 15:24:26,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:26,344 INFO L93 Difference]: Finished difference Result 1374 states and 3654 transitions. [2022-03-15 15:24:26,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:26,345 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:26,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:26,346 INFO L225 Difference]: With dead ends: 1374 [2022-03-15 15:24:26,346 INFO L226 Difference]: Without dead ends: 1277 [2022-03-15 15:24:26,346 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 [2022-03-15 15:24:26,347 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 [2022-03-15 15:24:26,347 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] [2022-03-15 15:24:26,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1277 states. [2022-03-15 15:24:26,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1277 to 1236. [2022-03-15 15:24:26,357 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) [2022-03-15 15:24:26,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1236 states to 1236 states and 3317 transitions. [2022-03-15 15:24:26,358 INFO L78 Accepts]: Start accepts. Automaton has 1236 states and 3317 transitions. Word has length 26 [2022-03-15 15:24:26,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:26,358 INFO L470 AbstractCegarLoop]: Abstraction has 1236 states and 3317 transitions. [2022-03-15 15:24:26,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:26,358 INFO L276 IsEmpty]: Start isEmpty. Operand 1236 states and 3317 transitions. [2022-03-15 15:24:26,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:26,360 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:26,360 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:26,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable281 [2022-03-15 15:24:26,360 INFO L402 AbstractCegarLoop]: === Iteration 283 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:26,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:26,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1997305551, now seen corresponding path program 281 times [2022-03-15 15:24:26,360 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:26,360 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552747247] [2022-03-15 15:24:26,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:26,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:26,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:26,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:26,435 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:26,435 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552747247] [2022-03-15 15:24:26,435 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552747247] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:26,435 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:26,435 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:26,435 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021791768] [2022-03-15 15:24:26,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:26,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:26,435 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:26,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:26,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:26,435 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) [2022-03-15 15:24:26,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:26,655 INFO L93 Difference]: Finished difference Result 1361 states and 3614 transitions. [2022-03-15 15:24:26,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:26,655 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:26,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:26,657 INFO L225 Difference]: With dead ends: 1361 [2022-03-15 15:24:26,657 INFO L226 Difference]: Without dead ends: 1270 [2022-03-15 15:24:26,657 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 [2022-03-15 15:24:26,657 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 42 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:24:26,657 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] [2022-03-15 15:24:26,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1270 states. [2022-03-15 15:24:26,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1270 to 1230. [2022-03-15 15:24:26,667 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) [2022-03-15 15:24:26,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1230 states to 1230 states and 3293 transitions. [2022-03-15 15:24:26,668 INFO L78 Accepts]: Start accepts. Automaton has 1230 states and 3293 transitions. Word has length 26 [2022-03-15 15:24:26,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:26,668 INFO L470 AbstractCegarLoop]: Abstraction has 1230 states and 3293 transitions. [2022-03-15 15:24:26,668 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) [2022-03-15 15:24:26,669 INFO L276 IsEmpty]: Start isEmpty. Operand 1230 states and 3293 transitions. [2022-03-15 15:24:26,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:26,670 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:26,670 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:26,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable282 [2022-03-15 15:24:26,670 INFO L402 AbstractCegarLoop]: === Iteration 284 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:26,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:26,670 INFO L85 PathProgramCache]: Analyzing trace with hash 327442263, now seen corresponding path program 282 times [2022-03-15 15:24:26,670 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:26,670 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192077429] [2022-03-15 15:24:26,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:26,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:26,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:26,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:26,740 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:26,740 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192077429] [2022-03-15 15:24:26,740 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192077429] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:26,740 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:26,740 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:26,740 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179273694] [2022-03-15 15:24:26,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:26,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:26,740 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:26,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:26,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:26,740 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) [2022-03-15 15:24:26,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:26,981 INFO L93 Difference]: Finished difference Result 1343 states and 3570 transitions. [2022-03-15 15:24:26,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:26,981 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:26,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:26,982 INFO L225 Difference]: With dead ends: 1343 [2022-03-15 15:24:26,983 INFO L226 Difference]: Without dead ends: 1244 [2022-03-15 15:24:26,983 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:26,983 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 [2022-03-15 15:24:26,983 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] [2022-03-15 15:24:26,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1244 states. [2022-03-15 15:24:26,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1244 to 1229. [2022-03-15 15:24:26,993 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) [2022-03-15 15:24:26,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1229 states to 1229 states and 3292 transitions. [2022-03-15 15:24:26,994 INFO L78 Accepts]: Start accepts. Automaton has 1229 states and 3292 transitions. Word has length 26 [2022-03-15 15:24:26,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:26,994 INFO L470 AbstractCegarLoop]: Abstraction has 1229 states and 3292 transitions. [2022-03-15 15:24:26,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:26,994 INFO L276 IsEmpty]: Start isEmpty. Operand 1229 states and 3292 transitions. [2022-03-15 15:24:26,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:26,996 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:26,996 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:26,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable283 [2022-03-15 15:24:26,996 INFO L402 AbstractCegarLoop]: === Iteration 285 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:26,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:26,996 INFO L85 PathProgramCache]: Analyzing trace with hash -935541169, now seen corresponding path program 283 times [2022-03-15 15:24:26,996 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:26,996 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093313641] [2022-03-15 15:24:26,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:26,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:26,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:27,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:27,065 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:27,065 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093313641] [2022-03-15 15:24:27,066 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093313641] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:27,066 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:27,066 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:27,066 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919217582] [2022-03-15 15:24:27,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:27,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:27,066 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:27,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:27,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:27,066 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) [2022-03-15 15:24:27,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:27,289 INFO L93 Difference]: Finished difference Result 1364 states and 3621 transitions. [2022-03-15 15:24:27,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:27,289 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:27,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:27,291 INFO L225 Difference]: With dead ends: 1364 [2022-03-15 15:24:27,291 INFO L226 Difference]: Without dead ends: 1283 [2022-03-15 15:24:27,291 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:27,291 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 [2022-03-15 15:24:27,291 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] [2022-03-15 15:24:27,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1283 states. [2022-03-15 15:24:27,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1283 to 1229. [2022-03-15 15:24:27,301 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) [2022-03-15 15:24:27,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1229 states to 1229 states and 3294 transitions. [2022-03-15 15:24:27,303 INFO L78 Accepts]: Start accepts. Automaton has 1229 states and 3294 transitions. Word has length 26 [2022-03-15 15:24:27,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:27,303 INFO L470 AbstractCegarLoop]: Abstraction has 1229 states and 3294 transitions. [2022-03-15 15:24:27,303 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) [2022-03-15 15:24:27,303 INFO L276 IsEmpty]: Start isEmpty. Operand 1229 states and 3294 transitions. [2022-03-15 15:24:27,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:27,304 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:27,304 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] [2022-03-15 15:24:27,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable284 [2022-03-15 15:24:27,305 INFO L402 AbstractCegarLoop]: === Iteration 286 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:27,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:27,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1423125201, now seen corresponding path program 284 times [2022-03-15 15:24:27,305 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:27,305 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601775015] [2022-03-15 15:24:27,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:27,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:27,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:27,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:27,376 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:27,376 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601775015] [2022-03-15 15:24:27,376 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601775015] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:27,376 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:27,376 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:27,376 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493126783] [2022-03-15 15:24:27,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:27,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:27,376 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:27,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:27,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:27,377 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) [2022-03-15 15:24:27,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:27,620 INFO L93 Difference]: Finished difference Result 1372 states and 3640 transitions. [2022-03-15 15:24:27,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:27,620 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:27,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:27,622 INFO L225 Difference]: With dead ends: 1372 [2022-03-15 15:24:27,622 INFO L226 Difference]: Without dead ends: 1275 [2022-03-15 15:24:27,622 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:27,623 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 [2022-03-15 15:24:27,623 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] [2022-03-15 15:24:27,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1275 states. [2022-03-15 15:24:27,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1275 to 1228. [2022-03-15 15:24:27,632 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) [2022-03-15 15:24:27,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1228 states to 1228 states and 3287 transitions. [2022-03-15 15:24:27,634 INFO L78 Accepts]: Start accepts. Automaton has 1228 states and 3287 transitions. Word has length 26 [2022-03-15 15:24:27,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:27,634 INFO L470 AbstractCegarLoop]: Abstraction has 1228 states and 3287 transitions. [2022-03-15 15:24:27,634 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) [2022-03-15 15:24:27,634 INFO L276 IsEmpty]: Start isEmpty. Operand 1228 states and 3287 transitions. [2022-03-15 15:24:27,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:27,636 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:27,636 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] [2022-03-15 15:24:27,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable285 [2022-03-15 15:24:27,636 INFO L402 AbstractCegarLoop]: === Iteration 287 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:27,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:27,636 INFO L85 PathProgramCache]: Analyzing trace with hash 765961679, now seen corresponding path program 285 times [2022-03-15 15:24:27,636 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:27,636 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085975365] [2022-03-15 15:24:27,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:27,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:27,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:27,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:27,718 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:27,718 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085975365] [2022-03-15 15:24:27,718 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085975365] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:27,718 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:27,718 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:27,718 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873999310] [2022-03-15 15:24:27,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:27,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:27,718 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:27,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:27,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:27,718 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) [2022-03-15 15:24:27,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:27,944 INFO L93 Difference]: Finished difference Result 1374 states and 3642 transitions. [2022-03-15 15:24:27,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:27,944 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:27,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:27,946 INFO L225 Difference]: With dead ends: 1374 [2022-03-15 15:24:27,946 INFO L226 Difference]: Without dead ends: 1287 [2022-03-15 15:24:27,946 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:27,946 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 [2022-03-15 15:24:27,946 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] [2022-03-15 15:24:27,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1287 states. [2022-03-15 15:24:27,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1287 to 1225. [2022-03-15 15:24:27,962 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) [2022-03-15 15:24:27,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1225 states to 1225 states and 3275 transitions. [2022-03-15 15:24:27,963 INFO L78 Accepts]: Start accepts. Automaton has 1225 states and 3275 transitions. Word has length 26 [2022-03-15 15:24:27,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:27,963 INFO L470 AbstractCegarLoop]: Abstraction has 1225 states and 3275 transitions. [2022-03-15 15:24:27,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:27,964 INFO L276 IsEmpty]: Start isEmpty. Operand 1225 states and 3275 transitions. [2022-03-15 15:24:27,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:27,965 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:27,965 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:27,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable286 [2022-03-15 15:24:27,965 INFO L402 AbstractCegarLoop]: === Iteration 288 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:27,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:27,965 INFO L85 PathProgramCache]: Analyzing trace with hash -562604243, now seen corresponding path program 286 times [2022-03-15 15:24:27,965 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:27,965 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200657621] [2022-03-15 15:24:27,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:27,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:27,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:28,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:28,035 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:28,035 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200657621] [2022-03-15 15:24:28,035 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200657621] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:28,035 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:28,036 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:28,036 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688150233] [2022-03-15 15:24:28,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:28,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:28,036 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:28,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:28,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:28,036 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) [2022-03-15 15:24:28,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:28,290 INFO L93 Difference]: Finished difference Result 1354 states and 3596 transitions. [2022-03-15 15:24:28,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:28,290 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:28,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:28,292 INFO L225 Difference]: With dead ends: 1354 [2022-03-15 15:24:28,292 INFO L226 Difference]: Without dead ends: 1252 [2022-03-15 15:24:28,292 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:28,292 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 [2022-03-15 15:24:28,293 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] [2022-03-15 15:24:28,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1252 states. [2022-03-15 15:24:28,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1252 to 1223. [2022-03-15 15:24:28,304 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) [2022-03-15 15:24:28,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1223 states to 1223 states and 3273 transitions. [2022-03-15 15:24:28,306 INFO L78 Accepts]: Start accepts. Automaton has 1223 states and 3273 transitions. Word has length 26 [2022-03-15 15:24:28,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:28,306 INFO L470 AbstractCegarLoop]: Abstraction has 1223 states and 3273 transitions. [2022-03-15 15:24:28,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:28,306 INFO L276 IsEmpty]: Start isEmpty. Operand 1223 states and 3273 transitions. [2022-03-15 15:24:28,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:28,308 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:28,308 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:28,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable287 [2022-03-15 15:24:28,308 INFO L402 AbstractCegarLoop]: === Iteration 289 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:28,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:28,308 INFO L85 PathProgramCache]: Analyzing trace with hash -735880775, now seen corresponding path program 287 times [2022-03-15 15:24:28,308 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:28,308 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211951607] [2022-03-15 15:24:28,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:28,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:28,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:28,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:28,379 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:28,379 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211951607] [2022-03-15 15:24:28,379 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211951607] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:28,379 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:28,379 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:28,380 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680076949] [2022-03-15 15:24:28,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:28,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:28,380 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:28,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:28,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:28,380 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) [2022-03-15 15:24:28,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:28,624 INFO L93 Difference]: Finished difference Result 1345 states and 3575 transitions. [2022-03-15 15:24:28,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:28,625 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 [2022-03-15 15:24:28,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:28,627 INFO L225 Difference]: With dead ends: 1345 [2022-03-15 15:24:28,627 INFO L226 Difference]: Without dead ends: 1248 [2022-03-15 15:24:28,627 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:28,627 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 [2022-03-15 15:24:28,627 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] [2022-03-15 15:24:28,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1248 states. [2022-03-15 15:24:28,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1248 to 1222. [2022-03-15 15:24:28,637 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) [2022-03-15 15:24:28,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1222 states to 1222 states and 3270 transitions. [2022-03-15 15:24:28,639 INFO L78 Accepts]: Start accepts. Automaton has 1222 states and 3270 transitions. Word has length 26 [2022-03-15 15:24:28,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:28,639 INFO L470 AbstractCegarLoop]: Abstraction has 1222 states and 3270 transitions. [2022-03-15 15:24:28,639 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) [2022-03-15 15:24:28,639 INFO L276 IsEmpty]: Start isEmpty. Operand 1222 states and 3270 transitions. [2022-03-15 15:24:28,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:28,640 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:28,640 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] [2022-03-15 15:24:28,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable288 [2022-03-15 15:24:28,640 INFO L402 AbstractCegarLoop]: === Iteration 290 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:28,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:28,641 INFO L85 PathProgramCache]: Analyzing trace with hash -2128025321, now seen corresponding path program 288 times [2022-03-15 15:24:28,641 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:28,641 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728430376] [2022-03-15 15:24:28,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:28,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:28,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:28,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:28,711 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:28,711 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728430376] [2022-03-15 15:24:28,711 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728430376] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:28,711 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:28,711 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:28,711 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688244319] [2022-03-15 15:24:28,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:28,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:28,711 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:28,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:28,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:28,711 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) [2022-03-15 15:24:28,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:28,960 INFO L93 Difference]: Finished difference Result 1347 states and 3575 transitions. [2022-03-15 15:24:28,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:28,960 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:28,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:28,962 INFO L225 Difference]: With dead ends: 1347 [2022-03-15 15:24:28,962 INFO L226 Difference]: Without dead ends: 1226 [2022-03-15 15:24:28,962 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:28,962 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 [2022-03-15 15:24:28,962 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] [2022-03-15 15:24:28,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1226 states. [2022-03-15 15:24:28,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1226 to 1190. [2022-03-15 15:24:28,972 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) [2022-03-15 15:24:28,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1190 states to 1190 states and 3194 transitions. [2022-03-15 15:24:28,974 INFO L78 Accepts]: Start accepts. Automaton has 1190 states and 3194 transitions. Word has length 26 [2022-03-15 15:24:28,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:28,974 INFO L470 AbstractCegarLoop]: Abstraction has 1190 states and 3194 transitions. [2022-03-15 15:24:28,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:28,974 INFO L276 IsEmpty]: Start isEmpty. Operand 1190 states and 3194 transitions. [2022-03-15 15:24:28,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:28,975 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:28,975 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:28,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable289 [2022-03-15 15:24:28,975 INFO L402 AbstractCegarLoop]: === Iteration 291 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:28,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:28,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1457225917, now seen corresponding path program 289 times [2022-03-15 15:24:28,975 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:28,975 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535647020] [2022-03-15 15:24:28,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:28,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:28,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:29,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:29,034 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:29,034 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535647020] [2022-03-15 15:24:29,034 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535647020] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:29,034 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:29,034 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:24:29,035 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157621687] [2022-03-15 15:24:29,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:29,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:24:29,035 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:29,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:24:29,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:24:29,035 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) [2022-03-15 15:24:29,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:29,236 INFO L93 Difference]: Finished difference Result 1469 states and 3888 transitions. [2022-03-15 15:24:29,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:24:29,236 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 [2022-03-15 15:24:29,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:29,238 INFO L225 Difference]: With dead ends: 1469 [2022-03-15 15:24:29,238 INFO L226 Difference]: Without dead ends: 1294 [2022-03-15 15:24:29,238 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 [2022-03-15 15:24:29,238 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 64 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 560 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:24:29,239 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] [2022-03-15 15:24:29,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1294 states. [2022-03-15 15:24:29,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1294 to 1264. [2022-03-15 15:24:29,248 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) [2022-03-15 15:24:29,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1264 states to 1264 states and 3363 transitions. [2022-03-15 15:24:29,250 INFO L78 Accepts]: Start accepts. Automaton has 1264 states and 3363 transitions. Word has length 26 [2022-03-15 15:24:29,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:29,250 INFO L470 AbstractCegarLoop]: Abstraction has 1264 states and 3363 transitions. [2022-03-15 15:24:29,250 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) [2022-03-15 15:24:29,250 INFO L276 IsEmpty]: Start isEmpty. Operand 1264 states and 3363 transitions. [2022-03-15 15:24:29,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:29,251 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:29,251 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] [2022-03-15 15:24:29,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable290 [2022-03-15 15:24:29,252 INFO L402 AbstractCegarLoop]: === Iteration 292 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:29,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:29,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1956652031, now seen corresponding path program 290 times [2022-03-15 15:24:29,252 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:29,252 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853380444] [2022-03-15 15:24:29,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:29,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:29,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:29,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:29,312 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:29,312 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853380444] [2022-03-15 15:24:29,312 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853380444] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:29,312 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:29,312 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:24:29,312 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677093992] [2022-03-15 15:24:29,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:29,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:24:29,312 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:29,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:24:29,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:24:29,312 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) [2022-03-15 15:24:29,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:29,517 INFO L93 Difference]: Finished difference Result 1463 states and 3865 transitions. [2022-03-15 15:24:29,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:24:29,517 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 [2022-03-15 15:24:29,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:29,519 INFO L225 Difference]: With dead ends: 1463 [2022-03-15 15:24:29,519 INFO L226 Difference]: Without dead ends: 1305 [2022-03-15 15:24:29,519 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 [2022-03-15 15:24:29,519 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 56 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 556 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:24:29,519 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] [2022-03-15 15:24:29,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1305 states. [2022-03-15 15:24:29,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1305 to 1277. [2022-03-15 15:24:29,529 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) [2022-03-15 15:24:29,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1277 states to 1277 states and 3382 transitions. [2022-03-15 15:24:29,531 INFO L78 Accepts]: Start accepts. Automaton has 1277 states and 3382 transitions. Word has length 26 [2022-03-15 15:24:29,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:29,531 INFO L470 AbstractCegarLoop]: Abstraction has 1277 states and 3382 transitions. [2022-03-15 15:24:29,531 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) [2022-03-15 15:24:29,531 INFO L276 IsEmpty]: Start isEmpty. Operand 1277 states and 3382 transitions. [2022-03-15 15:24:29,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:29,532 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:29,532 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:29,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable291 [2022-03-15 15:24:29,532 INFO L402 AbstractCegarLoop]: === Iteration 293 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:29,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:29,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1417739299, now seen corresponding path program 291 times [2022-03-15 15:24:29,532 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:29,532 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373663253] [2022-03-15 15:24:29,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:29,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:29,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:29,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:29,611 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:29,611 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373663253] [2022-03-15 15:24:29,611 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373663253] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:29,611 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:29,611 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:24:29,611 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756757457] [2022-03-15 15:24:29,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:29,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:24:29,611 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:29,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:24:29,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:24:29,611 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) [2022-03-15 15:24:29,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:29,813 INFO L93 Difference]: Finished difference Result 1480 states and 3886 transitions. [2022-03-15 15:24:29,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:24:29,813 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 [2022-03-15 15:24:29,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:29,814 INFO L225 Difference]: With dead ends: 1480 [2022-03-15 15:24:29,814 INFO L226 Difference]: Without dead ends: 1330 [2022-03-15 15:24:29,815 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 [2022-03-15 15:24:29,815 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 56 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:24:29,815 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] [2022-03-15 15:24:29,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1330 states. [2022-03-15 15:24:29,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1330 to 1268. [2022-03-15 15:24:29,827 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) [2022-03-15 15:24:29,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1268 states to 1268 states and 3355 transitions. [2022-03-15 15:24:29,828 INFO L78 Accepts]: Start accepts. Automaton has 1268 states and 3355 transitions. Word has length 26 [2022-03-15 15:24:29,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:29,828 INFO L470 AbstractCegarLoop]: Abstraction has 1268 states and 3355 transitions. [2022-03-15 15:24:29,828 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) [2022-03-15 15:24:29,829 INFO L276 IsEmpty]: Start isEmpty. Operand 1268 states and 3355 transitions. [2022-03-15 15:24:29,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:29,830 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:29,830 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:29,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable292 [2022-03-15 15:24:29,830 INFO L402 AbstractCegarLoop]: === Iteration 294 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:29,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:29,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1353621305, now seen corresponding path program 292 times [2022-03-15 15:24:29,830 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:29,830 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19616493] [2022-03-15 15:24:29,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:29,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:29,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:29,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:29,891 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:29,891 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19616493] [2022-03-15 15:24:29,891 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19616493] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:29,891 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:29,891 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:24:29,891 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320198242] [2022-03-15 15:24:29,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:29,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:24:29,891 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:29,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:24:29,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:24:29,892 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) [2022-03-15 15:24:30,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:30,087 INFO L93 Difference]: Finished difference Result 1405 states and 3686 transitions. [2022-03-15 15:24:30,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:24:30,088 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 [2022-03-15 15:24:30,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:30,089 INFO L225 Difference]: With dead ends: 1405 [2022-03-15 15:24:30,089 INFO L226 Difference]: Without dead ends: 1180 [2022-03-15 15:24:30,089 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 [2022-03-15 15:24:30,090 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 54 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:24:30,090 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] [2022-03-15 15:24:30,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1180 states. [2022-03-15 15:24:30,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1180 to 1124. [2022-03-15 15:24:30,099 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) [2022-03-15 15:24:30,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1124 states to 1124 states and 2972 transitions. [2022-03-15 15:24:30,100 INFO L78 Accepts]: Start accepts. Automaton has 1124 states and 2972 transitions. Word has length 26 [2022-03-15 15:24:30,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:30,100 INFO L470 AbstractCegarLoop]: Abstraction has 1124 states and 2972 transitions. [2022-03-15 15:24:30,100 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) [2022-03-15 15:24:30,101 INFO L276 IsEmpty]: Start isEmpty. Operand 1124 states and 2972 transitions. [2022-03-15 15:24:30,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:30,102 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:30,102 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:30,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable293 [2022-03-15 15:24:30,102 INFO L402 AbstractCegarLoop]: === Iteration 295 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:30,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:30,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1484127453, now seen corresponding path program 293 times [2022-03-15 15:24:30,102 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:30,102 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926093058] [2022-03-15 15:24:30,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:30,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:30,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:30,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:30,162 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:30,162 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926093058] [2022-03-15 15:24:30,162 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926093058] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:30,162 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:30,162 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:24:30,162 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513624699] [2022-03-15 15:24:30,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:30,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:24:30,162 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:30,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:24:30,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:24:30,162 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) [2022-03-15 15:24:30,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:30,366 INFO L93 Difference]: Finished difference Result 1284 states and 3343 transitions. [2022-03-15 15:24:30,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:24:30,366 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 [2022-03-15 15:24:30,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:30,367 INFO L225 Difference]: With dead ends: 1284 [2022-03-15 15:24:30,367 INFO L226 Difference]: Without dead ends: 1064 [2022-03-15 15:24:30,367 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 [2022-03-15 15:24:30,367 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 56 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 564 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:24:30,367 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] [2022-03-15 15:24:30,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1064 states. [2022-03-15 15:24:30,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1064 to 1040. [2022-03-15 15:24:30,376 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) [2022-03-15 15:24:30,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1040 states to 1040 states and 2714 transitions. [2022-03-15 15:24:30,377 INFO L78 Accepts]: Start accepts. Automaton has 1040 states and 2714 transitions. Word has length 26 [2022-03-15 15:24:30,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:30,377 INFO L470 AbstractCegarLoop]: Abstraction has 1040 states and 2714 transitions. [2022-03-15 15:24:30,377 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) [2022-03-15 15:24:30,377 INFO L276 IsEmpty]: Start isEmpty. Operand 1040 states and 2714 transitions. [2022-03-15 15:24:30,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:30,378 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:30,378 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] [2022-03-15 15:24:30,378 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable294 [2022-03-15 15:24:30,378 INFO L402 AbstractCegarLoop]: === Iteration 296 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:30,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:30,378 INFO L85 PathProgramCache]: Analyzing trace with hash -632141665, now seen corresponding path program 294 times [2022-03-15 15:24:30,379 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:30,379 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240030005] [2022-03-15 15:24:30,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:30,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:30,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:30,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:30,447 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:30,447 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240030005] [2022-03-15 15:24:30,447 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240030005] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:30,447 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:30,447 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:30,447 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168273651] [2022-03-15 15:24:30,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:30,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:30,448 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:30,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:30,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:30,448 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) [2022-03-15 15:24:30,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:30,695 INFO L93 Difference]: Finished difference Result 1182 states and 3054 transitions. [2022-03-15 15:24:30,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:30,696 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:30,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:30,697 INFO L225 Difference]: With dead ends: 1182 [2022-03-15 15:24:30,697 INFO L226 Difference]: Without dead ends: 982 [2022-03-15 15:24:30,697 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:30,697 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 [2022-03-15 15:24:30,698 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] [2022-03-15 15:24:30,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 982 states. [2022-03-15 15:24:30,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 982 to 950. [2022-03-15 15:24:30,705 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) [2022-03-15 15:24:30,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 950 states to 950 states and 2488 transitions. [2022-03-15 15:24:30,706 INFO L78 Accepts]: Start accepts. Automaton has 950 states and 2488 transitions. Word has length 26 [2022-03-15 15:24:30,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:30,706 INFO L470 AbstractCegarLoop]: Abstraction has 950 states and 2488 transitions. [2022-03-15 15:24:30,707 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:30,707 INFO L276 IsEmpty]: Start isEmpty. Operand 950 states and 2488 transitions. [2022-03-15 15:24:30,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:30,708 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:30,708 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:30,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable295 [2022-03-15 15:24:30,708 INFO L402 AbstractCegarLoop]: === Iteration 297 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:30,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:30,708 INFO L85 PathProgramCache]: Analyzing trace with hash 781640861, now seen corresponding path program 295 times [2022-03-15 15:24:30,708 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:30,708 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231334995] [2022-03-15 15:24:30,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:30,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:30,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:30,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:30,783 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:30,783 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231334995] [2022-03-15 15:24:30,783 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231334995] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:30,783 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:30,783 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:30,784 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774379543] [2022-03-15 15:24:30,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:30,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:30,784 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:30,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:30,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:30,784 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) [2022-03-15 15:24:31,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:31,029 INFO L93 Difference]: Finished difference Result 1068 states and 2776 transitions. [2022-03-15 15:24:31,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:31,029 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 [2022-03-15 15:24:31,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:31,030 INFO L225 Difference]: With dead ends: 1068 [2022-03-15 15:24:31,030 INFO L226 Difference]: Without dead ends: 975 [2022-03-15 15:24:31,031 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:31,031 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 [2022-03-15 15:24:31,031 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] [2022-03-15 15:24:31,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 975 states. [2022-03-15 15:24:31,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 975 to 956. [2022-03-15 15:24:31,038 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) [2022-03-15 15:24:31,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 956 states to 956 states and 2498 transitions. [2022-03-15 15:24:31,040 INFO L78 Accepts]: Start accepts. Automaton has 956 states and 2498 transitions. Word has length 26 [2022-03-15 15:24:31,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:31,040 INFO L470 AbstractCegarLoop]: Abstraction has 956 states and 2498 transitions. [2022-03-15 15:24:31,040 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:31,040 INFO L276 IsEmpty]: Start isEmpty. Operand 956 states and 2498 transitions. [2022-03-15 15:24:31,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:31,041 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:31,041 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:31,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable296 [2022-03-15 15:24:31,041 INFO L402 AbstractCegarLoop]: === Iteration 298 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:31,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:31,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1281066975, now seen corresponding path program 296 times [2022-03-15 15:24:31,041 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:31,041 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019510655] [2022-03-15 15:24:31,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:31,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:31,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:31,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:31,110 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:31,110 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019510655] [2022-03-15 15:24:31,110 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019510655] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:31,110 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:31,111 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:31,111 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726209805] [2022-03-15 15:24:31,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:31,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:31,111 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:31,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:31,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:31,111 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) [2022-03-15 15:24:31,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:31,350 INFO L93 Difference]: Finished difference Result 1078 states and 2806 transitions. [2022-03-15 15:24:31,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:31,351 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:31,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:31,352 INFO L225 Difference]: With dead ends: 1078 [2022-03-15 15:24:31,352 INFO L226 Difference]: Without dead ends: 1003 [2022-03-15 15:24:31,352 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:31,352 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 [2022-03-15 15:24:31,352 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] [2022-03-15 15:24:31,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003 states. [2022-03-15 15:24:31,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 959. [2022-03-15 15:24:31,360 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) [2022-03-15 15:24:31,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 959 states to 959 states and 2509 transitions. [2022-03-15 15:24:31,362 INFO L78 Accepts]: Start accepts. Automaton has 959 states and 2509 transitions. Word has length 26 [2022-03-15 15:24:31,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:31,362 INFO L470 AbstractCegarLoop]: Abstraction has 959 states and 2509 transitions. [2022-03-15 15:24:31,362 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) [2022-03-15 15:24:31,362 INFO L276 IsEmpty]: Start isEmpty. Operand 959 states and 2509 transitions. [2022-03-15 15:24:31,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:31,363 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:31,363 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] [2022-03-15 15:24:31,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable297 [2022-03-15 15:24:31,363 INFO L402 AbstractCegarLoop]: === Iteration 299 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:31,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:31,363 INFO L85 PathProgramCache]: Analyzing trace with hash -430274529, now seen corresponding path program 297 times [2022-03-15 15:24:31,363 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:31,363 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519056920] [2022-03-15 15:24:31,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:31,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:31,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:31,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:31,432 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:31,432 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519056920] [2022-03-15 15:24:31,433 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519056920] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:31,433 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:31,433 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:31,433 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680234882] [2022-03-15 15:24:31,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:31,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:31,433 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:31,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:31,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:31,433 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) [2022-03-15 15:24:31,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:31,688 INFO L93 Difference]: Finished difference Result 1113 states and 2881 transitions. [2022-03-15 15:24:31,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:31,688 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 [2022-03-15 15:24:31,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:31,690 INFO L225 Difference]: With dead ends: 1113 [2022-03-15 15:24:31,690 INFO L226 Difference]: Without dead ends: 981 [2022-03-15 15:24:31,690 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 [2022-03-15 15:24:31,690 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 [2022-03-15 15:24:31,690 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] [2022-03-15 15:24:31,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 981 states. [2022-03-15 15:24:31,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 981 to 941. [2022-03-15 15:24:31,700 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) [2022-03-15 15:24:31,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 941 states to 941 states and 2463 transitions. [2022-03-15 15:24:31,702 INFO L78 Accepts]: Start accepts. Automaton has 941 states and 2463 transitions. Word has length 26 [2022-03-15 15:24:31,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:31,702 INFO L470 AbstractCegarLoop]: Abstraction has 941 states and 2463 transitions. [2022-03-15 15:24:31,702 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) [2022-03-15 15:24:31,702 INFO L276 IsEmpty]: Start isEmpty. Operand 941 states and 2463 transitions. [2022-03-15 15:24:31,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:31,704 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:31,704 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] [2022-03-15 15:24:31,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable298 [2022-03-15 15:24:31,704 INFO L402 AbstractCegarLoop]: === Iteration 300 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:31,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:31,704 INFO L85 PathProgramCache]: Analyzing trace with hash -2093324355, now seen corresponding path program 298 times [2022-03-15 15:24:31,704 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:31,704 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093467221] [2022-03-15 15:24:31,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:31,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:31,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:31,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:31,784 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:31,784 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093467221] [2022-03-15 15:24:31,784 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093467221] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:31,784 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:31,784 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:31,784 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262071724] [2022-03-15 15:24:31,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:31,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:31,784 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:31,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:31,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:31,784 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) [2022-03-15 15:24:32,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:32,025 INFO L93 Difference]: Finished difference Result 1045 states and 2715 transitions. [2022-03-15 15:24:32,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:32,026 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:32,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:32,027 INFO L225 Difference]: With dead ends: 1045 [2022-03-15 15:24:32,027 INFO L226 Difference]: Without dead ends: 955 [2022-03-15 15:24:32,027 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 [2022-03-15 15:24:32,027 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 [2022-03-15 15:24:32,027 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] [2022-03-15 15:24:32,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 955 states. [2022-03-15 15:24:32,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 955 to 926. [2022-03-15 15:24:32,035 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) [2022-03-15 15:24:32,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 926 states to 926 states and 2430 transitions. [2022-03-15 15:24:32,036 INFO L78 Accepts]: Start accepts. Automaton has 926 states and 2430 transitions. Word has length 26 [2022-03-15 15:24:32,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:32,036 INFO L470 AbstractCegarLoop]: Abstraction has 926 states and 2430 transitions. [2022-03-15 15:24:32,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:32,036 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states and 2430 transitions. [2022-03-15 15:24:32,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:32,037 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:32,037 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:32,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable299 [2022-03-15 15:24:32,037 INFO L402 AbstractCegarLoop]: === Iteration 301 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:32,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:32,037 INFO L85 PathProgramCache]: Analyzing trace with hash -392318849, now seen corresponding path program 299 times [2022-03-15 15:24:32,037 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:32,037 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406870113] [2022-03-15 15:24:32,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:32,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:32,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:32,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:32,105 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:32,105 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406870113] [2022-03-15 15:24:32,105 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406870113] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:32,105 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:32,105 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:32,105 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003875975] [2022-03-15 15:24:32,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:32,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:32,106 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:32,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:32,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:32,106 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) [2022-03-15 15:24:32,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:32,348 INFO L93 Difference]: Finished difference Result 1077 states and 2798 transitions. [2022-03-15 15:24:32,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:32,348 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:32,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:32,349 INFO L225 Difference]: With dead ends: 1077 [2022-03-15 15:24:32,349 INFO L226 Difference]: Without dead ends: 984 [2022-03-15 15:24:32,349 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:32,350 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 [2022-03-15 15:24:32,350 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] [2022-03-15 15:24:32,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 984 states. [2022-03-15 15:24:32,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 984 to 926. [2022-03-15 15:24:32,357 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) [2022-03-15 15:24:32,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 926 states to 926 states and 2422 transitions. [2022-03-15 15:24:32,358 INFO L78 Accepts]: Start accepts. Automaton has 926 states and 2422 transitions. Word has length 26 [2022-03-15 15:24:32,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:32,358 INFO L470 AbstractCegarLoop]: Abstraction has 926 states and 2422 transitions. [2022-03-15 15:24:32,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:32,358 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states and 2422 transitions. [2022-03-15 15:24:32,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:32,359 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:32,359 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:32,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable300 [2022-03-15 15:24:32,360 INFO L402 AbstractCegarLoop]: === Iteration 302 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:32,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:32,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1421354887, now seen corresponding path program 300 times [2022-03-15 15:24:32,360 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:32,360 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38622654] [2022-03-15 15:24:32,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:32,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:32,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:32,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:32,428 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:32,428 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38622654] [2022-03-15 15:24:32,428 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38622654] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:32,429 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:32,429 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:32,429 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978569894] [2022-03-15 15:24:32,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:32,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:32,429 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:32,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:32,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:32,429 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) [2022-03-15 15:24:32,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:32,663 INFO L93 Difference]: Finished difference Result 1095 states and 2837 transitions. [2022-03-15 15:24:32,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:32,663 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:32,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:32,664 INFO L225 Difference]: With dead ends: 1095 [2022-03-15 15:24:32,665 INFO L226 Difference]: Without dead ends: 1012 [2022-03-15 15:24:32,665 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:32,665 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 [2022-03-15 15:24:32,665 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] [2022-03-15 15:24:32,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1012 states. [2022-03-15 15:24:32,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1012 to 914. [2022-03-15 15:24:32,672 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) [2022-03-15 15:24:32,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 914 states to 914 states and 2395 transitions. [2022-03-15 15:24:32,673 INFO L78 Accepts]: Start accepts. Automaton has 914 states and 2395 transitions. Word has length 26 [2022-03-15 15:24:32,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:32,674 INFO L470 AbstractCegarLoop]: Abstraction has 914 states and 2395 transitions. [2022-03-15 15:24:32,674 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) [2022-03-15 15:24:32,674 INFO L276 IsEmpty]: Start isEmpty. Operand 914 states and 2395 transitions. [2022-03-15 15:24:32,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:32,675 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:32,675 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:32,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable301 [2022-03-15 15:24:32,675 INFO L402 AbstractCegarLoop]: === Iteration 303 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:32,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:32,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1304683867, now seen corresponding path program 301 times [2022-03-15 15:24:32,675 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:32,675 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775473656] [2022-03-15 15:24:32,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:32,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:32,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:32,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:32,743 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:32,743 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775473656] [2022-03-15 15:24:32,743 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775473656] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:32,743 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:32,743 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:32,744 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438881173] [2022-03-15 15:24:32,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:32,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:32,744 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:32,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:32,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:32,744 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) [2022-03-15 15:24:32,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:32,975 INFO L93 Difference]: Finished difference Result 1015 states and 2644 transitions. [2022-03-15 15:24:32,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:32,976 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:32,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:32,977 INFO L225 Difference]: With dead ends: 1015 [2022-03-15 15:24:32,977 INFO L226 Difference]: Without dead ends: 928 [2022-03-15 15:24:32,977 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:32,977 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 [2022-03-15 15:24:32,977 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] [2022-03-15 15:24:32,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 928 states. [2022-03-15 15:24:32,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 928 to 876. [2022-03-15 15:24:32,984 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) [2022-03-15 15:24:32,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 876 states to 876 states and 2300 transitions. [2022-03-15 15:24:32,985 INFO L78 Accepts]: Start accepts. Automaton has 876 states and 2300 transitions. Word has length 26 [2022-03-15 15:24:32,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:32,985 INFO L470 AbstractCegarLoop]: Abstraction has 876 states and 2300 transitions. [2022-03-15 15:24:32,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:32,985 INFO L276 IsEmpty]: Start isEmpty. Operand 876 states and 2300 transitions. [2022-03-15 15:24:32,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:32,986 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:32,986 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] [2022-03-15 15:24:32,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable302 [2022-03-15 15:24:32,986 INFO L402 AbstractCegarLoop]: === Iteration 304 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:32,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:32,987 INFO L85 PathProgramCache]: Analyzing trace with hash -911629735, now seen corresponding path program 302 times [2022-03-15 15:24:32,987 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:32,987 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613439145] [2022-03-15 15:24:32,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:32,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:32,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:33,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:33,064 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:33,064 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613439145] [2022-03-15 15:24:33,064 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613439145] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:33,064 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:33,064 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:33,064 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237042768] [2022-03-15 15:24:33,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:33,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:33,064 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:33,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:33,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:33,065 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) [2022-03-15 15:24:33,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:33,288 INFO L93 Difference]: Finished difference Result 1024 states and 2650 transitions. [2022-03-15 15:24:33,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:33,288 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:33,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:33,290 INFO L225 Difference]: With dead ends: 1024 [2022-03-15 15:24:33,290 INFO L226 Difference]: Without dead ends: 949 [2022-03-15 15:24:33,290 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:33,290 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 [2022-03-15 15:24:33,290 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] [2022-03-15 15:24:33,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 949 states. [2022-03-15 15:24:33,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 949 to 881. [2022-03-15 15:24:33,297 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) [2022-03-15 15:24:33,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 881 states to 881 states and 2316 transitions. [2022-03-15 15:24:33,299 INFO L78 Accepts]: Start accepts. Automaton has 881 states and 2316 transitions. Word has length 26 [2022-03-15 15:24:33,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:33,299 INFO L470 AbstractCegarLoop]: Abstraction has 881 states and 2316 transitions. [2022-03-15 15:24:33,299 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) [2022-03-15 15:24:33,299 INFO L276 IsEmpty]: Start isEmpty. Operand 881 states and 2316 transitions. [2022-03-15 15:24:33,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:33,300 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:33,300 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] [2022-03-15 15:24:33,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable303 [2022-03-15 15:24:33,300 INFO L402 AbstractCegarLoop]: === Iteration 305 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:33,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:33,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1447036635, now seen corresponding path program 303 times [2022-03-15 15:24:33,300 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:33,300 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298155691] [2022-03-15 15:24:33,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:33,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:33,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:33,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:33,369 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:33,369 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298155691] [2022-03-15 15:24:33,369 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298155691] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:33,369 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:33,369 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:33,369 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456490149] [2022-03-15 15:24:33,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:33,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:33,370 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:33,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:33,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:33,370 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) [2022-03-15 15:24:33,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:33,611 INFO L93 Difference]: Finished difference Result 1013 states and 2642 transitions. [2022-03-15 15:24:33,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:33,611 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:33,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:33,612 INFO L225 Difference]: With dead ends: 1013 [2022-03-15 15:24:33,612 INFO L226 Difference]: Without dead ends: 912 [2022-03-15 15:24:33,612 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:33,612 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 [2022-03-15 15:24:33,612 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] [2022-03-15 15:24:33,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 912 states. [2022-03-15 15:24:33,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 912 to 880. [2022-03-15 15:24:33,619 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) [2022-03-15 15:24:33,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 2312 transitions. [2022-03-15 15:24:33,621 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 2312 transitions. Word has length 26 [2022-03-15 15:24:33,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:33,621 INFO L470 AbstractCegarLoop]: Abstraction has 880 states and 2312 transitions. [2022-03-15 15:24:33,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:33,621 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 2312 transitions. [2022-03-15 15:24:33,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:33,622 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:33,622 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:33,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable304 [2022-03-15 15:24:33,622 INFO L402 AbstractCegarLoop]: === Iteration 306 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:33,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:33,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1814409019, now seen corresponding path program 304 times [2022-03-15 15:24:33,622 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:33,622 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626592125] [2022-03-15 15:24:33,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:33,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:33,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:33,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:33,692 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:33,692 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626592125] [2022-03-15 15:24:33,692 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626592125] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:33,692 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:33,692 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:33,692 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617353093] [2022-03-15 15:24:33,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:33,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:33,692 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:33,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:33,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:33,692 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) [2022-03-15 15:24:33,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:33,912 INFO L93 Difference]: Finished difference Result 1005 states and 2609 transitions. [2022-03-15 15:24:33,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:33,913 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:33,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:33,914 INFO L225 Difference]: With dead ends: 1005 [2022-03-15 15:24:33,914 INFO L226 Difference]: Without dead ends: 924 [2022-03-15 15:24:33,914 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:33,914 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 [2022-03-15 15:24:33,914 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] [2022-03-15 15:24:33,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2022-03-15 15:24:33,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 882. [2022-03-15 15:24:33,921 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) [2022-03-15 15:24:33,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 2320 transitions. [2022-03-15 15:24:33,922 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 2320 transitions. Word has length 26 [2022-03-15 15:24:33,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:33,922 INFO L470 AbstractCegarLoop]: Abstraction has 882 states and 2320 transitions. [2022-03-15 15:24:33,922 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) [2022-03-15 15:24:33,922 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 2320 transitions. [2022-03-15 15:24:33,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:33,923 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:33,923 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:33,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable305 [2022-03-15 15:24:33,924 INFO L402 AbstractCegarLoop]: === Iteration 307 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:33,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:33,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1118437701, now seen corresponding path program 305 times [2022-03-15 15:24:33,924 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:33,924 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693968447] [2022-03-15 15:24:33,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:33,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:33,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:33,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:33,993 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:33,993 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693968447] [2022-03-15 15:24:33,993 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693968447] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:33,993 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:33,993 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:33,993 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330032133] [2022-03-15 15:24:33,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:33,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:33,994 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:33,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:33,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:33,994 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) [2022-03-15 15:24:34,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:34,224 INFO L93 Difference]: Finished difference Result 1011 states and 2638 transitions. [2022-03-15 15:24:34,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:34,224 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 [2022-03-15 15:24:34,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:34,225 INFO L225 Difference]: With dead ends: 1011 [2022-03-15 15:24:34,226 INFO L226 Difference]: Without dead ends: 936 [2022-03-15 15:24:34,226 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 [2022-03-15 15:24:34,226 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 [2022-03-15 15:24:34,226 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] [2022-03-15 15:24:34,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 936 states. [2022-03-15 15:24:34,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 936 to 886. [2022-03-15 15:24:34,233 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) [2022-03-15 15:24:34,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 886 states to 886 states and 2334 transitions. [2022-03-15 15:24:34,234 INFO L78 Accepts]: Start accepts. Automaton has 886 states and 2334 transitions. Word has length 26 [2022-03-15 15:24:34,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:34,234 INFO L470 AbstractCegarLoop]: Abstraction has 886 states and 2334 transitions. [2022-03-15 15:24:34,234 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:34,234 INFO L276 IsEmpty]: Start isEmpty. Operand 886 states and 2334 transitions. [2022-03-15 15:24:34,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:34,235 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:34,235 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:34,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable306 [2022-03-15 15:24:34,235 INFO L402 AbstractCegarLoop]: === Iteration 308 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:34,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:34,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1240228669, now seen corresponding path program 306 times [2022-03-15 15:24:34,236 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:34,236 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554419330] [2022-03-15 15:24:34,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:34,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:34,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:34,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:34,304 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:34,304 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554419330] [2022-03-15 15:24:34,304 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554419330] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:34,305 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:34,305 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:34,305 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982724303] [2022-03-15 15:24:34,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:34,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:34,305 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:34,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:34,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:34,305 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) [2022-03-15 15:24:34,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:34,550 INFO L93 Difference]: Finished difference Result 1026 states and 2678 transitions. [2022-03-15 15:24:34,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:34,550 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:34,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:34,551 INFO L225 Difference]: With dead ends: 1026 [2022-03-15 15:24:34,551 INFO L226 Difference]: Without dead ends: 925 [2022-03-15 15:24:34,551 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:34,551 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 [2022-03-15 15:24:34,551 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] [2022-03-15 15:24:34,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states. [2022-03-15 15:24:34,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 883. [2022-03-15 15:24:34,559 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) [2022-03-15 15:24:34,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 2325 transitions. [2022-03-15 15:24:34,560 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 2325 transitions. Word has length 26 [2022-03-15 15:24:34,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:34,560 INFO L470 AbstractCegarLoop]: Abstraction has 883 states and 2325 transitions. [2022-03-15 15:24:34,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:34,560 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 2325 transitions. [2022-03-15 15:24:34,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:34,561 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:34,561 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:34,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable307 [2022-03-15 15:24:34,561 INFO L402 AbstractCegarLoop]: === Iteration 309 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:34,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:34,561 INFO L85 PathProgramCache]: Analyzing trace with hash 583065147, now seen corresponding path program 307 times [2022-03-15 15:24:34,561 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:34,561 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544789269] [2022-03-15 15:24:34,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:34,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:34,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:34,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:34,631 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:34,631 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544789269] [2022-03-15 15:24:34,631 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544789269] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:34,631 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:34,631 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:34,631 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906118588] [2022-03-15 15:24:34,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:34,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:34,631 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:34,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:34,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:34,632 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) [2022-03-15 15:24:34,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:34,860 INFO L93 Difference]: Finished difference Result 993 states and 2589 transitions. [2022-03-15 15:24:34,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:34,860 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:34,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:34,861 INFO L225 Difference]: With dead ends: 993 [2022-03-15 15:24:34,861 INFO L226 Difference]: Without dead ends: 912 [2022-03-15 15:24:34,861 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:34,861 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 [2022-03-15 15:24:34,861 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] [2022-03-15 15:24:34,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 912 states. [2022-03-15 15:24:34,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 912 to 884. [2022-03-15 15:24:34,869 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) [2022-03-15 15:24:34,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 884 states to 884 states and 2326 transitions. [2022-03-15 15:24:34,870 INFO L78 Accepts]: Start accepts. Automaton has 884 states and 2326 transitions. Word has length 26 [2022-03-15 15:24:34,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:34,870 INFO L470 AbstractCegarLoop]: Abstraction has 884 states and 2326 transitions. [2022-03-15 15:24:34,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:34,870 INFO L276 IsEmpty]: Start isEmpty. Operand 884 states and 2326 transitions. [2022-03-15 15:24:34,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:34,871 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:34,871 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:34,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable308 [2022-03-15 15:24:34,871 INFO L402 AbstractCegarLoop]: === Iteration 310 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:34,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:34,872 INFO L85 PathProgramCache]: Analyzing trace with hash -745500775, now seen corresponding path program 308 times [2022-03-15 15:24:34,872 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:34,872 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222387382] [2022-03-15 15:24:34,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:34,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:34,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:34,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:34,941 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:34,941 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222387382] [2022-03-15 15:24:34,941 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222387382] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:34,941 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:34,941 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:34,941 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551399959] [2022-03-15 15:24:34,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:34,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:34,941 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:34,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:34,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:34,941 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) [2022-03-15 15:24:35,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:35,189 INFO L93 Difference]: Finished difference Result 999 states and 2604 transitions. [2022-03-15 15:24:35,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:35,189 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 [2022-03-15 15:24:35,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:35,191 INFO L225 Difference]: With dead ends: 999 [2022-03-15 15:24:35,191 INFO L226 Difference]: Without dead ends: 890 [2022-03-15 15:24:35,191 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:35,191 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 [2022-03-15 15:24:35,191 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] [2022-03-15 15:24:35,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 890 states. [2022-03-15 15:24:35,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 890 to 878. [2022-03-15 15:24:35,198 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) [2022-03-15 15:24:35,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 2313 transitions. [2022-03-15 15:24:35,199 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 2313 transitions. Word has length 26 [2022-03-15 15:24:35,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:35,199 INFO L470 AbstractCegarLoop]: Abstraction has 878 states and 2313 transitions. [2022-03-15 15:24:35,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:35,199 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 2313 transitions. [2022-03-15 15:24:35,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:35,200 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:35,200 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] [2022-03-15 15:24:35,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable309 [2022-03-15 15:24:35,200 INFO L402 AbstractCegarLoop]: === Iteration 311 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:35,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:35,201 INFO L85 PathProgramCache]: Analyzing trace with hash -968140131, now seen corresponding path program 309 times [2022-03-15 15:24:35,201 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:35,201 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436545075] [2022-03-15 15:24:35,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:35,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:35,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:35,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:35,282 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:35,282 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436545075] [2022-03-15 15:24:35,282 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436545075] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:35,282 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:35,282 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:35,282 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375969569] [2022-03-15 15:24:35,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:35,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:35,283 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:35,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:35,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:35,283 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) [2022-03-15 15:24:35,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:35,511 INFO L93 Difference]: Finished difference Result 1017 states and 2638 transitions. [2022-03-15 15:24:35,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:35,511 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:35,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:35,512 INFO L225 Difference]: With dead ends: 1017 [2022-03-15 15:24:35,512 INFO L226 Difference]: Without dead ends: 938 [2022-03-15 15:24:35,513 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 [2022-03-15 15:24:35,513 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 [2022-03-15 15:24:35,513 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] [2022-03-15 15:24:35,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 938 states. [2022-03-15 15:24:35,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 938 to 878. [2022-03-15 15:24:35,520 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) [2022-03-15 15:24:35,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 2313 transitions. [2022-03-15 15:24:35,521 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 2313 transitions. Word has length 26 [2022-03-15 15:24:35,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:35,521 INFO L470 AbstractCegarLoop]: Abstraction has 878 states and 2313 transitions. [2022-03-15 15:24:35,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:35,521 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 2313 transitions. [2022-03-15 15:24:35,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:35,522 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:35,522 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:35,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable310 [2022-03-15 15:24:35,522 INFO L402 AbstractCegarLoop]: === Iteration 312 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:35,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:35,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1934682619, now seen corresponding path program 310 times [2022-03-15 15:24:35,522 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:35,522 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263899085] [2022-03-15 15:24:35,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:35,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:35,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:35,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:35,592 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:35,592 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263899085] [2022-03-15 15:24:35,592 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263899085] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:35,592 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:35,592 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:35,592 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56779251] [2022-03-15 15:24:35,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:35,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:35,593 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:35,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:35,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:35,593 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) [2022-03-15 15:24:35,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:35,816 INFO L93 Difference]: Finished difference Result 986 states and 2573 transitions. [2022-03-15 15:24:35,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:35,816 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:35,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:35,817 INFO L225 Difference]: With dead ends: 986 [2022-03-15 15:24:35,817 INFO L226 Difference]: Without dead ends: 900 [2022-03-15 15:24:35,817 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 [2022-03-15 15:24:35,818 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 [2022-03-15 15:24:35,818 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] [2022-03-15 15:24:35,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 900 states. [2022-03-15 15:24:35,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 900 to 871. [2022-03-15 15:24:35,829 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) [2022-03-15 15:24:35,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 871 states to 871 states and 2296 transitions. [2022-03-15 15:24:35,830 INFO L78 Accepts]: Start accepts. Automaton has 871 states and 2296 transitions. Word has length 26 [2022-03-15 15:24:35,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:35,830 INFO L470 AbstractCegarLoop]: Abstraction has 871 states and 2296 transitions. [2022-03-15 15:24:35,831 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) [2022-03-15 15:24:35,831 INFO L276 IsEmpty]: Start isEmpty. Operand 871 states and 2296 transitions. [2022-03-15 15:24:35,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:35,832 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:35,832 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] [2022-03-15 15:24:35,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable311 [2022-03-15 15:24:35,832 INFO L402 AbstractCegarLoop]: === Iteration 313 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:35,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:35,832 INFO L85 PathProgramCache]: Analyzing trace with hash -718854477, now seen corresponding path program 311 times [2022-03-15 15:24:35,832 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:35,832 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613140306] [2022-03-15 15:24:35,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:35,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:35,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:35,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:35,901 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:35,901 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613140306] [2022-03-15 15:24:35,901 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613140306] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:35,901 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:35,901 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:35,901 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730508881] [2022-03-15 15:24:35,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:35,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:35,902 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:35,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:35,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:35,902 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) [2022-03-15 15:24:36,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:36,156 INFO L93 Difference]: Finished difference Result 1044 states and 2714 transitions. [2022-03-15 15:24:36,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:36,156 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:36,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:36,157 INFO L225 Difference]: With dead ends: 1044 [2022-03-15 15:24:36,157 INFO L226 Difference]: Without dead ends: 907 [2022-03-15 15:24:36,157 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:36,158 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 [2022-03-15 15:24:36,158 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] [2022-03-15 15:24:36,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2022-03-15 15:24:36,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 883. [2022-03-15 15:24:36,167 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) [2022-03-15 15:24:36,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 2316 transitions. [2022-03-15 15:24:36,169 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 2316 transitions. Word has length 26 [2022-03-15 15:24:36,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:36,169 INFO L470 AbstractCegarLoop]: Abstraction has 883 states and 2316 transitions. [2022-03-15 15:24:36,169 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:36,169 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 2316 transitions. [2022-03-15 15:24:36,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:36,170 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:36,170 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:36,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable312 [2022-03-15 15:24:36,170 INFO L402 AbstractCegarLoop]: === Iteration 314 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:36,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:36,171 INFO L85 PathProgramCache]: Analyzing trace with hash -219428363, now seen corresponding path program 312 times [2022-03-15 15:24:36,171 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:36,171 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133198021] [2022-03-15 15:24:36,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:36,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:36,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:36,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:36,240 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:36,240 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133198021] [2022-03-15 15:24:36,240 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133198021] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:36,240 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:36,241 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:36,241 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367952905] [2022-03-15 15:24:36,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:36,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:36,241 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:36,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:36,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:36,241 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) [2022-03-15 15:24:36,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:36,490 INFO L93 Difference]: Finished difference Result 1036 states and 2690 transitions. [2022-03-15 15:24:36,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:36,491 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:36,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:36,492 INFO L225 Difference]: With dead ends: 1036 [2022-03-15 15:24:36,492 INFO L226 Difference]: Without dead ends: 910 [2022-03-15 15:24:36,492 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:36,492 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 [2022-03-15 15:24:36,492 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] [2022-03-15 15:24:36,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 910 states. [2022-03-15 15:24:36,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 910 to 896. [2022-03-15 15:24:36,499 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) [2022-03-15 15:24:36,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 896 states to 896 states and 2337 transitions. [2022-03-15 15:24:36,500 INFO L78 Accepts]: Start accepts. Automaton has 896 states and 2337 transitions. Word has length 26 [2022-03-15 15:24:36,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:36,500 INFO L470 AbstractCegarLoop]: Abstraction has 896 states and 2337 transitions. [2022-03-15 15:24:36,500 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:36,500 INFO L276 IsEmpty]: Start isEmpty. Operand 896 states and 2337 transitions. [2022-03-15 15:24:36,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:36,501 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:36,501 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:36,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable313 [2022-03-15 15:24:36,501 INFO L402 AbstractCegarLoop]: === Iteration 315 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:36,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:36,502 INFO L85 PathProgramCache]: Analyzing trace with hash 701147603, now seen corresponding path program 313 times [2022-03-15 15:24:36,502 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:36,502 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20630557] [2022-03-15 15:24:36,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:36,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:36,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:36,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:36,570 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:36,570 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20630557] [2022-03-15 15:24:36,570 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20630557] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:36,570 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:36,570 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:36,570 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093099943] [2022-03-15 15:24:36,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:36,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:36,571 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:36,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:36,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:36,571 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) [2022-03-15 15:24:36,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:36,819 INFO L93 Difference]: Finished difference Result 1048 states and 2702 transitions. [2022-03-15 15:24:36,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:36,819 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:36,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:36,821 INFO L225 Difference]: With dead ends: 1048 [2022-03-15 15:24:36,821 INFO L226 Difference]: Without dead ends: 914 [2022-03-15 15:24:36,821 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:36,821 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 [2022-03-15 15:24:36,821 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] [2022-03-15 15:24:36,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 914 states. [2022-03-15 15:24:36,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 914 to 884. [2022-03-15 15:24:36,829 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) [2022-03-15 15:24:36,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 884 states to 884 states and 2305 transitions. [2022-03-15 15:24:36,830 INFO L78 Accepts]: Start accepts. Automaton has 884 states and 2305 transitions. Word has length 26 [2022-03-15 15:24:36,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:36,830 INFO L470 AbstractCegarLoop]: Abstraction has 884 states and 2305 transitions. [2022-03-15 15:24:36,830 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) [2022-03-15 15:24:36,830 INFO L276 IsEmpty]: Start isEmpty. Operand 884 states and 2305 transitions. [2022-03-15 15:24:36,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:36,831 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:36,831 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] [2022-03-15 15:24:36,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable314 [2022-03-15 15:24:36,831 INFO L402 AbstractCegarLoop]: === Iteration 316 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:36,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:36,831 INFO L85 PathProgramCache]: Analyzing trace with hash -40973687, now seen corresponding path program 314 times [2022-03-15 15:24:36,831 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:36,831 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092517748] [2022-03-15 15:24:36,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:36,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:36,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:36,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:36,905 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:36,905 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092517748] [2022-03-15 15:24:36,905 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092517748] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:36,905 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:36,905 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:36,905 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854520252] [2022-03-15 15:24:36,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:36,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:36,905 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:36,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:36,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:36,906 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) [2022-03-15 15:24:37,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:37,150 INFO L93 Difference]: Finished difference Result 1011 states and 2623 transitions. [2022-03-15 15:24:37,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:37,150 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 [2022-03-15 15:24:37,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:37,151 INFO L225 Difference]: With dead ends: 1011 [2022-03-15 15:24:37,151 INFO L226 Difference]: Without dead ends: 865 [2022-03-15 15:24:37,152 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 [2022-03-15 15:24:37,152 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 [2022-03-15 15:24:37,152 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] [2022-03-15 15:24:37,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2022-03-15 15:24:37,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 845. [2022-03-15 15:24:37,159 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) [2022-03-15 15:24:37,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 845 states to 845 states and 2216 transitions. [2022-03-15 15:24:37,160 INFO L78 Accepts]: Start accepts. Automaton has 845 states and 2216 transitions. Word has length 26 [2022-03-15 15:24:37,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:37,160 INFO L470 AbstractCegarLoop]: Abstraction has 845 states and 2216 transitions. [2022-03-15 15:24:37,160 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:37,160 INFO L276 IsEmpty]: Start isEmpty. Operand 845 states and 2216 transitions. [2022-03-15 15:24:37,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:37,161 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:37,161 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:37,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable315 [2022-03-15 15:24:37,161 INFO L402 AbstractCegarLoop]: === Iteration 317 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:37,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:37,162 INFO L85 PathProgramCache]: Analyzing trace with hash 164441119, now seen corresponding path program 315 times [2022-03-15 15:24:37,162 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:37,162 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932867060] [2022-03-15 15:24:37,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:37,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:37,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:37,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:37,222 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:37,222 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932867060] [2022-03-15 15:24:37,222 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932867060] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:37,222 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:37,222 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:24:37,222 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137940124] [2022-03-15 15:24:37,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:37,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:24:37,222 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:37,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:24:37,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:24:37,223 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) [2022-03-15 15:24:37,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:37,406 INFO L93 Difference]: Finished difference Result 978 states and 2521 transitions. [2022-03-15 15:24:37,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:24:37,407 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 [2022-03-15 15:24:37,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:37,408 INFO L225 Difference]: With dead ends: 978 [2022-03-15 15:24:37,408 INFO L226 Difference]: Without dead ends: 883 [2022-03-15 15:24:37,408 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 [2022-03-15 15:24:37,408 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, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:24:37,408 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 217 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:24:37,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2022-03-15 15:24:37,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 845. [2022-03-15 15:24:37,415 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) [2022-03-15 15:24:37,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 845 states to 845 states and 2212 transitions. [2022-03-15 15:24:37,416 INFO L78 Accepts]: Start accepts. Automaton has 845 states and 2212 transitions. Word has length 26 [2022-03-15 15:24:37,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:37,417 INFO L470 AbstractCegarLoop]: Abstraction has 845 states and 2212 transitions. [2022-03-15 15:24:37,417 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) [2022-03-15 15:24:37,417 INFO L276 IsEmpty]: Start isEmpty. Operand 845 states and 2212 transitions. [2022-03-15 15:24:37,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:37,418 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:37,418 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] [2022-03-15 15:24:37,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable316 [2022-03-15 15:24:37,418 INFO L402 AbstractCegarLoop]: === Iteration 318 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:37,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:37,418 INFO L85 PathProgramCache]: Analyzing trace with hash 839941661, now seen corresponding path program 316 times [2022-03-15 15:24:37,418 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:37,418 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510886391] [2022-03-15 15:24:37,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:37,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:37,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:37,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:37,491 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:37,491 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510886391] [2022-03-15 15:24:37,491 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510886391] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:37,491 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:37,491 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:37,492 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517021477] [2022-03-15 15:24:37,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:37,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:37,492 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:37,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:37,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:37,492 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) [2022-03-15 15:24:37,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:37,719 INFO L93 Difference]: Finished difference Result 986 states and 2546 transitions. [2022-03-15 15:24:37,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:37,719 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:37,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:37,720 INFO L225 Difference]: With dead ends: 986 [2022-03-15 15:24:37,720 INFO L226 Difference]: Without dead ends: 911 [2022-03-15 15:24:37,720 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 [2022-03-15 15:24:37,720 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 [2022-03-15 15:24:37,720 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] [2022-03-15 15:24:37,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 911 states. [2022-03-15 15:24:37,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 911 to 857. [2022-03-15 15:24:37,727 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) [2022-03-15 15:24:37,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 857 states to 857 states and 2235 transitions. [2022-03-15 15:24:37,728 INFO L78 Accepts]: Start accepts. Automaton has 857 states and 2235 transitions. Word has length 26 [2022-03-15 15:24:37,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:37,729 INFO L470 AbstractCegarLoop]: Abstraction has 857 states and 2235 transitions. [2022-03-15 15:24:37,729 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) [2022-03-15 15:24:37,729 INFO L276 IsEmpty]: Start isEmpty. Operand 857 states and 2235 transitions. [2022-03-15 15:24:37,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:37,730 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:37,730 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:37,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable317 [2022-03-15 15:24:37,730 INFO L402 AbstractCegarLoop]: === Iteration 319 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:37,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:37,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1096359265, now seen corresponding path program 317 times [2022-03-15 15:24:37,730 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:37,730 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892681731] [2022-03-15 15:24:37,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:37,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:37,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:37,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:37,802 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:37,802 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892681731] [2022-03-15 15:24:37,802 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892681731] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:37,802 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:37,802 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:37,802 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549704500] [2022-03-15 15:24:37,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:37,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:37,803 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:37,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:37,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:37,803 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) [2022-03-15 15:24:38,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:38,047 INFO L93 Difference]: Finished difference Result 988 states and 2567 transitions. [2022-03-15 15:24:38,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:38,048 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 [2022-03-15 15:24:38,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:38,049 INFO L225 Difference]: With dead ends: 988 [2022-03-15 15:24:38,049 INFO L226 Difference]: Without dead ends: 883 [2022-03-15 15:24:38,049 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:38,049 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 [2022-03-15 15:24:38,049 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] [2022-03-15 15:24:38,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2022-03-15 15:24:38,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 852. [2022-03-15 15:24:38,056 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) [2022-03-15 15:24:38,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 852 states to 852 states and 2215 transitions. [2022-03-15 15:24:38,057 INFO L78 Accepts]: Start accepts. Automaton has 852 states and 2215 transitions. Word has length 26 [2022-03-15 15:24:38,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:38,057 INFO L470 AbstractCegarLoop]: Abstraction has 852 states and 2215 transitions. [2022-03-15 15:24:38,057 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) [2022-03-15 15:24:38,057 INFO L276 IsEmpty]: Start isEmpty. Operand 852 states and 2215 transitions. [2022-03-15 15:24:38,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:38,058 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:38,058 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] [2022-03-15 15:24:38,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable318 [2022-03-15 15:24:38,059 INFO L402 AbstractCegarLoop]: === Iteration 320 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:38,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:38,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1753522787, now seen corresponding path program 318 times [2022-03-15 15:24:38,059 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:38,059 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188224776] [2022-03-15 15:24:38,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:38,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:38,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:38,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:38,132 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:38,132 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188224776] [2022-03-15 15:24:38,132 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188224776] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:38,132 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:38,132 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:38,132 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281117718] [2022-03-15 15:24:38,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:38,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:38,132 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:38,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:38,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:38,133 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) [2022-03-15 15:24:38,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:38,359 INFO L93 Difference]: Finished difference Result 953 states and 2465 transitions. [2022-03-15 15:24:38,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:38,360 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:38,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:38,361 INFO L225 Difference]: With dead ends: 953 [2022-03-15 15:24:38,361 INFO L226 Difference]: Without dead ends: 872 [2022-03-15 15:24:38,361 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:38,361 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 [2022-03-15 15:24:38,361 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] [2022-03-15 15:24:38,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 872 states. [2022-03-15 15:24:38,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 872 to 856. [2022-03-15 15:24:38,368 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) [2022-03-15 15:24:38,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 856 states to 856 states and 2224 transitions. [2022-03-15 15:24:38,369 INFO L78 Accepts]: Start accepts. Automaton has 856 states and 2224 transitions. Word has length 26 [2022-03-15 15:24:38,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:38,369 INFO L470 AbstractCegarLoop]: Abstraction has 856 states and 2224 transitions. [2022-03-15 15:24:38,369 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) [2022-03-15 15:24:38,369 INFO L276 IsEmpty]: Start isEmpty. Operand 856 states and 2224 transitions. [2022-03-15 15:24:38,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:38,370 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:38,370 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] [2022-03-15 15:24:38,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable319 [2022-03-15 15:24:38,370 INFO L402 AbstractCegarLoop]: === Iteration 321 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:38,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:38,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1212878587, now seen corresponding path program 319 times [2022-03-15 15:24:38,370 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:38,370 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291746244] [2022-03-15 15:24:38,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:38,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:38,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:38,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:38,440 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:38,440 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291746244] [2022-03-15 15:24:38,440 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291746244] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:38,440 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:38,440 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:38,440 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387076477] [2022-03-15 15:24:38,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:38,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:38,440 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:38,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:38,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:38,440 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) [2022-03-15 15:24:38,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:38,689 INFO L93 Difference]: Finished difference Result 967 states and 2502 transitions. [2022-03-15 15:24:38,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:38,689 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 [2022-03-15 15:24:38,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:38,691 INFO L225 Difference]: With dead ends: 967 [2022-03-15 15:24:38,691 INFO L226 Difference]: Without dead ends: 864 [2022-03-15 15:24:38,691 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:38,691 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 [2022-03-15 15:24:38,691 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] [2022-03-15 15:24:38,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2022-03-15 15:24:38,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 853. [2022-03-15 15:24:38,698 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) [2022-03-15 15:24:38,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 853 states to 853 states and 2218 transitions. [2022-03-15 15:24:38,699 INFO L78 Accepts]: Start accepts. Automaton has 853 states and 2218 transitions. Word has length 26 [2022-03-15 15:24:38,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:38,699 INFO L470 AbstractCegarLoop]: Abstraction has 853 states and 2218 transitions. [2022-03-15 15:24:38,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:38,699 INFO L276 IsEmpty]: Start isEmpty. Operand 853 states and 2218 transitions. [2022-03-15 15:24:38,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:38,700 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:38,700 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] [2022-03-15 15:24:38,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable320 [2022-03-15 15:24:38,700 INFO L402 AbstractCegarLoop]: === Iteration 322 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:38,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:38,700 INFO L85 PathProgramCache]: Analyzing trace with hash 990239231, now seen corresponding path program 320 times [2022-03-15 15:24:38,700 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:38,701 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556192000] [2022-03-15 15:24:38,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:38,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:38,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:38,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:38,774 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:38,774 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556192000] [2022-03-15 15:24:38,774 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556192000] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:38,774 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:38,774 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:38,774 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960045334] [2022-03-15 15:24:38,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:38,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:38,774 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:38,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:38,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:38,775 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) [2022-03-15 15:24:38,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:38,998 INFO L93 Difference]: Finished difference Result 988 states and 2530 transitions. [2022-03-15 15:24:38,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:38,998 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 [2022-03-15 15:24:38,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:39,000 INFO L225 Difference]: With dead ends: 988 [2022-03-15 15:24:39,000 INFO L226 Difference]: Without dead ends: 905 [2022-03-15 15:24:39,000 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 [2022-03-15 15:24:39,000 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 [2022-03-15 15:24:39,000 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] [2022-03-15 15:24:39,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 905 states. [2022-03-15 15:24:39,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 905 to 849. [2022-03-15 15:24:39,007 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) [2022-03-15 15:24:39,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 849 states to 849 states and 2206 transitions. [2022-03-15 15:24:39,008 INFO L78 Accepts]: Start accepts. Automaton has 849 states and 2206 transitions. Word has length 26 [2022-03-15 15:24:39,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:39,008 INFO L470 AbstractCegarLoop]: Abstraction has 849 states and 2206 transitions. [2022-03-15 15:24:39,008 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) [2022-03-15 15:24:39,008 INFO L276 IsEmpty]: Start isEmpty. Operand 849 states and 2206 transitions. [2022-03-15 15:24:39,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:39,009 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:39,009 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:39,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable321 [2022-03-15 15:24:39,009 INFO L402 AbstractCegarLoop]: === Iteration 323 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:39,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:39,010 INFO L85 PathProgramCache]: Analyzing trace with hash -401905315, now seen corresponding path program 321 times [2022-03-15 15:24:39,010 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:39,010 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255194902] [2022-03-15 15:24:39,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:39,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:39,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:39,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:39,080 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:39,080 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255194902] [2022-03-15 15:24:39,081 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255194902] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:39,081 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:39,081 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:39,081 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775206983] [2022-03-15 15:24:39,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:39,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:39,081 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:39,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:39,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:39,081 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) [2022-03-15 15:24:39,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:39,308 INFO L93 Difference]: Finished difference Result 951 states and 2457 transitions. [2022-03-15 15:24:39,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:39,309 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:39,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:39,310 INFO L225 Difference]: With dead ends: 951 [2022-03-15 15:24:39,310 INFO L226 Difference]: Without dead ends: 868 [2022-03-15 15:24:39,310 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:39,310 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 [2022-03-15 15:24:39,310 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] [2022-03-15 15:24:39,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 868 states. [2022-03-15 15:24:39,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 868 to 848. [2022-03-15 15:24:39,317 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) [2022-03-15 15:24:39,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 2201 transitions. [2022-03-15 15:24:39,318 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 2201 transitions. Word has length 26 [2022-03-15 15:24:39,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:39,318 INFO L470 AbstractCegarLoop]: Abstraction has 848 states and 2201 transitions. [2022-03-15 15:24:39,318 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:39,318 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 2201 transitions. [2022-03-15 15:24:39,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:39,319 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:39,319 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] [2022-03-15 15:24:39,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable322 [2022-03-15 15:24:39,319 INFO L402 AbstractCegarLoop]: === Iteration 324 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:39,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:39,320 INFO L85 PathProgramCache]: Analyzing trace with hash -352542491, now seen corresponding path program 322 times [2022-03-15 15:24:39,320 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:39,320 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116967966] [2022-03-15 15:24:39,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:39,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:39,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:39,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:39,408 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:39,408 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116967966] [2022-03-15 15:24:39,408 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116967966] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:39,408 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:39,408 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:39,409 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371700226] [2022-03-15 15:24:39,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:39,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:39,409 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:39,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:39,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:39,409 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) [2022-03-15 15:24:39,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:39,693 INFO L93 Difference]: Finished difference Result 963 states and 2484 transitions. [2022-03-15 15:24:39,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:39,693 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:39,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:39,694 INFO L225 Difference]: With dead ends: 963 [2022-03-15 15:24:39,694 INFO L226 Difference]: Without dead ends: 853 [2022-03-15 15:24:39,694 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 [2022-03-15 15:24:39,695 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 15:24:39,695 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 237 Invalid, 701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 690 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 15:24:39,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 853 states. [2022-03-15 15:24:39,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 831. [2022-03-15 15:24:39,701 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) [2022-03-15 15:24:39,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 2161 transitions. [2022-03-15 15:24:39,702 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 2161 transitions. Word has length 26 [2022-03-15 15:24:39,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:39,703 INFO L470 AbstractCegarLoop]: Abstraction has 831 states and 2161 transitions. [2022-03-15 15:24:39,703 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:39,703 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 2161 transitions. [2022-03-15 15:24:39,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:39,704 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:39,704 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] [2022-03-15 15:24:39,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable323 [2022-03-15 15:24:39,704 INFO L402 AbstractCegarLoop]: === Iteration 325 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:39,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:39,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1480666419, now seen corresponding path program 323 times [2022-03-15 15:24:39,704 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:39,704 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235325020] [2022-03-15 15:24:39,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:39,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:39,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:39,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:39,775 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:39,775 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235325020] [2022-03-15 15:24:39,775 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235325020] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:39,775 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:39,775 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:39,775 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77334707] [2022-03-15 15:24:39,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:39,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:39,775 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:39,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:39,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:39,776 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) [2022-03-15 15:24:40,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:40,007 INFO L93 Difference]: Finished difference Result 964 states and 2472 transitions. [2022-03-15 15:24:40,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:40,007 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:40,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:40,009 INFO L225 Difference]: With dead ends: 964 [2022-03-15 15:24:40,009 INFO L226 Difference]: Without dead ends: 883 [2022-03-15 15:24:40,009 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:40,009 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 [2022-03-15 15:24:40,009 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] [2022-03-15 15:24:40,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2022-03-15 15:24:40,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 827. [2022-03-15 15:24:40,016 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) [2022-03-15 15:24:40,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 827 states to 827 states and 2152 transitions. [2022-03-15 15:24:40,017 INFO L78 Accepts]: Start accepts. Automaton has 827 states and 2152 transitions. Word has length 26 [2022-03-15 15:24:40,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:40,017 INFO L470 AbstractCegarLoop]: Abstraction has 827 states and 2152 transitions. [2022-03-15 15:24:40,018 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:40,018 INFO L276 IsEmpty]: Start isEmpty. Operand 827 states and 2152 transitions. [2022-03-15 15:24:40,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:40,019 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:40,019 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] [2022-03-15 15:24:40,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable324 [2022-03-15 15:24:40,019 INFO L402 AbstractCegarLoop]: === Iteration 326 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:40,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:40,019 INFO L85 PathProgramCache]: Analyzing trace with hash 152100497, now seen corresponding path program 324 times [2022-03-15 15:24:40,019 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:40,019 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778700102] [2022-03-15 15:24:40,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:40,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:40,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:40,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:40,087 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:40,087 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778700102] [2022-03-15 15:24:40,088 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778700102] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:40,088 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:40,088 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:40,088 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784719457] [2022-03-15 15:24:40,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:40,088 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:40,088 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:40,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:40,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:40,088 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) [2022-03-15 15:24:40,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:40,334 INFO L93 Difference]: Finished difference Result 932 states and 2411 transitions. [2022-03-15 15:24:40,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:40,334 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:40,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:40,335 INFO L225 Difference]: With dead ends: 932 [2022-03-15 15:24:40,335 INFO L226 Difference]: Without dead ends: 823 [2022-03-15 15:24:40,335 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 [2022-03-15 15:24:40,335 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 [2022-03-15 15:24:40,335 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] [2022-03-15 15:24:40,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 823 states. [2022-03-15 15:24:40,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 823 to 803. [2022-03-15 15:24:40,342 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) [2022-03-15 15:24:40,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 2097 transitions. [2022-03-15 15:24:40,343 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 2097 transitions. Word has length 26 [2022-03-15 15:24:40,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:40,343 INFO L470 AbstractCegarLoop]: Abstraction has 803 states and 2097 transitions. [2022-03-15 15:24:40,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:40,343 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 2097 transitions. [2022-03-15 15:24:40,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:40,344 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:40,344 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:40,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable325 [2022-03-15 15:24:40,344 INFO L402 AbstractCegarLoop]: === Iteration 327 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:40,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:40,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1983661419, now seen corresponding path program 325 times [2022-03-15 15:24:40,344 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:40,344 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244202937] [2022-03-15 15:24:40,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:40,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:40,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:40,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:40,413 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:40,413 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244202937] [2022-03-15 15:24:40,413 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244202937] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:40,413 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:40,413 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:40,413 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747312842] [2022-03-15 15:24:40,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:40,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:40,413 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:40,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:40,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:40,413 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) [2022-03-15 15:24:40,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:40,624 INFO L93 Difference]: Finished difference Result 925 states and 2372 transitions. [2022-03-15 15:24:40,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:40,624 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:40,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:40,625 INFO L225 Difference]: With dead ends: 925 [2022-03-15 15:24:40,625 INFO L226 Difference]: Without dead ends: 828 [2022-03-15 15:24:40,625 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:40,625 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 47 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:24:40,625 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] [2022-03-15 15:24:40,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828 states. [2022-03-15 15:24:40,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 828 to 788. [2022-03-15 15:24:40,632 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) [2022-03-15 15:24:40,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 788 states to 788 states and 2053 transitions. [2022-03-15 15:24:40,633 INFO L78 Accepts]: Start accepts. Automaton has 788 states and 2053 transitions. Word has length 26 [2022-03-15 15:24:40,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:40,633 INFO L470 AbstractCegarLoop]: Abstraction has 788 states and 2053 transitions. [2022-03-15 15:24:40,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:40,633 INFO L276 IsEmpty]: Start isEmpty. Operand 788 states and 2053 transitions. [2022-03-15 15:24:40,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:40,634 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:40,634 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:40,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable326 [2022-03-15 15:24:40,634 INFO L402 AbstractCegarLoop]: === Iteration 328 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:40,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:40,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1032379477, now seen corresponding path program 326 times [2022-03-15 15:24:40,634 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:40,634 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60587331] [2022-03-15 15:24:40,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:40,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:40,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:40,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:40,694 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:40,694 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60587331] [2022-03-15 15:24:40,694 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60587331] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:40,694 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:40,694 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:24:40,694 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792968310] [2022-03-15 15:24:40,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:40,694 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:24:40,694 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:40,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:24:40,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:24:40,695 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) [2022-03-15 15:24:40,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:40,867 INFO L93 Difference]: Finished difference Result 919 states and 2353 transitions. [2022-03-15 15:24:40,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:24:40,867 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 [2022-03-15 15:24:40,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:40,868 INFO L225 Difference]: With dead ends: 919 [2022-03-15 15:24:40,872 INFO L226 Difference]: Without dead ends: 826 [2022-03-15 15:24:40,872 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 [2022-03-15 15:24:40,872 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, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:24:40,872 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 219 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:24:40,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2022-03-15 15:24:40,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 788. [2022-03-15 15:24:40,879 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) [2022-03-15 15:24:40,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 788 states to 788 states and 2049 transitions. [2022-03-15 15:24:40,880 INFO L78 Accepts]: Start accepts. Automaton has 788 states and 2049 transitions. Word has length 26 [2022-03-15 15:24:40,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:40,880 INFO L470 AbstractCegarLoop]: Abstraction has 788 states and 2049 transitions. [2022-03-15 15:24:40,880 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) [2022-03-15 15:24:40,880 INFO L276 IsEmpty]: Start isEmpty. Operand 788 states and 2049 transitions. [2022-03-15 15:24:40,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:40,881 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:40,881 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] [2022-03-15 15:24:40,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable327 [2022-03-15 15:24:40,881 INFO L402 AbstractCegarLoop]: === Iteration 329 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:40,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:40,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1326286893, now seen corresponding path program 327 times [2022-03-15 15:24:40,881 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:40,881 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229039029] [2022-03-15 15:24:40,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:40,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:40,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:40,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:40,949 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:40,949 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229039029] [2022-03-15 15:24:40,949 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229039029] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:40,949 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:40,949 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:40,949 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914770090] [2022-03-15 15:24:40,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:40,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:40,950 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:40,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:40,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:40,950 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) [2022-03-15 15:24:41,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:41,176 INFO L93 Difference]: Finished difference Result 935 states and 2392 transitions. [2022-03-15 15:24:41,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:41,177 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:41,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:41,177 INFO L225 Difference]: With dead ends: 935 [2022-03-15 15:24:41,177 INFO L226 Difference]: Without dead ends: 666 [2022-03-15 15:24:41,177 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 [2022-03-15 15:24:41,178 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 [2022-03-15 15:24:41,178 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] [2022-03-15 15:24:41,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2022-03-15 15:24:41,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 594. [2022-03-15 15:24:41,183 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) [2022-03-15 15:24:41,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 1515 transitions. [2022-03-15 15:24:41,183 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 1515 transitions. Word has length 26 [2022-03-15 15:24:41,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:41,184 INFO L470 AbstractCegarLoop]: Abstraction has 594 states and 1515 transitions. [2022-03-15 15:24:41,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:41,184 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 1515 transitions. [2022-03-15 15:24:41,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:41,184 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:41,184 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:41,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable328 [2022-03-15 15:24:41,184 INFO L402 AbstractCegarLoop]: === Iteration 330 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:41,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:41,185 INFO L85 PathProgramCache]: Analyzing trace with hash -150994965, now seen corresponding path program 328 times [2022-03-15 15:24:41,185 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:41,185 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496050343] [2022-03-15 15:24:41,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:41,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:41,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:41,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:41,253 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:41,253 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496050343] [2022-03-15 15:24:41,253 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496050343] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:41,253 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:41,253 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:41,253 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337114952] [2022-03-15 15:24:41,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:41,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:41,254 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:41,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:41,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:41,254 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) [2022-03-15 15:24:41,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:41,472 INFO L93 Difference]: Finished difference Result 734 states and 1848 transitions. [2022-03-15 15:24:41,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:41,473 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:41,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:41,474 INFO L225 Difference]: With dead ends: 734 [2022-03-15 15:24:41,474 INFO L226 Difference]: Without dead ends: 633 [2022-03-15 15:24:41,474 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:41,474 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 [2022-03-15 15:24:41,474 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] [2022-03-15 15:24:41,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2022-03-15 15:24:41,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 570. [2022-03-15 15:24:41,479 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) [2022-03-15 15:24:41,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 1457 transitions. [2022-03-15 15:24:41,479 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 1457 transitions. Word has length 26 [2022-03-15 15:24:41,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:41,480 INFO L470 AbstractCegarLoop]: Abstraction has 570 states and 1457 transitions. [2022-03-15 15:24:41,480 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) [2022-03-15 15:24:41,480 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 1457 transitions. [2022-03-15 15:24:41,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:41,480 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:41,480 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:41,480 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable329 [2022-03-15 15:24:41,480 INFO L402 AbstractCegarLoop]: === Iteration 331 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:41,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:41,481 INFO L85 PathProgramCache]: Analyzing trace with hash -2087295891, now seen corresponding path program 329 times [2022-03-15 15:24:41,481 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:41,481 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650505877] [2022-03-15 15:24:41,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:41,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:41,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:41,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:41,549 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:41,549 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650505877] [2022-03-15 15:24:41,549 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650505877] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:41,549 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:41,549 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:41,549 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118922982] [2022-03-15 15:24:41,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:41,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:41,549 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:41,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:41,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:41,550 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) [2022-03-15 15:24:41,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:41,792 INFO L93 Difference]: Finished difference Result 694 states and 1767 transitions. [2022-03-15 15:24:41,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:41,792 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:41,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:41,793 INFO L225 Difference]: With dead ends: 694 [2022-03-15 15:24:41,793 INFO L226 Difference]: Without dead ends: 603 [2022-03-15 15:24:41,793 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:41,793 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 [2022-03-15 15:24:41,793 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] [2022-03-15 15:24:41,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2022-03-15 15:24:41,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 587. [2022-03-15 15:24:41,798 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) [2022-03-15 15:24:41,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 1499 transitions. [2022-03-15 15:24:41,798 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 1499 transitions. Word has length 26 [2022-03-15 15:24:41,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:41,798 INFO L470 AbstractCegarLoop]: Abstraction has 587 states and 1499 transitions. [2022-03-15 15:24:41,799 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:41,799 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 1499 transitions. [2022-03-15 15:24:41,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:41,799 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:41,799 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:41,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable330 [2022-03-15 15:24:41,799 INFO L402 AbstractCegarLoop]: === Iteration 332 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:41,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:41,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1288490283, now seen corresponding path program 330 times [2022-03-15 15:24:41,800 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:41,800 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905437803] [2022-03-15 15:24:41,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:41,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:41,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:41,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:41,871 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:41,871 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905437803] [2022-03-15 15:24:41,871 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905437803] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:41,871 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:41,871 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:41,871 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165001671] [2022-03-15 15:24:41,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:41,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:41,871 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:41,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:41,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:41,871 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) [2022-03-15 15:24:42,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:42,118 INFO L93 Difference]: Finished difference Result 696 states and 1770 transitions. [2022-03-15 15:24:42,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:42,118 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:42,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:42,119 INFO L225 Difference]: With dead ends: 696 [2022-03-15 15:24:42,119 INFO L226 Difference]: Without dead ends: 600 [2022-03-15 15:24:42,119 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:42,119 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 [2022-03-15 15:24:42,119 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] [2022-03-15 15:24:42,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2022-03-15 15:24:42,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 582. [2022-03-15 15:24:42,124 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) [2022-03-15 15:24:42,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 1485 transitions. [2022-03-15 15:24:42,125 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 1485 transitions. Word has length 26 [2022-03-15 15:24:42,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:42,125 INFO L470 AbstractCegarLoop]: Abstraction has 582 states and 1485 transitions. [2022-03-15 15:24:42,125 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) [2022-03-15 15:24:42,125 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 1485 transitions. [2022-03-15 15:24:42,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:42,126 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:42,126 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] [2022-03-15 15:24:42,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable331 [2022-03-15 15:24:42,126 INFO L402 AbstractCegarLoop]: === Iteration 333 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:42,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:42,126 INFO L85 PathProgramCache]: Analyzing trace with hash -2109856655, now seen corresponding path program 331 times [2022-03-15 15:24:42,126 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:42,126 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390577839] [2022-03-15 15:24:42,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:42,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:42,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:42,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:42,195 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:42,195 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390577839] [2022-03-15 15:24:42,195 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390577839] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:42,195 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:42,195 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:42,195 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994072881] [2022-03-15 15:24:42,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:42,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:42,195 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:42,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:42,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:42,195 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) [2022-03-15 15:24:42,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:42,439 INFO L93 Difference]: Finished difference Result 709 states and 1796 transitions. [2022-03-15 15:24:42,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:42,439 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 [2022-03-15 15:24:42,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:42,440 INFO L225 Difference]: With dead ends: 709 [2022-03-15 15:24:42,440 INFO L226 Difference]: Without dead ends: 586 [2022-03-15 15:24:42,440 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:42,440 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 [2022-03-15 15:24:42,440 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] [2022-03-15 15:24:42,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2022-03-15 15:24:42,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 570. [2022-03-15 15:24:42,445 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) [2022-03-15 15:24:42,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 1454 transitions. [2022-03-15 15:24:42,446 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 1454 transitions. Word has length 26 [2022-03-15 15:24:42,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:42,446 INFO L470 AbstractCegarLoop]: Abstraction has 570 states and 1454 transitions. [2022-03-15 15:24:42,446 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) [2022-03-15 15:24:42,446 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 1454 transitions. [2022-03-15 15:24:42,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:42,446 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:42,446 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] [2022-03-15 15:24:42,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable332 [2022-03-15 15:24:42,447 INFO L402 AbstractCegarLoop]: === Iteration 334 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:42,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:42,447 INFO L85 PathProgramCache]: Analyzing trace with hash -359076983, now seen corresponding path program 332 times [2022-03-15 15:24:42,447 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:42,447 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102098598] [2022-03-15 15:24:42,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:42,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:42,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:42,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:42,517 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:42,517 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102098598] [2022-03-15 15:24:42,517 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102098598] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:42,517 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:42,517 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:42,517 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133448618] [2022-03-15 15:24:42,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:42,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:42,517 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:42,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:42,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:42,517 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) [2022-03-15 15:24:42,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:42,738 INFO L93 Difference]: Finished difference Result 694 states and 1757 transitions. [2022-03-15 15:24:42,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:42,738 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:42,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:42,739 INFO L225 Difference]: With dead ends: 694 [2022-03-15 15:24:42,739 INFO L226 Difference]: Without dead ends: 613 [2022-03-15 15:24:42,739 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 [2022-03-15 15:24:42,739 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 41 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:24:42,740 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] [2022-03-15 15:24:42,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2022-03-15 15:24:42,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 569. [2022-03-15 15:24:42,744 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) [2022-03-15 15:24:42,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 1452 transitions. [2022-03-15 15:24:42,745 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 1452 transitions. Word has length 26 [2022-03-15 15:24:42,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:42,745 INFO L470 AbstractCegarLoop]: Abstraction has 569 states and 1452 transitions. [2022-03-15 15:24:42,745 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:42,745 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 1452 transitions. [2022-03-15 15:24:42,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:42,746 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:42,746 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:42,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable333 [2022-03-15 15:24:42,746 INFO L402 AbstractCegarLoop]: === Iteration 335 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:42,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:42,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1999589387, now seen corresponding path program 333 times [2022-03-15 15:24:42,746 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:42,746 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017179389] [2022-03-15 15:24:42,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:42,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:42,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:42,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:42,816 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:42,816 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017179389] [2022-03-15 15:24:42,816 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017179389] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:42,816 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:42,816 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:42,816 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391426523] [2022-03-15 15:24:42,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:42,816 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:42,816 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:42,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:42,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:42,817 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) [2022-03-15 15:24:43,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:43,056 INFO L93 Difference]: Finished difference Result 696 states and 1757 transitions. [2022-03-15 15:24:43,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:43,056 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:43,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:43,057 INFO L225 Difference]: With dead ends: 696 [2022-03-15 15:24:43,057 INFO L226 Difference]: Without dead ends: 605 [2022-03-15 15:24:43,057 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:43,057 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 [2022-03-15 15:24:43,057 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] [2022-03-15 15:24:43,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2022-03-15 15:24:43,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 576. [2022-03-15 15:24:43,062 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) [2022-03-15 15:24:43,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 1469 transitions. [2022-03-15 15:24:43,062 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 1469 transitions. Word has length 26 [2022-03-15 15:24:43,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:43,062 INFO L470 AbstractCegarLoop]: Abstraction has 576 states and 1469 transitions. [2022-03-15 15:24:43,062 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:43,063 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 1469 transitions. [2022-03-15 15:24:43,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:43,063 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:43,063 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:43,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable334 [2022-03-15 15:24:43,063 INFO L402 AbstractCegarLoop]: === Iteration 336 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:43,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:43,064 INFO L85 PathProgramCache]: Analyzing trace with hash 697098483, now seen corresponding path program 334 times [2022-03-15 15:24:43,064 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:43,064 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957909791] [2022-03-15 15:24:43,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:43,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:43,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:43,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:43,133 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:43,133 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957909791] [2022-03-15 15:24:43,133 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957909791] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:43,133 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:43,133 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:43,133 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13501958] [2022-03-15 15:24:43,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:43,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:43,134 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:43,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:43,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:43,134 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) [2022-03-15 15:24:43,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:43,368 INFO L93 Difference]: Finished difference Result 692 states and 1748 transitions. [2022-03-15 15:24:43,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:43,368 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 [2022-03-15 15:24:43,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:43,369 INFO L225 Difference]: With dead ends: 692 [2022-03-15 15:24:43,369 INFO L226 Difference]: Without dead ends: 599 [2022-03-15 15:24:43,369 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:43,369 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 [2022-03-15 15:24:43,369 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] [2022-03-15 15:24:43,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2022-03-15 15:24:43,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 572. [2022-03-15 15:24:43,374 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) [2022-03-15 15:24:43,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 1459 transitions. [2022-03-15 15:24:43,375 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 1459 transitions. Word has length 26 [2022-03-15 15:24:43,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:43,375 INFO L470 AbstractCegarLoop]: Abstraction has 572 states and 1459 transitions. [2022-03-15 15:24:43,375 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) [2022-03-15 15:24:43,375 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 1459 transitions. [2022-03-15 15:24:43,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:43,376 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:43,376 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:43,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable335 [2022-03-15 15:24:43,376 INFO L402 AbstractCegarLoop]: === Iteration 337 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:43,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:43,376 INFO L85 PathProgramCache]: Analyzing trace with hash -565884949, now seen corresponding path program 335 times [2022-03-15 15:24:43,376 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:43,376 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954445988] [2022-03-15 15:24:43,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:43,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:43,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:43,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:43,446 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:43,446 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954445988] [2022-03-15 15:24:43,446 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954445988] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:43,446 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:43,446 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:43,446 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388836795] [2022-03-15 15:24:43,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:43,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:43,446 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:43,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:43,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:43,446 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) [2022-03-15 15:24:43,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:43,673 INFO L93 Difference]: Finished difference Result 712 states and 1795 transitions. [2022-03-15 15:24:43,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:43,673 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 [2022-03-15 15:24:43,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:43,674 INFO L225 Difference]: With dead ends: 712 [2022-03-15 15:24:43,674 INFO L226 Difference]: Without dead ends: 631 [2022-03-15 15:24:43,674 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 [2022-03-15 15:24:43,674 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 [2022-03-15 15:24:43,674 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] [2022-03-15 15:24:43,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2022-03-15 15:24:43,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 574. [2022-03-15 15:24:43,679 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) [2022-03-15 15:24:43,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 1469 transitions. [2022-03-15 15:24:43,680 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 1469 transitions. Word has length 26 [2022-03-15 15:24:43,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:43,680 INFO L470 AbstractCegarLoop]: Abstraction has 574 states and 1469 transitions. [2022-03-15 15:24:43,680 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:43,680 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 1469 transitions. [2022-03-15 15:24:43,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:43,681 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:43,681 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:43,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable336 [2022-03-15 15:24:43,681 INFO L402 AbstractCegarLoop]: === Iteration 338 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:43,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:43,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1792781421, now seen corresponding path program 336 times [2022-03-15 15:24:43,681 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:43,681 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643213470] [2022-03-15 15:24:43,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:43,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:43,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:43,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:43,752 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:43,752 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643213470] [2022-03-15 15:24:43,752 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643213470] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:43,752 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:43,752 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:43,752 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839978596] [2022-03-15 15:24:43,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:43,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:43,752 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:43,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:43,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:43,752 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) [2022-03-15 15:24:43,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:43,990 INFO L93 Difference]: Finished difference Result 690 states and 1756 transitions. [2022-03-15 15:24:43,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:43,990 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:43,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:43,991 INFO L225 Difference]: With dead ends: 690 [2022-03-15 15:24:43,991 INFO L226 Difference]: Without dead ends: 599 [2022-03-15 15:24:43,991 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:43,991 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 [2022-03-15 15:24:43,991 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] [2022-03-15 15:24:43,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2022-03-15 15:24:43,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 577. [2022-03-15 15:24:43,996 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) [2022-03-15 15:24:43,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 1475 transitions. [2022-03-15 15:24:43,997 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 1475 transitions. Word has length 26 [2022-03-15 15:24:43,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:43,997 INFO L470 AbstractCegarLoop]: Abstraction has 577 states and 1475 transitions. [2022-03-15 15:24:43,997 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:43,997 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 1475 transitions. [2022-03-15 15:24:43,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:43,997 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:43,997 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] [2022-03-15 15:24:43,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable337 [2022-03-15 15:24:43,997 INFO L402 AbstractCegarLoop]: === Iteration 339 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:43,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:43,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1135617899, now seen corresponding path program 337 times [2022-03-15 15:24:43,998 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:43,998 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749046299] [2022-03-15 15:24:43,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:43,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:44,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:44,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:44,085 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:44,085 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749046299] [2022-03-15 15:24:44,086 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749046299] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:44,086 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:44,086 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:44,086 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845568743] [2022-03-15 15:24:44,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:44,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:44,086 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:44,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:44,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:44,086 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) [2022-03-15 15:24:44,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:44,301 INFO L93 Difference]: Finished difference Result 686 states and 1730 transitions. [2022-03-15 15:24:44,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:44,301 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:44,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:44,302 INFO L225 Difference]: With dead ends: 686 [2022-03-15 15:24:44,302 INFO L226 Difference]: Without dead ends: 597 [2022-03-15 15:24:44,302 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 [2022-03-15 15:24:44,303 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 42 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 604 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:24:44,303 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] [2022-03-15 15:24:44,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2022-03-15 15:24:44,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 575. [2022-03-15 15:24:44,307 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) [2022-03-15 15:24:44,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 1467 transitions. [2022-03-15 15:24:44,308 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 1467 transitions. Word has length 26 [2022-03-15 15:24:44,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:44,308 INFO L470 AbstractCegarLoop]: Abstraction has 575 states and 1467 transitions. [2022-03-15 15:24:44,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:44,308 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 1467 transitions. [2022-03-15 15:24:44,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:44,309 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:44,309 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:44,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable338 [2022-03-15 15:24:44,309 INFO L402 AbstractCegarLoop]: === Iteration 340 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:44,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:44,309 INFO L85 PathProgramCache]: Analyzing trace with hash -192948023, now seen corresponding path program 338 times [2022-03-15 15:24:44,309 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:44,309 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570983631] [2022-03-15 15:24:44,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:44,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:44,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:44,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:44,380 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:44,381 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570983631] [2022-03-15 15:24:44,381 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570983631] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:44,381 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:44,381 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:44,381 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312735888] [2022-03-15 15:24:44,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:44,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:44,381 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:44,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:44,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:44,381 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) [2022-03-15 15:24:44,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:44,627 INFO L93 Difference]: Finished difference Result 678 states and 1726 transitions. [2022-03-15 15:24:44,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:44,628 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 [2022-03-15 15:24:44,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:44,629 INFO L225 Difference]: With dead ends: 678 [2022-03-15 15:24:44,629 INFO L226 Difference]: Without dead ends: 582 [2022-03-15 15:24:44,629 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:44,629 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 [2022-03-15 15:24:44,629 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] [2022-03-15 15:24:44,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2022-03-15 15:24:44,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 570. [2022-03-15 15:24:44,634 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) [2022-03-15 15:24:44,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 1455 transitions. [2022-03-15 15:24:44,634 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 1455 transitions. Word has length 26 [2022-03-15 15:24:44,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:44,634 INFO L470 AbstractCegarLoop]: Abstraction has 570 states and 1455 transitions. [2022-03-15 15:24:44,634 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) [2022-03-15 15:24:44,634 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 1455 transitions. [2022-03-15 15:24:44,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:44,635 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:44,635 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:44,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable339 [2022-03-15 15:24:44,635 INFO L402 AbstractCegarLoop]: === Iteration 341 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:44,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:44,635 INFO L85 PathProgramCache]: Analyzing trace with hash -366224555, now seen corresponding path program 339 times [2022-03-15 15:24:44,635 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:44,636 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486144584] [2022-03-15 15:24:44,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:44,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:44,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:44,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:44,706 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:44,706 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486144584] [2022-03-15 15:24:44,706 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486144584] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:44,706 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:44,706 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:44,707 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734461835] [2022-03-15 15:24:44,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:44,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:44,707 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:44,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:44,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:44,707 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) [2022-03-15 15:24:44,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:44,943 INFO L93 Difference]: Finished difference Result 701 states and 1771 transitions. [2022-03-15 15:24:44,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:44,943 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:44,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:44,944 INFO L225 Difference]: With dead ends: 701 [2022-03-15 15:24:44,944 INFO L226 Difference]: Without dead ends: 610 [2022-03-15 15:24:44,944 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:44,944 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 [2022-03-15 15:24:44,945 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] [2022-03-15 15:24:44,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2022-03-15 15:24:44,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 585. [2022-03-15 15:24:44,949 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) [2022-03-15 15:24:44,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 1488 transitions. [2022-03-15 15:24:44,950 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 1488 transitions. Word has length 26 [2022-03-15 15:24:44,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:44,950 INFO L470 AbstractCegarLoop]: Abstraction has 585 states and 1488 transitions. [2022-03-15 15:24:44,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:44,950 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 1488 transitions. [2022-03-15 15:24:44,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:44,951 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:44,951 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:44,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable340 [2022-03-15 15:24:44,951 INFO L402 AbstractCegarLoop]: === Iteration 342 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:44,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:44,951 INFO L85 PathProgramCache]: Analyzing trace with hash -1758369101, now seen corresponding path program 340 times [2022-03-15 15:24:44,951 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:44,951 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139396138] [2022-03-15 15:24:44,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:44,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:44,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:45,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:45,025 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:45,025 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139396138] [2022-03-15 15:24:45,026 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139396138] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:45,026 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:45,026 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:45,026 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742945278] [2022-03-15 15:24:45,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:45,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:45,026 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:45,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:45,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:45,026 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) [2022-03-15 15:24:45,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:45,267 INFO L93 Difference]: Finished difference Result 693 states and 1757 transitions. [2022-03-15 15:24:45,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:45,268 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:45,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:45,268 INFO L225 Difference]: With dead ends: 693 [2022-03-15 15:24:45,268 INFO L226 Difference]: Without dead ends: 596 [2022-03-15 15:24:45,268 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:45,268 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 [2022-03-15 15:24:45,269 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] [2022-03-15 15:24:45,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2022-03-15 15:24:45,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 583. [2022-03-15 15:24:45,273 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) [2022-03-15 15:24:45,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 1483 transitions. [2022-03-15 15:24:45,274 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 1483 transitions. Word has length 26 [2022-03-15 15:24:45,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:45,274 INFO L470 AbstractCegarLoop]: Abstraction has 583 states and 1483 transitions. [2022-03-15 15:24:45,274 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:45,274 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 1483 transitions. [2022-03-15 15:24:45,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:45,275 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:45,275 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:45,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable341 [2022-03-15 15:24:45,275 INFO L402 AbstractCegarLoop]: === Iteration 343 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:45,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:45,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1627750985, now seen corresponding path program 341 times [2022-03-15 15:24:45,275 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:45,275 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695392928] [2022-03-15 15:24:45,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:45,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:45,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:45,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:45,356 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:45,356 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695392928] [2022-03-15 15:24:45,356 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695392928] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:45,356 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:45,356 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:45,356 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15534584] [2022-03-15 15:24:45,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:45,356 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:45,356 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:45,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:45,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:45,357 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) [2022-03-15 15:24:45,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:45,601 INFO L93 Difference]: Finished difference Result 728 states and 1837 transitions. [2022-03-15 15:24:45,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:45,601 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:45,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:45,602 INFO L225 Difference]: With dead ends: 728 [2022-03-15 15:24:45,602 INFO L226 Difference]: Without dead ends: 613 [2022-03-15 15:24:45,602 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 [2022-03-15 15:24:45,602 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 [2022-03-15 15:24:45,602 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] [2022-03-15 15:24:45,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2022-03-15 15:24:45,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 583. [2022-03-15 15:24:45,607 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) [2022-03-15 15:24:45,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 1475 transitions. [2022-03-15 15:24:45,608 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 1475 transitions. Word has length 26 [2022-03-15 15:24:45,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:45,608 INFO L470 AbstractCegarLoop]: Abstraction has 583 states and 1475 transitions. [2022-03-15 15:24:45,608 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) [2022-03-15 15:24:45,608 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 1475 transitions. [2022-03-15 15:24:45,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:45,608 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:45,608 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:45,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable342 [2022-03-15 15:24:45,608 INFO L402 AbstractCegarLoop]: === Iteration 344 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:45,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:45,609 INFO L85 PathProgramCache]: Analyzing trace with hash -1427002645, now seen corresponding path program 342 times [2022-03-15 15:24:45,609 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:45,609 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199852766] [2022-03-15 15:24:45,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:45,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:45,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:45,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:45,677 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:45,677 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199852766] [2022-03-15 15:24:45,677 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199852766] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:45,677 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:45,677 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:45,678 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305711531] [2022-03-15 15:24:45,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:45,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:45,678 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:45,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:45,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:45,678 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) [2022-03-15 15:24:45,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:45,915 INFO L93 Difference]: Finished difference Result 717 states and 1804 transitions. [2022-03-15 15:24:45,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:45,915 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:45,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:45,916 INFO L225 Difference]: With dead ends: 717 [2022-03-15 15:24:45,916 INFO L226 Difference]: Without dead ends: 626 [2022-03-15 15:24:45,916 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:45,917 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 [2022-03-15 15:24:45,917 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] [2022-03-15 15:24:45,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2022-03-15 15:24:45,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 583. [2022-03-15 15:24:45,921 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) [2022-03-15 15:24:45,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 1475 transitions. [2022-03-15 15:24:45,922 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 1475 transitions. Word has length 26 [2022-03-15 15:24:45,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:45,922 INFO L470 AbstractCegarLoop]: Abstraction has 583 states and 1475 transitions. [2022-03-15 15:24:45,922 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) [2022-03-15 15:24:45,922 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 1475 transitions. [2022-03-15 15:24:45,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:45,923 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:45,923 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:45,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable343 [2022-03-15 15:24:45,923 INFO L402 AbstractCegarLoop]: === Iteration 345 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:45,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:45,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1475820105, now seen corresponding path program 343 times [2022-03-15 15:24:45,923 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:45,923 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082049832] [2022-03-15 15:24:45,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:45,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:45,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:46,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:46,004 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:46,004 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082049832] [2022-03-15 15:24:46,005 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082049832] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:46,005 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:46,005 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:46,005 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060142311] [2022-03-15 15:24:46,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:46,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:46,005 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:46,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:46,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:46,006 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) [2022-03-15 15:24:46,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:46,272 INFO L93 Difference]: Finished difference Result 697 states and 1755 transitions. [2022-03-15 15:24:46,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:46,272 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:46,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:46,273 INFO L225 Difference]: With dead ends: 697 [2022-03-15 15:24:46,273 INFO L226 Difference]: Without dead ends: 590 [2022-03-15 15:24:46,273 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 [2022-03-15 15:24:46,273 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 15:24:46,273 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 272 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 680 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 15:24:46,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2022-03-15 15:24:46,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 566. [2022-03-15 15:24:46,278 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) [2022-03-15 15:24:46,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 1427 transitions. [2022-03-15 15:24:46,278 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 1427 transitions. Word has length 26 [2022-03-15 15:24:46,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:46,278 INFO L470 AbstractCegarLoop]: Abstraction has 566 states and 1427 transitions. [2022-03-15 15:24:46,279 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) [2022-03-15 15:24:46,279 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 1427 transitions. [2022-03-15 15:24:46,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:46,279 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:46,279 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:46,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable344 [2022-03-15 15:24:46,279 INFO L402 AbstractCegarLoop]: === Iteration 346 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:46,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:46,280 INFO L85 PathProgramCache]: Analyzing trace with hash -611678313, now seen corresponding path program 344 times [2022-03-15 15:24:46,280 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:46,280 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724059221] [2022-03-15 15:24:46,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:46,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:46,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:46,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:46,347 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:46,347 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724059221] [2022-03-15 15:24:46,347 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724059221] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:46,348 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:46,348 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:46,348 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562545417] [2022-03-15 15:24:46,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:46,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:46,348 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:46,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:46,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:46,348 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) [2022-03-15 15:24:46,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:46,584 INFO L93 Difference]: Finished difference Result 710 states and 1782 transitions. [2022-03-15 15:24:46,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:46,585 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:46,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:46,585 INFO L225 Difference]: With dead ends: 710 [2022-03-15 15:24:46,585 INFO L226 Difference]: Without dead ends: 593 [2022-03-15 15:24:46,585 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:46,586 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 [2022-03-15 15:24:46,586 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] [2022-03-15 15:24:46,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2022-03-15 15:24:46,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 593. [2022-03-15 15:24:46,590 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) [2022-03-15 15:24:46,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 1481 transitions. [2022-03-15 15:24:46,591 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 1481 transitions. Word has length 26 [2022-03-15 15:24:46,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:46,591 INFO L470 AbstractCegarLoop]: Abstraction has 593 states and 1481 transitions. [2022-03-15 15:24:46,591 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:46,591 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 1481 transitions. [2022-03-15 15:24:46,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:46,592 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:46,592 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] [2022-03-15 15:24:46,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable345 [2022-03-15 15:24:46,592 INFO L402 AbstractCegarLoop]: === Iteration 347 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:46,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:46,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1530859435, now seen corresponding path program 345 times [2022-03-15 15:24:46,592 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:46,592 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471692897] [2022-03-15 15:24:46,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:46,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:46,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:46,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:46,660 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:46,660 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471692897] [2022-03-15 15:24:46,660 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471692897] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:46,660 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:46,660 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:46,660 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264578053] [2022-03-15 15:24:46,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:46,660 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:46,660 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:46,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:46,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:46,660 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) [2022-03-15 15:24:46,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:46,899 INFO L93 Difference]: Finished difference Result 725 states and 1802 transitions. [2022-03-15 15:24:46,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:46,900 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:46,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:46,900 INFO L225 Difference]: With dead ends: 725 [2022-03-15 15:24:46,900 INFO L226 Difference]: Without dead ends: 603 [2022-03-15 15:24:46,900 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:46,901 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 [2022-03-15 15:24:46,901 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] [2022-03-15 15:24:46,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2022-03-15 15:24:46,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 593. [2022-03-15 15:24:46,905 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) [2022-03-15 15:24:46,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 1478 transitions. [2022-03-15 15:24:46,906 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 1478 transitions. Word has length 26 [2022-03-15 15:24:46,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:46,906 INFO L470 AbstractCegarLoop]: Abstraction has 593 states and 1478 transitions. [2022-03-15 15:24:46,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:46,906 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 1478 transitions. [2022-03-15 15:24:46,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:46,907 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:46,907 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:46,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable346 [2022-03-15 15:24:46,907 INFO L402 AbstractCegarLoop]: === Iteration 348 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:46,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:46,907 INFO L85 PathProgramCache]: Analyzing trace with hash -634239077, now seen corresponding path program 346 times [2022-03-15 15:24:46,907 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:46,907 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181683043] [2022-03-15 15:24:46,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:46,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:46,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:46,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:46,981 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:46,981 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181683043] [2022-03-15 15:24:46,981 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181683043] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:46,981 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:46,981 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:46,981 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063636822] [2022-03-15 15:24:46,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:46,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:46,982 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:46,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:46,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:46,982 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) [2022-03-15 15:24:47,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:47,220 INFO L93 Difference]: Finished difference Result 740 states and 1834 transitions. [2022-03-15 15:24:47,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:47,220 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:47,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:47,221 INFO L225 Difference]: With dead ends: 740 [2022-03-15 15:24:47,221 INFO L226 Difference]: Without dead ends: 591 [2022-03-15 15:24:47,221 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:47,221 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 [2022-03-15 15:24:47,221 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] [2022-03-15 15:24:47,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2022-03-15 15:24:47,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 581. [2022-03-15 15:24:47,226 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) [2022-03-15 15:24:47,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 1442 transitions. [2022-03-15 15:24:47,227 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 1442 transitions. Word has length 26 [2022-03-15 15:24:47,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:47,227 INFO L470 AbstractCegarLoop]: Abstraction has 581 states and 1442 transitions. [2022-03-15 15:24:47,227 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:47,227 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 1442 transitions. [2022-03-15 15:24:47,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:47,228 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:47,228 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] [2022-03-15 15:24:47,228 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable347 [2022-03-15 15:24:47,228 INFO L402 AbstractCegarLoop]: === Iteration 349 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:47,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:47,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1888711655, now seen corresponding path program 347 times [2022-03-15 15:24:47,228 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:47,228 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409024954] [2022-03-15 15:24:47,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:47,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:47,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:47,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:47,296 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:47,297 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409024954] [2022-03-15 15:24:47,297 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409024954] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:47,297 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:47,297 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:47,297 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804213541] [2022-03-15 15:24:47,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:47,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:47,297 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:47,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:47,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:47,297 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) [2022-03-15 15:24:47,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:47,532 INFO L93 Difference]: Finished difference Result 702 states and 1738 transitions. [2022-03-15 15:24:47,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:47,533 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:47,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:47,533 INFO L225 Difference]: With dead ends: 702 [2022-03-15 15:24:47,533 INFO L226 Difference]: Without dead ends: 558 [2022-03-15 15:24:47,533 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 [2022-03-15 15:24:47,534 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 [2022-03-15 15:24:47,534 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] [2022-03-15 15:24:47,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2022-03-15 15:24:47,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 542. [2022-03-15 15:24:47,538 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) [2022-03-15 15:24:47,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 1349 transitions. [2022-03-15 15:24:47,539 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 1349 transitions. Word has length 26 [2022-03-15 15:24:47,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:47,539 INFO L470 AbstractCegarLoop]: Abstraction has 542 states and 1349 transitions. [2022-03-15 15:24:47,539 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) [2022-03-15 15:24:47,539 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 1349 transitions. [2022-03-15 15:24:47,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:47,539 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:47,539 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:47,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable348 [2022-03-15 15:24:47,539 INFO L402 AbstractCegarLoop]: === Iteration 350 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:47,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:47,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1640870661, now seen corresponding path program 348 times [2022-03-15 15:24:47,540 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:47,540 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803811491] [2022-03-15 15:24:47,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:47,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:47,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:47,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:47,616 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:47,616 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803811491] [2022-03-15 15:24:47,616 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803811491] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:47,616 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:47,616 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:47,616 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702477303] [2022-03-15 15:24:47,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:47,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:47,617 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:47,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:47,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:47,617 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) [2022-03-15 15:24:47,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:47,840 INFO L93 Difference]: Finished difference Result 644 states and 1595 transitions. [2022-03-15 15:24:47,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:47,840 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:47,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:47,841 INFO L225 Difference]: With dead ends: 644 [2022-03-15 15:24:47,841 INFO L226 Difference]: Without dead ends: 561 [2022-03-15 15:24:47,841 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:47,841 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 [2022-03-15 15:24:47,841 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] [2022-03-15 15:24:47,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2022-03-15 15:24:47,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 530. [2022-03-15 15:24:47,845 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) [2022-03-15 15:24:47,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 1306 transitions. [2022-03-15 15:24:47,846 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 1306 transitions. Word has length 26 [2022-03-15 15:24:47,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:47,846 INFO L470 AbstractCegarLoop]: Abstraction has 530 states and 1306 transitions. [2022-03-15 15:24:47,846 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:47,846 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 1306 transitions. [2022-03-15 15:24:47,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:47,847 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:47,847 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:47,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable349 [2022-03-15 15:24:47,847 INFO L402 AbstractCegarLoop]: === Iteration 351 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:47,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:47,847 INFO L85 PathProgramCache]: Analyzing trace with hash 717795709, now seen corresponding path program 349 times [2022-03-15 15:24:47,847 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:47,847 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820650615] [2022-03-15 15:24:47,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:47,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:47,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:47,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:47,917 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:47,917 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820650615] [2022-03-15 15:24:47,917 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820650615] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:47,917 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:47,917 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:47,917 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701054485] [2022-03-15 15:24:47,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:47,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:47,917 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:47,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:47,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:47,917 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) [2022-03-15 15:24:48,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:48,150 INFO L93 Difference]: Finished difference Result 663 states and 1624 transitions. [2022-03-15 15:24:48,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:48,151 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 [2022-03-15 15:24:48,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:48,152 INFO L225 Difference]: With dead ends: 663 [2022-03-15 15:24:48,152 INFO L226 Difference]: Without dead ends: 572 [2022-03-15 15:24:48,152 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 [2022-03-15 15:24:48,153 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 [2022-03-15 15:24:48,153 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] [2022-03-15 15:24:48,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2022-03-15 15:24:48,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 536. [2022-03-15 15:24:48,158 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) [2022-03-15 15:24:48,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 1315 transitions. [2022-03-15 15:24:48,159 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 1315 transitions. Word has length 26 [2022-03-15 15:24:48,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:48,159 INFO L470 AbstractCegarLoop]: Abstraction has 536 states and 1315 transitions. [2022-03-15 15:24:48,159 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:48,159 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 1315 transitions. [2022-03-15 15:24:48,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:48,159 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:48,159 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] [2022-03-15 15:24:48,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable350 [2022-03-15 15:24:48,160 INFO L402 AbstractCegarLoop]: === Iteration 352 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:48,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:48,160 INFO L85 PathProgramCache]: Analyzing trace with hash 60632187, now seen corresponding path program 350 times [2022-03-15 15:24:48,160 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:48,160 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638281141] [2022-03-15 15:24:48,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:48,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:48,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:48,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:48,232 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:48,232 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638281141] [2022-03-15 15:24:48,232 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638281141] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:48,232 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:48,232 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:48,232 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791627360] [2022-03-15 15:24:48,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:48,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:48,232 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:48,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:48,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:48,232 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) [2022-03-15 15:24:48,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:48,450 INFO L93 Difference]: Finished difference Result 635 states and 1558 transitions. [2022-03-15 15:24:48,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:48,450 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 [2022-03-15 15:24:48,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:48,451 INFO L225 Difference]: With dead ends: 635 [2022-03-15 15:24:48,451 INFO L226 Difference]: Without dead ends: 550 [2022-03-15 15:24:48,451 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:48,451 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 [2022-03-15 15:24:48,451 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] [2022-03-15 15:24:48,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2022-03-15 15:24:48,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 539. [2022-03-15 15:24:48,455 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) [2022-03-15 15:24:48,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 1320 transitions. [2022-03-15 15:24:48,456 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 1320 transitions. Word has length 26 [2022-03-15 15:24:48,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:48,456 INFO L470 AbstractCegarLoop]: Abstraction has 539 states and 1320 transitions. [2022-03-15 15:24:48,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:48,456 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 1320 transitions. [2022-03-15 15:24:48,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:48,457 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:48,457 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:48,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable351 [2022-03-15 15:24:48,457 INFO L402 AbstractCegarLoop]: === Iteration 353 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:48,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:48,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1267933735, now seen corresponding path program 351 times [2022-03-15 15:24:48,457 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:48,457 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684143025] [2022-03-15 15:24:48,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:48,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:48,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:48,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:48,525 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:48,525 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684143025] [2022-03-15 15:24:48,525 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684143025] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:48,526 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:48,526 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:48,526 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439450153] [2022-03-15 15:24:48,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:48,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:48,526 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:48,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:48,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:48,526 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) [2022-03-15 15:24:48,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:48,760 INFO L93 Difference]: Finished difference Result 642 states and 1579 transitions. [2022-03-15 15:24:48,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:48,760 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 [2022-03-15 15:24:48,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:48,761 INFO L225 Difference]: With dead ends: 642 [2022-03-15 15:24:48,761 INFO L226 Difference]: Without dead ends: 546 [2022-03-15 15:24:48,761 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 [2022-03-15 15:24:48,761 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 [2022-03-15 15:24:48,761 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] [2022-03-15 15:24:48,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2022-03-15 15:24:48,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 536. [2022-03-15 15:24:48,766 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) [2022-03-15 15:24:48,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 1314 transitions. [2022-03-15 15:24:48,766 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 1314 transitions. Word has length 26 [2022-03-15 15:24:48,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:48,766 INFO L470 AbstractCegarLoop]: Abstraction has 536 states and 1314 transitions. [2022-03-15 15:24:48,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:48,766 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 1314 transitions. [2022-03-15 15:24:48,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:48,767 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:48,767 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] [2022-03-15 15:24:48,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable352 [2022-03-15 15:24:48,767 INFO L402 AbstractCegarLoop]: === Iteration 354 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:48,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:48,767 INFO L85 PathProgramCache]: Analyzing trace with hash 1412249659, now seen corresponding path program 352 times [2022-03-15 15:24:48,767 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:48,767 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026025493] [2022-03-15 15:24:48,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:48,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:48,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:48,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:48,836 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:48,837 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026025493] [2022-03-15 15:24:48,837 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026025493] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:48,837 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:48,837 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:48,837 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123447174] [2022-03-15 15:24:48,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:48,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:48,837 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:48,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:48,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:48,837 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) [2022-03-15 15:24:49,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:49,049 INFO L93 Difference]: Finished difference Result 646 states and 1576 transitions. [2022-03-15 15:24:49,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:49,050 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 [2022-03-15 15:24:49,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:49,050 INFO L225 Difference]: With dead ends: 646 [2022-03-15 15:24:49,050 INFO L226 Difference]: Without dead ends: 559 [2022-03-15 15:24:49,050 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 [2022-03-15 15:24:49,051 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 41 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:24:49,051 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] [2022-03-15 15:24:49,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2022-03-15 15:24:49,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 530. [2022-03-15 15:24:49,055 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) [2022-03-15 15:24:49,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 1295 transitions. [2022-03-15 15:24:49,056 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 1295 transitions. Word has length 26 [2022-03-15 15:24:49,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:49,056 INFO L470 AbstractCegarLoop]: Abstraction has 530 states and 1295 transitions. [2022-03-15 15:24:49,056 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:49,056 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 1295 transitions. [2022-03-15 15:24:49,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:49,056 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:49,056 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:49,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable353 [2022-03-15 15:24:49,057 INFO L402 AbstractCegarLoop]: === Iteration 355 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:49,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:49,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1441210267, now seen corresponding path program 353 times [2022-03-15 15:24:49,057 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:49,057 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359067267] [2022-03-15 15:24:49,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:49,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:49,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:49,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:49,140 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:49,140 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359067267] [2022-03-15 15:24:49,140 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359067267] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:49,140 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:49,140 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:49,140 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291898603] [2022-03-15 15:24:49,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:49,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:49,140 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:49,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:49,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:49,141 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) [2022-03-15 15:24:49,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:49,386 INFO L93 Difference]: Finished difference Result 658 states and 1602 transitions. [2022-03-15 15:24:49,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:49,387 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:49,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:49,387 INFO L225 Difference]: With dead ends: 658 [2022-03-15 15:24:49,387 INFO L226 Difference]: Without dead ends: 567 [2022-03-15 15:24:49,387 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 [2022-03-15 15:24:49,388 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 [2022-03-15 15:24:49,388 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] [2022-03-15 15:24:49,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2022-03-15 15:24:49,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 530. [2022-03-15 15:24:49,392 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) [2022-03-15 15:24:49,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 1295 transitions. [2022-03-15 15:24:49,392 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 1295 transitions. Word has length 26 [2022-03-15 15:24:49,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:49,392 INFO L470 AbstractCegarLoop]: Abstraction has 530 states and 1295 transitions. [2022-03-15 15:24:49,393 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) [2022-03-15 15:24:49,393 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 1295 transitions. [2022-03-15 15:24:49,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:49,393 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:49,393 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:49,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable354 [2022-03-15 15:24:49,393 INFO L402 AbstractCegarLoop]: === Iteration 356 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:49,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:49,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1461612483, now seen corresponding path program 354 times [2022-03-15 15:24:49,394 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:49,394 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209766248] [2022-03-15 15:24:49,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:49,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:49,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:49,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:49,462 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:49,462 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209766248] [2022-03-15 15:24:49,463 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209766248] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:49,463 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:49,463 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:49,463 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786391544] [2022-03-15 15:24:49,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:49,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:49,463 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:49,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:49,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:49,463 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) [2022-03-15 15:24:49,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:49,693 INFO L93 Difference]: Finished difference Result 638 states and 1564 transitions. [2022-03-15 15:24:49,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:49,693 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:49,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:49,694 INFO L225 Difference]: With dead ends: 638 [2022-03-15 15:24:49,694 INFO L226 Difference]: Without dead ends: 541 [2022-03-15 15:24:49,694 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:49,694 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 [2022-03-15 15:24:49,694 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] [2022-03-15 15:24:49,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2022-03-15 15:24:49,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 528. [2022-03-15 15:24:49,699 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) [2022-03-15 15:24:49,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 1290 transitions. [2022-03-15 15:24:49,699 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 1290 transitions. Word has length 26 [2022-03-15 15:24:49,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:49,699 INFO L470 AbstractCegarLoop]: Abstraction has 528 states and 1290 transitions. [2022-03-15 15:24:49,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:49,699 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 1290 transitions. [2022-03-15 15:24:49,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:49,700 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:49,700 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] [2022-03-15 15:24:49,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable355 [2022-03-15 15:24:49,700 INFO L402 AbstractCegarLoop]: === Iteration 357 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:49,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:49,700 INFO L85 PathProgramCache]: Analyzing trace with hash -1000145903, now seen corresponding path program 355 times [2022-03-15 15:24:49,700 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:49,701 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29152875] [2022-03-15 15:24:49,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:49,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:49,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:49,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:49,769 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:49,769 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29152875] [2022-03-15 15:24:49,769 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29152875] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:49,769 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:49,769 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:49,769 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008127715] [2022-03-15 15:24:49,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:49,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:49,769 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:49,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:49,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:49,770 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) [2022-03-15 15:24:49,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:49,990 INFO L93 Difference]: Finished difference Result 621 states and 1513 transitions. [2022-03-15 15:24:49,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:49,990 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:49,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:49,991 INFO L225 Difference]: With dead ends: 621 [2022-03-15 15:24:49,991 INFO L226 Difference]: Without dead ends: 536 [2022-03-15 15:24:49,991 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:49,991 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 [2022-03-15 15:24:49,991 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] [2022-03-15 15:24:49,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2022-03-15 15:24:49,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 516. [2022-03-15 15:24:49,995 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) [2022-03-15 15:24:49,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 1260 transitions. [2022-03-15 15:24:49,996 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 1260 transitions. Word has length 26 [2022-03-15 15:24:49,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:49,996 INFO L470 AbstractCegarLoop]: Abstraction has 516 states and 1260 transitions. [2022-03-15 15:24:49,996 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) [2022-03-15 15:24:49,996 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 1260 transitions. [2022-03-15 15:24:49,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:49,996 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:49,996 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:49,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable356 [2022-03-15 15:24:49,997 INFO L402 AbstractCegarLoop]: === Iteration 358 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:49,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:49,997 INFO L85 PathProgramCache]: Analyzing trace with hash 1966255471, now seen corresponding path program 356 times [2022-03-15 15:24:49,997 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:49,997 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314198715] [2022-03-15 15:24:49,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:49,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:49,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:50,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:50,068 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:50,068 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314198715] [2022-03-15 15:24:50,068 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314198715] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:50,068 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:50,068 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:50,068 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240669] [2022-03-15 15:24:50,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:50,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:50,068 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:50,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:50,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:50,069 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) [2022-03-15 15:24:50,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:50,310 INFO L93 Difference]: Finished difference Result 643 states and 1566 transitions. [2022-03-15 15:24:50,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:50,310 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:50,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:50,311 INFO L225 Difference]: With dead ends: 643 [2022-03-15 15:24:50,311 INFO L226 Difference]: Without dead ends: 541 [2022-03-15 15:24:50,311 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:50,311 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 [2022-03-15 15:24:50,311 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] [2022-03-15 15:24:50,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2022-03-15 15:24:50,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 501. [2022-03-15 15:24:50,315 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) [2022-03-15 15:24:50,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 1231 transitions. [2022-03-15 15:24:50,316 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 1231 transitions. Word has length 26 [2022-03-15 15:24:50,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:50,316 INFO L470 AbstractCegarLoop]: Abstraction has 501 states and 1231 transitions. [2022-03-15 15:24:50,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:50,316 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 1231 transitions. [2022-03-15 15:24:50,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:50,317 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:50,317 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:50,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable357 [2022-03-15 15:24:50,317 INFO L402 AbstractCegarLoop]: === Iteration 359 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:50,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:50,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1296410551, now seen corresponding path program 357 times [2022-03-15 15:24:50,317 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:50,317 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450183319] [2022-03-15 15:24:50,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:50,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:50,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:50,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:50,388 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:50,388 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450183319] [2022-03-15 15:24:50,388 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450183319] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:50,388 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:50,388 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:50,388 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918884810] [2022-03-15 15:24:50,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:50,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:50,388 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:50,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:50,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:50,389 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) [2022-03-15 15:24:50,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:50,624 INFO L93 Difference]: Finished difference Result 600 states and 1466 transitions. [2022-03-15 15:24:50,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:50,624 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:50,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:50,625 INFO L225 Difference]: With dead ends: 600 [2022-03-15 15:24:50,625 INFO L226 Difference]: Without dead ends: 459 [2022-03-15 15:24:50,625 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:50,625 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 [2022-03-15 15:24:50,625 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] [2022-03-15 15:24:50,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2022-03-15 15:24:50,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 419. [2022-03-15 15:24:50,629 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) [2022-03-15 15:24:50,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 1031 transitions. [2022-03-15 15:24:50,629 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 1031 transitions. Word has length 26 [2022-03-15 15:24:50,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:50,629 INFO L470 AbstractCegarLoop]: Abstraction has 419 states and 1031 transitions. [2022-03-15 15:24:50,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:50,630 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 1031 transitions. [2022-03-15 15:24:50,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:50,630 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:50,630 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] [2022-03-15 15:24:50,630 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable358 [2022-03-15 15:24:50,630 INFO L402 AbstractCegarLoop]: === Iteration 360 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:50,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:50,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1053952619, now seen corresponding path program 358 times [2022-03-15 15:24:50,630 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:50,630 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100478600] [2022-03-15 15:24:50,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:50,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:50,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:50,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:50,699 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:50,699 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100478600] [2022-03-15 15:24:50,699 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100478600] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:50,699 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:50,699 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:50,699 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471061472] [2022-03-15 15:24:50,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:50,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:50,699 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:50,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:50,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:50,700 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) [2022-03-15 15:24:50,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:50,939 INFO L93 Difference]: Finished difference Result 544 states and 1325 transitions. [2022-03-15 15:24:50,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:50,939 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:50,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:50,940 INFO L225 Difference]: With dead ends: 544 [2022-03-15 15:24:50,940 INFO L226 Difference]: Without dead ends: 423 [2022-03-15 15:24:50,940 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:50,940 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 [2022-03-15 15:24:50,940 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] [2022-03-15 15:24:50,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2022-03-15 15:24:50,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 419. [2022-03-15 15:24:50,944 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) [2022-03-15 15:24:50,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 1021 transitions. [2022-03-15 15:24:50,944 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 1021 transitions. Word has length 26 [2022-03-15 15:24:50,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:50,945 INFO L470 AbstractCegarLoop]: Abstraction has 419 states and 1021 transitions. [2022-03-15 15:24:50,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:50,945 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 1021 transitions. [2022-03-15 15:24:50,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:50,945 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:50,945 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:50,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable359 [2022-03-15 15:24:50,945 INFO L402 AbstractCegarLoop]: === Iteration 361 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:50,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:50,945 INFO L85 PathProgramCache]: Analyzing trace with hash 342627403, now seen corresponding path program 359 times [2022-03-15 15:24:50,946 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:50,946 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984413845] [2022-03-15 15:24:50,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:50,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:50,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:51,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:51,014 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:51,014 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984413845] [2022-03-15 15:24:51,014 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984413845] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:51,014 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:51,015 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:51,015 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086406189] [2022-03-15 15:24:51,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:51,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:51,015 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:51,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:51,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:51,015 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) [2022-03-15 15:24:51,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:51,248 INFO L93 Difference]: Finished difference Result 545 states and 1321 transitions. [2022-03-15 15:24:51,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:51,248 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 [2022-03-15 15:24:51,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:51,249 INFO L225 Difference]: With dead ends: 545 [2022-03-15 15:24:51,249 INFO L226 Difference]: Without dead ends: 429 [2022-03-15 15:24:51,249 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:51,249 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 [2022-03-15 15:24:51,249 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] [2022-03-15 15:24:51,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2022-03-15 15:24:51,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 423. [2022-03-15 15:24:51,253 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) [2022-03-15 15:24:51,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 1028 transitions. [2022-03-15 15:24:51,253 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 1028 transitions. Word has length 26 [2022-03-15 15:24:51,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:51,253 INFO L470 AbstractCegarLoop]: Abstraction has 423 states and 1028 transitions. [2022-03-15 15:24:51,253 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:51,253 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 1028 transitions. [2022-03-15 15:24:51,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:51,254 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:51,254 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] [2022-03-15 15:24:51,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable360 [2022-03-15 15:24:51,254 INFO L402 AbstractCegarLoop]: === Iteration 362 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:51,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:51,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1226301139, now seen corresponding path program 360 times [2022-03-15 15:24:51,254 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:51,254 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549713970] [2022-03-15 15:24:51,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:51,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:51,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:51,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:51,325 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:51,326 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549713970] [2022-03-15 15:24:51,326 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549713970] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:51,326 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:51,326 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:51,326 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620658541] [2022-03-15 15:24:51,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:51,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:51,326 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:51,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:51,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:51,326 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) [2022-03-15 15:24:51,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:51,561 INFO L93 Difference]: Finished difference Result 536 states and 1302 transitions. [2022-03-15 15:24:51,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:51,562 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 [2022-03-15 15:24:51,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:51,562 INFO L225 Difference]: With dead ends: 536 [2022-03-15 15:24:51,562 INFO L226 Difference]: Without dead ends: 417 [2022-03-15 15:24:51,562 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:51,563 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 [2022-03-15 15:24:51,563 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] [2022-03-15 15:24:51,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2022-03-15 15:24:51,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 409. [2022-03-15 15:24:51,566 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) [2022-03-15 15:24:51,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 1001 transitions. [2022-03-15 15:24:51,566 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 1001 transitions. Word has length 26 [2022-03-15 15:24:51,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:51,567 INFO L470 AbstractCegarLoop]: Abstraction has 409 states and 1001 transitions. [2022-03-15 15:24:51,567 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:51,567 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 1001 transitions. [2022-03-15 15:24:51,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:51,567 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:51,567 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:51,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable361 [2022-03-15 15:24:51,567 INFO L402 AbstractCegarLoop]: === Iteration 363 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:51,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:51,567 INFO L85 PathProgramCache]: Analyzing trace with hash 814130831, now seen corresponding path program 361 times [2022-03-15 15:24:51,568 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:51,568 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975842427] [2022-03-15 15:24:51,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:51,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:51,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:51,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:51,647 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:51,647 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975842427] [2022-03-15 15:24:51,647 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975842427] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:51,647 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:51,647 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:24:51,647 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644044120] [2022-03-15 15:24:51,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:51,647 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:24:51,647 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:51,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:24:51,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:24:51,648 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) [2022-03-15 15:24:51,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:51,847 INFO L93 Difference]: Finished difference Result 541 states and 1317 transitions. [2022-03-15 15:24:51,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:24:51,848 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 [2022-03-15 15:24:51,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:51,848 INFO L225 Difference]: With dead ends: 541 [2022-03-15 15:24:51,848 INFO L226 Difference]: Without dead ends: 430 [2022-03-15 15:24:51,848 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 [2022-03-15 15:24:51,849 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 54 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 544 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:24:51,849 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] [2022-03-15 15:24:51,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2022-03-15 15:24:51,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 426. [2022-03-15 15:24:51,852 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) [2022-03-15 15:24:51,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 1032 transitions. [2022-03-15 15:24:51,853 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 1032 transitions. Word has length 26 [2022-03-15 15:24:51,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:51,853 INFO L470 AbstractCegarLoop]: Abstraction has 426 states and 1032 transitions. [2022-03-15 15:24:51,853 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) [2022-03-15 15:24:51,853 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 1032 transitions. [2022-03-15 15:24:51,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:51,853 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:51,853 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:51,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable362 [2022-03-15 15:24:51,853 INFO L402 AbstractCegarLoop]: === Iteration 364 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:51,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:51,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1313556945, now seen corresponding path program 362 times [2022-03-15 15:24:51,854 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:51,854 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715005848] [2022-03-15 15:24:51,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:51,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:51,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:51,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:51,915 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:51,915 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715005848] [2022-03-15 15:24:51,915 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715005848] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:51,915 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:51,915 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:24:51,915 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189194906] [2022-03-15 15:24:51,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:51,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:24:51,915 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:51,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:24:51,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:24:51,915 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) [2022-03-15 15:24:52,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:52,115 INFO L93 Difference]: Finished difference Result 544 states and 1316 transitions. [2022-03-15 15:24:52,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:24:52,115 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 [2022-03-15 15:24:52,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:52,115 INFO L225 Difference]: With dead ends: 544 [2022-03-15 15:24:52,115 INFO L226 Difference]: Without dead ends: 444 [2022-03-15 15:24:52,115 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 [2022-03-15 15:24:52,116 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 48 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 541 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:24:52,116 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] [2022-03-15 15:24:52,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2022-03-15 15:24:52,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 431. [2022-03-15 15:24:52,119 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) [2022-03-15 15:24:52,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 1043 transitions. [2022-03-15 15:24:52,120 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 1043 transitions. Word has length 26 [2022-03-15 15:24:52,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:52,120 INFO L470 AbstractCegarLoop]: Abstraction has 431 states and 1043 transitions. [2022-03-15 15:24:52,120 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) [2022-03-15 15:24:52,120 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 1043 transitions. [2022-03-15 15:24:52,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:52,120 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:52,120 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:52,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable363 [2022-03-15 15:24:52,120 INFO L402 AbstractCegarLoop]: === Iteration 365 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:52,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:52,121 INFO L85 PathProgramCache]: Analyzing trace with hash -2060834385, now seen corresponding path program 363 times [2022-03-15 15:24:52,121 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:52,121 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869105292] [2022-03-15 15:24:52,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:52,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:52,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:52,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:52,191 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:52,192 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869105292] [2022-03-15 15:24:52,192 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869105292] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:52,192 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:52,192 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:24:52,192 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441485002] [2022-03-15 15:24:52,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:52,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:24:52,192 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:52,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:24:52,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:24:52,192 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) [2022-03-15 15:24:52,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:52,387 INFO L93 Difference]: Finished difference Result 539 states and 1307 transitions. [2022-03-15 15:24:52,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:24:52,387 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 [2022-03-15 15:24:52,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:52,388 INFO L225 Difference]: With dead ends: 539 [2022-03-15 15:24:52,388 INFO L226 Difference]: Without dead ends: 431 [2022-03-15 15:24:52,388 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 [2022-03-15 15:24:52,388 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 48 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:24:52,388 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] [2022-03-15 15:24:52,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2022-03-15 15:24:52,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 414. [2022-03-15 15:24:52,391 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) [2022-03-15 15:24:52,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 1010 transitions. [2022-03-15 15:24:52,392 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 1010 transitions. Word has length 26 [2022-03-15 15:24:52,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:52,392 INFO L470 AbstractCegarLoop]: Abstraction has 414 states and 1010 transitions. [2022-03-15 15:24:52,392 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) [2022-03-15 15:24:52,392 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 1010 transitions. [2022-03-15 15:24:52,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:52,392 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:52,393 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:52,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable364 [2022-03-15 15:24:52,393 INFO L402 AbstractCegarLoop]: === Iteration 366 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:52,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:52,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1506122419, now seen corresponding path program 364 times [2022-03-15 15:24:52,393 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:52,393 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513570951] [2022-03-15 15:24:52,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:52,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:52,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:52,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:52,461 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:52,461 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513570951] [2022-03-15 15:24:52,461 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513570951] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:52,461 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:52,461 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:52,461 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012505393] [2022-03-15 15:24:52,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:52,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:52,461 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:52,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:52,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:52,461 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) [2022-03-15 15:24:52,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:52,704 INFO L93 Difference]: Finished difference Result 552 states and 1354 transitions. [2022-03-15 15:24:52,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:52,704 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:52,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:52,704 INFO L225 Difference]: With dead ends: 552 [2022-03-15 15:24:52,704 INFO L226 Difference]: Without dead ends: 447 [2022-03-15 15:24:52,704 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:52,705 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 [2022-03-15 15:24:52,705 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] [2022-03-15 15:24:52,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2022-03-15 15:24:52,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 426. [2022-03-15 15:24:52,708 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) [2022-03-15 15:24:52,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 1049 transitions. [2022-03-15 15:24:52,709 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 1049 transitions. Word has length 26 [2022-03-15 15:24:52,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:52,709 INFO L470 AbstractCegarLoop]: Abstraction has 426 states and 1049 transitions. [2022-03-15 15:24:52,709 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:52,709 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 1049 transitions. [2022-03-15 15:24:52,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:52,709 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:52,709 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:52,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable365 [2022-03-15 15:24:52,709 INFO L402 AbstractCegarLoop]: === Iteration 367 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:52,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:52,710 INFO L85 PathProgramCache]: Analyzing trace with hash -359828879, now seen corresponding path program 365 times [2022-03-15 15:24:52,710 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:52,710 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358701024] [2022-03-15 15:24:52,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:52,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:52,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:52,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:52,789 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:52,789 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358701024] [2022-03-15 15:24:52,789 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358701024] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:52,789 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:52,789 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:52,789 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283382743] [2022-03-15 15:24:52,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:52,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:52,790 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:52,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:52,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:52,790 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) [2022-03-15 15:24:53,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:53,036 INFO L93 Difference]: Finished difference Result 587 states and 1441 transitions. [2022-03-15 15:24:53,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:53,037 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:53,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:53,037 INFO L225 Difference]: With dead ends: 587 [2022-03-15 15:24:53,037 INFO L226 Difference]: Without dead ends: 454 [2022-03-15 15:24:53,037 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:53,038 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 [2022-03-15 15:24:53,038 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] [2022-03-15 15:24:53,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2022-03-15 15:24:53,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 438. [2022-03-15 15:24:53,041 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) [2022-03-15 15:24:53,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 1076 transitions. [2022-03-15 15:24:53,042 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 1076 transitions. Word has length 26 [2022-03-15 15:24:53,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:53,042 INFO L470 AbstractCegarLoop]: Abstraction has 438 states and 1076 transitions. [2022-03-15 15:24:53,042 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) [2022-03-15 15:24:53,042 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 1076 transitions. [2022-03-15 15:24:53,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:53,042 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:53,042 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:53,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable366 [2022-03-15 15:24:53,043 INFO L402 AbstractCegarLoop]: === Iteration 368 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:53,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:53,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1388864917, now seen corresponding path program 366 times [2022-03-15 15:24:53,043 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:53,043 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906907488] [2022-03-15 15:24:53,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:53,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:53,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:53,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:53,112 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:53,112 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906907488] [2022-03-15 15:24:53,112 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906907488] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:53,112 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:53,112 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:53,112 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348072736] [2022-03-15 15:24:53,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:53,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:53,112 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:53,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:53,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:53,113 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) [2022-03-15 15:24:53,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:53,353 INFO L93 Difference]: Finished difference Result 557 states and 1384 transitions. [2022-03-15 15:24:53,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:53,354 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:53,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:53,354 INFO L225 Difference]: With dead ends: 557 [2022-03-15 15:24:53,354 INFO L226 Difference]: Without dead ends: 460 [2022-03-15 15:24:53,354 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:53,354 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 [2022-03-15 15:24:53,354 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] [2022-03-15 15:24:53,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2022-03-15 15:24:53,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 443. [2022-03-15 15:24:53,358 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) [2022-03-15 15:24:53,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 1091 transitions. [2022-03-15 15:24:53,359 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 1091 transitions. Word has length 26 [2022-03-15 15:24:53,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:53,359 INFO L470 AbstractCegarLoop]: Abstraction has 443 states and 1091 transitions. [2022-03-15 15:24:53,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:53,359 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 1091 transitions. [2022-03-15 15:24:53,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:53,359 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:53,359 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:53,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable367 [2022-03-15 15:24:53,359 INFO L402 AbstractCegarLoop]: === Iteration 369 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:53,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:53,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1337173837, now seen corresponding path program 367 times [2022-03-15 15:24:53,360 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:53,360 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320844197] [2022-03-15 15:24:53,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:53,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:53,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:53,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:53,428 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:53,428 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320844197] [2022-03-15 15:24:53,428 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320844197] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:53,428 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:53,428 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:53,428 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358050543] [2022-03-15 15:24:53,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:53,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:53,428 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:53,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:53,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:53,429 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) [2022-03-15 15:24:53,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:53,667 INFO L93 Difference]: Finished difference Result 553 states and 1364 transitions. [2022-03-15 15:24:53,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:53,667 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:53,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:53,668 INFO L225 Difference]: With dead ends: 553 [2022-03-15 15:24:53,668 INFO L226 Difference]: Without dead ends: 448 [2022-03-15 15:24:53,668 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:53,668 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 [2022-03-15 15:24:53,668 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] [2022-03-15 15:24:53,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2022-03-15 15:24:53,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 426. [2022-03-15 15:24:53,672 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) [2022-03-15 15:24:53,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 1039 transitions. [2022-03-15 15:24:53,672 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 1039 transitions. Word has length 26 [2022-03-15 15:24:53,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:53,673 INFO L470 AbstractCegarLoop]: Abstraction has 426 states and 1039 transitions. [2022-03-15 15:24:53,673 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) [2022-03-15 15:24:53,673 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 1039 transitions. [2022-03-15 15:24:53,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:53,673 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:53,673 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] [2022-03-15 15:24:53,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable368 [2022-03-15 15:24:53,673 INFO L402 AbstractCegarLoop]: === Iteration 370 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:53,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:53,673 INFO L85 PathProgramCache]: Analyzing trace with hash -879139765, now seen corresponding path program 368 times [2022-03-15 15:24:53,674 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:53,674 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381277919] [2022-03-15 15:24:53,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:53,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:53,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:53,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:53,758 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:53,758 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381277919] [2022-03-15 15:24:53,758 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381277919] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:53,758 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:53,759 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:53,759 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346369875] [2022-03-15 15:24:53,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:53,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:53,759 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:53,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:53,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:53,759 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) [2022-03-15 15:24:53,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:53,995 INFO L93 Difference]: Finished difference Result 558 states and 1354 transitions. [2022-03-15 15:24:53,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:53,995 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:53,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:53,996 INFO L225 Difference]: With dead ends: 558 [2022-03-15 15:24:53,996 INFO L226 Difference]: Without dead ends: 451 [2022-03-15 15:24:53,996 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 [2022-03-15 15:24:53,996 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 [2022-03-15 15:24:53,996 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] [2022-03-15 15:24:53,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2022-03-15 15:24:54,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 436. [2022-03-15 15:24:54,000 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) [2022-03-15 15:24:54,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 1061 transitions. [2022-03-15 15:24:54,001 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 1061 transitions. Word has length 26 [2022-03-15 15:24:54,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:54,001 INFO L470 AbstractCegarLoop]: Abstraction has 436 states and 1061 transitions. [2022-03-15 15:24:54,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:54,001 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 1061 transitions. [2022-03-15 15:24:54,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:54,001 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:54,001 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:54,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable369 [2022-03-15 15:24:54,001 INFO L402 AbstractCegarLoop]: === Iteration 371 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:54,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:54,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1846898989, now seen corresponding path program 369 times [2022-03-15 15:24:54,002 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:54,002 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777275496] [2022-03-15 15:24:54,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:54,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:54,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:54,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:54,074 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:54,074 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777275496] [2022-03-15 15:24:54,074 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777275496] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:54,074 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:54,074 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:54,074 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288084561] [2022-03-15 15:24:54,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:54,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:54,075 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:54,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:54,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:54,075 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) [2022-03-15 15:24:54,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:54,308 INFO L93 Difference]: Finished difference Result 542 states and 1322 transitions. [2022-03-15 15:24:54,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:54,308 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:54,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:54,309 INFO L225 Difference]: With dead ends: 542 [2022-03-15 15:24:54,309 INFO L226 Difference]: Without dead ends: 443 [2022-03-15 15:24:54,309 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:54,309 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 [2022-03-15 15:24:54,309 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] [2022-03-15 15:24:54,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2022-03-15 15:24:54,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 438. [2022-03-15 15:24:54,314 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) [2022-03-15 15:24:54,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 1066 transitions. [2022-03-15 15:24:54,315 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 1066 transitions. Word has length 26 [2022-03-15 15:24:54,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:54,315 INFO L470 AbstractCegarLoop]: Abstraction has 438 states and 1066 transitions. [2022-03-15 15:24:54,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:54,315 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 1066 transitions. [2022-03-15 15:24:54,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:54,316 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:54,316 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] [2022-03-15 15:24:54,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable370 [2022-03-15 15:24:54,316 INFO L402 AbstractCegarLoop]: === Iteration 372 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:54,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:54,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1085947731, now seen corresponding path program 370 times [2022-03-15 15:24:54,317 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:54,317 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269347759] [2022-03-15 15:24:54,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:54,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:54,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:54,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:54,393 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:54,393 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269347759] [2022-03-15 15:24:54,393 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269347759] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:54,393 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:54,393 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:54,393 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631356474] [2022-03-15 15:24:54,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:54,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:54,393 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:54,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:54,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:54,394 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) [2022-03-15 15:24:54,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:54,629 INFO L93 Difference]: Finished difference Result 571 states and 1384 transitions. [2022-03-15 15:24:54,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:54,629 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:54,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:54,630 INFO L225 Difference]: With dead ends: 571 [2022-03-15 15:24:54,630 INFO L226 Difference]: Without dead ends: 461 [2022-03-15 15:24:54,630 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 [2022-03-15 15:24:54,630 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 [2022-03-15 15:24:54,630 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] [2022-03-15 15:24:54,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2022-03-15 15:24:54,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 445. [2022-03-15 15:24:54,634 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) [2022-03-15 15:24:54,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 1082 transitions. [2022-03-15 15:24:54,635 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 1082 transitions. Word has length 26 [2022-03-15 15:24:54,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:54,635 INFO L470 AbstractCegarLoop]: Abstraction has 445 states and 1082 transitions. [2022-03-15 15:24:54,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:54,635 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 1082 transitions. [2022-03-15 15:24:54,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:54,636 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:54,636 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] [2022-03-15 15:24:54,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable371 [2022-03-15 15:24:54,636 INFO L402 AbstractCegarLoop]: === Iteration 373 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:54,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:54,636 INFO L85 PathProgramCache]: Analyzing trace with hash 615555117, now seen corresponding path program 371 times [2022-03-15 15:24:54,636 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:54,637 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13925441] [2022-03-15 15:24:54,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:54,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:54,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:54,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:54,708 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:54,708 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13925441] [2022-03-15 15:24:54,708 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13925441] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:54,708 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:54,708 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:54,708 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872644097] [2022-03-15 15:24:54,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:54,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:54,708 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:54,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:54,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:54,709 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) [2022-03-15 15:24:54,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:54,945 INFO L93 Difference]: Finished difference Result 570 states and 1380 transitions. [2022-03-15 15:24:54,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:54,946 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:54,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:54,946 INFO L225 Difference]: With dead ends: 570 [2022-03-15 15:24:54,947 INFO L226 Difference]: Without dead ends: 468 [2022-03-15 15:24:54,947 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:54,947 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 [2022-03-15 15:24:54,947 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] [2022-03-15 15:24:54,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2022-03-15 15:24:54,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 452. [2022-03-15 15:24:54,950 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) [2022-03-15 15:24:54,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 1097 transitions. [2022-03-15 15:24:54,951 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 1097 transitions. Word has length 26 [2022-03-15 15:24:54,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:54,951 INFO L470 AbstractCegarLoop]: Abstraction has 452 states and 1097 transitions. [2022-03-15 15:24:54,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:54,951 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 1097 transitions. [2022-03-15 15:24:54,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:54,952 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:54,952 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:54,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable372 [2022-03-15 15:24:54,952 INFO L402 AbstractCegarLoop]: === Iteration 374 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:54,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:54,952 INFO L85 PathProgramCache]: Analyzing trace with hash -935650161, now seen corresponding path program 372 times [2022-03-15 15:24:54,952 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:54,952 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40300459] [2022-03-15 15:24:54,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:54,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:54,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:55,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:55,022 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:55,022 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40300459] [2022-03-15 15:24:55,022 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40300459] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:55,022 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:55,022 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:55,022 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231128566] [2022-03-15 15:24:55,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:55,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:55,023 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:55,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:55,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:55,023 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) [2022-03-15 15:24:55,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:55,258 INFO L93 Difference]: Finished difference Result 564 states and 1379 transitions. [2022-03-15 15:24:55,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:55,258 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:55,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:55,259 INFO L225 Difference]: With dead ends: 564 [2022-03-15 15:24:55,259 INFO L226 Difference]: Without dead ends: 467 [2022-03-15 15:24:55,259 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:55,259 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 [2022-03-15 15:24:55,259 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] [2022-03-15 15:24:55,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2022-03-15 15:24:55,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 457. [2022-03-15 15:24:55,263 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) [2022-03-15 15:24:55,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 1112 transitions. [2022-03-15 15:24:55,263 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 1112 transitions. Word has length 26 [2022-03-15 15:24:55,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:55,263 INFO L470 AbstractCegarLoop]: Abstraction has 457 states and 1112 transitions. [2022-03-15 15:24:55,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:55,264 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 1112 transitions. [2022-03-15 15:24:55,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:55,264 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:55,264 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:55,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable373 [2022-03-15 15:24:55,264 INFO L402 AbstractCegarLoop]: === Iteration 375 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:55,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:55,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1967172589, now seen corresponding path program 373 times [2022-03-15 15:24:55,264 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:55,264 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532300009] [2022-03-15 15:24:55,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:55,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:55,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:55,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:55,334 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:55,334 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532300009] [2022-03-15 15:24:55,334 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532300009] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:55,334 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:55,334 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:55,334 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515924970] [2022-03-15 15:24:55,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:55,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:55,334 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:55,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:55,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:55,334 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) [2022-03-15 15:24:55,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:55,563 INFO L93 Difference]: Finished difference Result 564 states and 1377 transitions. [2022-03-15 15:24:55,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:55,563 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:55,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:55,564 INFO L225 Difference]: With dead ends: 564 [2022-03-15 15:24:55,564 INFO L226 Difference]: Without dead ends: 460 [2022-03-15 15:24:55,564 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 [2022-03-15 15:24:55,564 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 [2022-03-15 15:24:55,564 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] [2022-03-15 15:24:55,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2022-03-15 15:24:55,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 445. [2022-03-15 15:24:55,568 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) [2022-03-15 15:24:55,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 1081 transitions. [2022-03-15 15:24:55,568 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 1081 transitions. Word has length 26 [2022-03-15 15:24:55,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:55,568 INFO L470 AbstractCegarLoop]: Abstraction has 445 states and 1081 transitions. [2022-03-15 15:24:55,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:55,568 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 1081 transitions. [2022-03-15 15:24:55,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:55,569 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:55,569 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:55,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable374 [2022-03-15 15:24:55,569 INFO L402 AbstractCegarLoop]: === Iteration 376 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:55,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:55,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1288349539, now seen corresponding path program 374 times [2022-03-15 15:24:55,570 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:55,570 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584899512] [2022-03-15 15:24:55,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:55,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:55,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:55,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:55,638 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:55,638 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584899512] [2022-03-15 15:24:55,638 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584899512] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:55,638 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:55,638 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:55,638 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151552889] [2022-03-15 15:24:55,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:55,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:55,638 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:55,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:55,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:55,638 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) [2022-03-15 15:24:55,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:55,883 INFO L93 Difference]: Finished difference Result 598 states and 1453 transitions. [2022-03-15 15:24:55,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:55,883 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:55,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:55,884 INFO L225 Difference]: With dead ends: 598 [2022-03-15 15:24:55,884 INFO L226 Difference]: Without dead ends: 471 [2022-03-15 15:24:55,884 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 [2022-03-15 15:24:55,884 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 [2022-03-15 15:24:55,884 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] [2022-03-15 15:24:55,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2022-03-15 15:24:55,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 445. [2022-03-15 15:24:55,888 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) [2022-03-15 15:24:55,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 1077 transitions. [2022-03-15 15:24:55,888 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 1077 transitions. Word has length 26 [2022-03-15 15:24:55,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:55,888 INFO L470 AbstractCegarLoop]: Abstraction has 445 states and 1077 transitions. [2022-03-15 15:24:55,888 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) [2022-03-15 15:24:55,888 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 1077 transitions. [2022-03-15 15:24:55,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:55,889 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:55,889 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] [2022-03-15 15:24:55,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable375 [2022-03-15 15:24:55,889 INFO L402 AbstractCegarLoop]: === Iteration 377 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:55,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:55,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1405607041, now seen corresponding path program 375 times [2022-03-15 15:24:55,889 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:55,889 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880240064] [2022-03-15 15:24:55,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:55,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:55,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:55,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:55,961 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:55,961 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880240064] [2022-03-15 15:24:55,961 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880240064] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:55,961 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:55,961 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:55,961 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320624137] [2022-03-15 15:24:55,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:55,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:55,962 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:55,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:55,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:55,962 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) [2022-03-15 15:24:56,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:56,212 INFO L93 Difference]: Finished difference Result 583 states and 1427 transitions. [2022-03-15 15:24:56,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:56,212 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 [2022-03-15 15:24:56,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:56,213 INFO L225 Difference]: With dead ends: 583 [2022-03-15 15:24:56,213 INFO L226 Difference]: Without dead ends: 464 [2022-03-15 15:24:56,213 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 [2022-03-15 15:24:56,213 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 [2022-03-15 15:24:56,213 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] [2022-03-15 15:24:56,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2022-03-15 15:24:56,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 450. [2022-03-15 15:24:56,217 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) [2022-03-15 15:24:56,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 1092 transitions. [2022-03-15 15:24:56,217 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 1092 transitions. Word has length 26 [2022-03-15 15:24:56,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:56,217 INFO L470 AbstractCegarLoop]: Abstraction has 450 states and 1092 transitions. [2022-03-15 15:24:56,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:56,217 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 1092 transitions. [2022-03-15 15:24:56,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:56,218 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:56,218 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:56,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable376 [2022-03-15 15:24:56,218 INFO L402 AbstractCegarLoop]: === Iteration 378 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:56,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:56,218 INFO L85 PathProgramCache]: Analyzing trace with hash -163321501, now seen corresponding path program 376 times [2022-03-15 15:24:56,218 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:56,218 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116555403] [2022-03-15 15:24:56,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:56,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:56,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:56,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:56,285 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:56,285 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116555403] [2022-03-15 15:24:56,285 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116555403] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:56,285 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:56,285 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:56,286 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664788127] [2022-03-15 15:24:56,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:56,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:56,286 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:56,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:56,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:56,286 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) [2022-03-15 15:24:56,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:56,522 INFO L93 Difference]: Finished difference Result 599 states and 1449 transitions. [2022-03-15 15:24:56,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:56,522 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:56,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:56,522 INFO L225 Difference]: With dead ends: 599 [2022-03-15 15:24:56,523 INFO L226 Difference]: Without dead ends: 472 [2022-03-15 15:24:56,523 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:56,523 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 [2022-03-15 15:24:56,523 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] [2022-03-15 15:24:56,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2022-03-15 15:24:56,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 450. [2022-03-15 15:24:56,526 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) [2022-03-15 15:24:56,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 1072 transitions. [2022-03-15 15:24:56,527 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 1072 transitions. Word has length 26 [2022-03-15 15:24:56,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:56,527 INFO L470 AbstractCegarLoop]: Abstraction has 450 states and 1072 transitions. [2022-03-15 15:24:56,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:56,527 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 1072 transitions. [2022-03-15 15:24:56,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:56,528 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:56,528 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:56,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable377 [2022-03-15 15:24:56,528 INFO L402 AbstractCegarLoop]: === Iteration 379 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:56,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:56,528 INFO L85 PathProgramCache]: Analyzing trace with hash 29359919, now seen corresponding path program 377 times [2022-03-15 15:24:56,528 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:56,528 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169280931] [2022-03-15 15:24:56,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:56,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:56,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:56,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:56,616 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:56,616 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169280931] [2022-03-15 15:24:56,616 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169280931] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:56,616 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:56,616 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:56,616 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722316079] [2022-03-15 15:24:56,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:56,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:56,617 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:56,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:56,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:56,617 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) [2022-03-15 15:24:56,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:56,847 INFO L93 Difference]: Finished difference Result 553 states and 1321 transitions. [2022-03-15 15:24:56,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:56,847 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 [2022-03-15 15:24:56,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:56,848 INFO L225 Difference]: With dead ends: 553 [2022-03-15 15:24:56,848 INFO L226 Difference]: Without dead ends: 420 [2022-03-15 15:24:56,848 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 [2022-03-15 15:24:56,848 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 [2022-03-15 15:24:56,848 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] [2022-03-15 15:24:56,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2022-03-15 15:24:56,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 403. [2022-03-15 15:24:56,851 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) [2022-03-15 15:24:56,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 960 transitions. [2022-03-15 15:24:56,852 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 960 transitions. Word has length 26 [2022-03-15 15:24:56,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:56,852 INFO L470 AbstractCegarLoop]: Abstraction has 403 states and 960 transitions. [2022-03-15 15:24:56,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:56,852 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 960 transitions. [2022-03-15 15:24:56,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:56,853 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:56,853 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:56,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable378 [2022-03-15 15:24:56,853 INFO L402 AbstractCegarLoop]: === Iteration 380 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:56,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:56,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1714387185, now seen corresponding path program 378 times [2022-03-15 15:24:56,853 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:56,853 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975187811] [2022-03-15 15:24:56,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:56,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:56,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:56,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:56,935 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:56,935 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975187811] [2022-03-15 15:24:56,935 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975187811] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:56,935 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:56,936 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:24:56,936 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854002994] [2022-03-15 15:24:56,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:56,936 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:24:56,936 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:56,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:24:56,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:24:56,936 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) [2022-03-15 15:24:57,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:57,142 INFO L93 Difference]: Finished difference Result 542 states and 1283 transitions. [2022-03-15 15:24:57,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:24:57,142 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 [2022-03-15 15:24:57,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:57,143 INFO L225 Difference]: With dead ends: 542 [2022-03-15 15:24:57,143 INFO L226 Difference]: Without dead ends: 426 [2022-03-15 15:24:57,143 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 [2022-03-15 15:24:57,143 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 47 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:24:57,143 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] [2022-03-15 15:24:57,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2022-03-15 15:24:57,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 413. [2022-03-15 15:24:57,147 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) [2022-03-15 15:24:57,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 974 transitions. [2022-03-15 15:24:57,147 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 974 transitions. Word has length 26 [2022-03-15 15:24:57,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:57,147 INFO L470 AbstractCegarLoop]: Abstraction has 413 states and 974 transitions. [2022-03-15 15:24:57,147 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) [2022-03-15 15:24:57,148 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 974 transitions. [2022-03-15 15:24:57,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:57,148 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:57,148 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] [2022-03-15 15:24:57,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable379 [2022-03-15 15:24:57,148 INFO L402 AbstractCegarLoop]: === Iteration 381 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:57,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:57,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1011651569, now seen corresponding path program 379 times [2022-03-15 15:24:57,148 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:57,149 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237746558] [2022-03-15 15:24:57,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:57,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:57,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:57,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:57,219 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:57,219 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237746558] [2022-03-15 15:24:57,219 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237746558] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:57,219 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:57,219 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:57,219 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273468679] [2022-03-15 15:24:57,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:57,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:57,220 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:57,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:57,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:57,220 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) [2022-03-15 15:24:57,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:57,453 INFO L93 Difference]: Finished difference Result 537 states and 1263 transitions. [2022-03-15 15:24:57,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:57,453 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:57,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:57,454 INFO L225 Difference]: With dead ends: 537 [2022-03-15 15:24:57,454 INFO L226 Difference]: Without dead ends: 418 [2022-03-15 15:24:57,454 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 [2022-03-15 15:24:57,454 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 [2022-03-15 15:24:57,454 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] [2022-03-15 15:24:57,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2022-03-15 15:24:57,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 403. [2022-03-15 15:24:57,458 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) [2022-03-15 15:24:57,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 952 transitions. [2022-03-15 15:24:57,458 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 952 transitions. Word has length 26 [2022-03-15 15:24:57,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:57,458 INFO L470 AbstractCegarLoop]: Abstraction has 403 states and 952 transitions. [2022-03-15 15:24:57,458 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:57,458 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 952 transitions. [2022-03-15 15:24:57,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:57,459 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:57,459 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:57,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable380 [2022-03-15 15:24:57,459 INFO L402 AbstractCegarLoop]: === Iteration 382 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:57,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:57,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1099141805, now seen corresponding path program 380 times [2022-03-15 15:24:57,459 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:57,459 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241471220] [2022-03-15 15:24:57,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:57,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:57,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:57,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:57,530 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:57,530 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241471220] [2022-03-15 15:24:57,530 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241471220] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:57,530 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:57,530 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:57,530 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704612415] [2022-03-15 15:24:57,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:57,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:57,530 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:57,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:57,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:57,530 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) [2022-03-15 15:24:57,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:57,766 INFO L93 Difference]: Finished difference Result 526 states and 1249 transitions. [2022-03-15 15:24:57,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:57,766 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 [2022-03-15 15:24:57,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:57,767 INFO L225 Difference]: With dead ends: 526 [2022-03-15 15:24:57,767 INFO L226 Difference]: Without dead ends: 416 [2022-03-15 15:24:57,767 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 [2022-03-15 15:24:57,767 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 [2022-03-15 15:24:57,767 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] [2022-03-15 15:24:57,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2022-03-15 15:24:57,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 401. [2022-03-15 15:24:57,771 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) [2022-03-15 15:24:57,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 946 transitions. [2022-03-15 15:24:57,771 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 946 transitions. Word has length 26 [2022-03-15 15:24:57,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:57,771 INFO L470 AbstractCegarLoop]: Abstraction has 401 states and 946 transitions. [2022-03-15 15:24:57,771 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:57,771 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 946 transitions. [2022-03-15 15:24:57,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:57,772 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:57,772 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:57,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable381 [2022-03-15 15:24:57,772 INFO L402 AbstractCegarLoop]: === Iteration 383 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:57,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:57,772 INFO L85 PathProgramCache]: Analyzing trace with hash -469786737, now seen corresponding path program 381 times [2022-03-15 15:24:57,772 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:57,772 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760435805] [2022-03-15 15:24:57,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:57,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:57,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:57,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:57,842 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:57,843 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760435805] [2022-03-15 15:24:57,843 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760435805] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:57,843 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:57,843 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:57,843 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479128951] [2022-03-15 15:24:57,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:57,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:57,843 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:57,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:57,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:57,843 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) [2022-03-15 15:24:58,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:58,079 INFO L93 Difference]: Finished difference Result 506 states and 1204 transitions. [2022-03-15 15:24:58,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:58,080 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:58,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:58,080 INFO L225 Difference]: With dead ends: 506 [2022-03-15 15:24:58,080 INFO L226 Difference]: Without dead ends: 407 [2022-03-15 15:24:58,080 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 [2022-03-15 15:24:58,080 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 [2022-03-15 15:24:58,080 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] [2022-03-15 15:24:58,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2022-03-15 15:24:58,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 401. [2022-03-15 15:24:58,085 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) [2022-03-15 15:24:58,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 945 transitions. [2022-03-15 15:24:58,086 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 945 transitions. Word has length 26 [2022-03-15 15:24:58,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:58,086 INFO L470 AbstractCegarLoop]: Abstraction has 401 states and 945 transitions. [2022-03-15 15:24:58,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:58,086 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 945 transitions. [2022-03-15 15:24:58,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:58,086 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:58,087 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] [2022-03-15 15:24:58,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable382 [2022-03-15 15:24:58,087 INFO L402 AbstractCegarLoop]: === Iteration 384 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:58,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:58,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1042631409, now seen corresponding path program 382 times [2022-03-15 15:24:58,095 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:58,095 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136758430] [2022-03-15 15:24:58,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:58,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:58,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:58,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:58,179 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:58,179 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136758430] [2022-03-15 15:24:58,179 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136758430] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:58,180 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:58,180 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:58,180 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977085840] [2022-03-15 15:24:58,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:58,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:58,180 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:58,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:58,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:58,180 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) [2022-03-15 15:24:58,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:58,454 INFO L93 Difference]: Finished difference Result 513 states and 1227 transitions. [2022-03-15 15:24:58,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:58,455 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:58,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:58,455 INFO L225 Difference]: With dead ends: 513 [2022-03-15 15:24:58,456 INFO L226 Difference]: Without dead ends: 416 [2022-03-15 15:24:58,456 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 [2022-03-15 15:24:58,456 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 15:24:58,456 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 236 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 666 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 15:24:58,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2022-03-15 15:24:58,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 406. [2022-03-15 15:24:58,463 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) [2022-03-15 15:24:58,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 960 transitions. [2022-03-15 15:24:58,464 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 960 transitions. Word has length 26 [2022-03-15 15:24:58,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:58,464 INFO L470 AbstractCegarLoop]: Abstraction has 406 states and 960 transitions. [2022-03-15 15:24:58,464 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:58,464 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 960 transitions. [2022-03-15 15:24:58,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:58,464 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:58,465 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] [2022-03-15 15:24:58,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable383 [2022-03-15 15:24:58,465 INFO L402 AbstractCegarLoop]: === Iteration 385 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:58,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:58,465 INFO L85 PathProgramCache]: Analyzing trace with hash -349513137, now seen corresponding path program 383 times [2022-03-15 15:24:58,465 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:58,465 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968772009] [2022-03-15 15:24:58,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:58,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:58,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:58,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:58,535 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:58,535 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968772009] [2022-03-15 15:24:58,535 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968772009] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:58,535 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:58,536 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:58,536 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556367996] [2022-03-15 15:24:58,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:58,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:58,536 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:58,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:58,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:58,536 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) [2022-03-15 15:24:58,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:58,764 INFO L93 Difference]: Finished difference Result 532 states and 1254 transitions. [2022-03-15 15:24:58,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:58,764 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:58,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:58,765 INFO L225 Difference]: With dead ends: 532 [2022-03-15 15:24:58,765 INFO L226 Difference]: Without dead ends: 430 [2022-03-15 15:24:58,765 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:58,765 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 [2022-03-15 15:24:58,765 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] [2022-03-15 15:24:58,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2022-03-15 15:24:58,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 416. [2022-03-15 15:24:58,769 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) [2022-03-15 15:24:58,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 974 transitions. [2022-03-15 15:24:58,769 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 974 transitions. Word has length 26 [2022-03-15 15:24:58,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:58,769 INFO L470 AbstractCegarLoop]: Abstraction has 416 states and 974 transitions. [2022-03-15 15:24:58,769 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) [2022-03-15 15:24:58,769 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 974 transitions. [2022-03-15 15:24:58,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:58,770 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:58,770 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] [2022-03-15 15:24:58,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable384 [2022-03-15 15:24:58,770 INFO L402 AbstractCegarLoop]: === Iteration 386 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:58,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:58,770 INFO L85 PathProgramCache]: Analyzing trace with hash -18146681, now seen corresponding path program 384 times [2022-03-15 15:24:58,770 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:58,770 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407027411] [2022-03-15 15:24:58,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:58,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:58,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:58,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:58,841 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:58,841 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407027411] [2022-03-15 15:24:58,841 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407027411] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:58,841 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:58,841 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:58,841 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806526087] [2022-03-15 15:24:58,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:58,842 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:58,842 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:58,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:58,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:58,842 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) [2022-03-15 15:24:59,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:59,070 INFO L93 Difference]: Finished difference Result 513 states and 1207 transitions. [2022-03-15 15:24:59,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:59,070 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:59,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:59,070 INFO L225 Difference]: With dead ends: 513 [2022-03-15 15:24:59,071 INFO L226 Difference]: Without dead ends: 404 [2022-03-15 15:24:59,071 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:59,071 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 [2022-03-15 15:24:59,071 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] [2022-03-15 15:24:59,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2022-03-15 15:24:59,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 381. [2022-03-15 15:24:59,074 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) [2022-03-15 15:24:59,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 898 transitions. [2022-03-15 15:24:59,074 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 898 transitions. Word has length 26 [2022-03-15 15:24:59,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:59,074 INFO L470 AbstractCegarLoop]: Abstraction has 381 states and 898 transitions. [2022-03-15 15:24:59,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:24:59,074 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 898 transitions. [2022-03-15 15:24:59,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:59,075 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:59,075 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:59,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable385 [2022-03-15 15:24:59,075 INFO L402 AbstractCegarLoop]: === Iteration 387 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:59,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:59,075 INFO L85 PathProgramCache]: Analyzing trace with hash -320428265, now seen corresponding path program 385 times [2022-03-15 15:24:59,075 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:59,075 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336256888] [2022-03-15 15:24:59,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:59,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:59,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:59,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:59,143 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:59,143 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336256888] [2022-03-15 15:24:59,143 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336256888] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:59,143 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:59,143 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:59,143 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128105407] [2022-03-15 15:24:59,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:59,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:59,143 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:59,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:59,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:59,143 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) [2022-03-15 15:24:59,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:59,370 INFO L93 Difference]: Finished difference Result 499 states and 1177 transitions. [2022-03-15 15:24:59,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:59,371 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 [2022-03-15 15:24:59,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:59,371 INFO L225 Difference]: With dead ends: 499 [2022-03-15 15:24:59,371 INFO L226 Difference]: Without dead ends: 381 [2022-03-15 15:24:59,371 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 [2022-03-15 15:24:59,371 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 [2022-03-15 15:24:59,371 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] [2022-03-15 15:24:59,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2022-03-15 15:24:59,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 381. [2022-03-15 15:24:59,374 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) [2022-03-15 15:24:59,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 886 transitions. [2022-03-15 15:24:59,375 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 886 transitions. Word has length 26 [2022-03-15 15:24:59,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:59,375 INFO L470 AbstractCegarLoop]: Abstraction has 381 states and 886 transitions. [2022-03-15 15:24:59,375 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) [2022-03-15 15:24:59,375 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 886 transitions. [2022-03-15 15:24:59,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:59,375 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:59,375 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] [2022-03-15 15:24:59,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable386 [2022-03-15 15:24:59,376 INFO L402 AbstractCegarLoop]: === Iteration 388 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:59,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:59,376 INFO L85 PathProgramCache]: Analyzing trace with hash 178997849, now seen corresponding path program 386 times [2022-03-15 15:24:59,376 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:59,376 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408269672] [2022-03-15 15:24:59,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:59,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:59,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:59,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:59,444 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:59,444 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408269672] [2022-03-15 15:24:59,444 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408269672] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:59,445 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:59,445 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:59,445 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72928713] [2022-03-15 15:24:59,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:59,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:59,445 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:59,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:59,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:59,445 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) [2022-03-15 15:24:59,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:59,668 INFO L93 Difference]: Finished difference Result 491 states and 1149 transitions. [2022-03-15 15:24:59,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:59,669 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:59,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:59,669 INFO L225 Difference]: With dead ends: 491 [2022-03-15 15:24:59,669 INFO L226 Difference]: Without dead ends: 384 [2022-03-15 15:24:59,669 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:59,669 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 [2022-03-15 15:24:59,670 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] [2022-03-15 15:24:59,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2022-03-15 15:24:59,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 381. [2022-03-15 15:24:59,672 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) [2022-03-15 15:24:59,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 884 transitions. [2022-03-15 15:24:59,673 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 884 transitions. Word has length 26 [2022-03-15 15:24:59,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:59,673 INFO L470 AbstractCegarLoop]: Abstraction has 381 states and 884 transitions. [2022-03-15 15:24:59,673 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) [2022-03-15 15:24:59,673 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 884 transitions. [2022-03-15 15:24:59,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:59,673 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:59,674 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] [2022-03-15 15:24:59,674 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable387 [2022-03-15 15:24:59,674 INFO L402 AbstractCegarLoop]: === Iteration 389 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:59,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:59,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1099573815, now seen corresponding path program 387 times [2022-03-15 15:24:59,674 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:59,674 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312786594] [2022-03-15 15:24:59,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:59,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:59,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:24:59,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:24:59,743 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:24:59,743 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312786594] [2022-03-15 15:24:59,743 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312786594] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:24:59,743 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:24:59,743 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:24:59,743 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757315979] [2022-03-15 15:24:59,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:24:59,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:24:59,743 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:24:59,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:24:59,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:59,743 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) [2022-03-15 15:24:59,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:24:59,969 INFO L93 Difference]: Finished difference Result 484 states and 1132 transitions. [2022-03-15 15:24:59,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:24:59,969 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:24:59,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:24:59,969 INFO L225 Difference]: With dead ends: 484 [2022-03-15 15:24:59,969 INFO L226 Difference]: Without dead ends: 369 [2022-03-15 15:24:59,969 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:24:59,970 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 [2022-03-15 15:24:59,970 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] [2022-03-15 15:24:59,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2022-03-15 15:24:59,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 369. [2022-03-15 15:24:59,972 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) [2022-03-15 15:24:59,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 860 transitions. [2022-03-15 15:24:59,973 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 860 transitions. Word has length 26 [2022-03-15 15:24:59,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:24:59,973 INFO L470 AbstractCegarLoop]: Abstraction has 369 states and 860 transitions. [2022-03-15 15:24:59,973 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) [2022-03-15 15:24:59,973 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 860 transitions. [2022-03-15 15:24:59,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:24:59,974 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:24:59,974 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:24:59,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable388 [2022-03-15 15:24:59,974 INFO L402 AbstractCegarLoop]: === Iteration 390 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:24:59,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:24:59,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1654285781, now seen corresponding path program 388 times [2022-03-15 15:24:59,974 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:24:59,974 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746815256] [2022-03-15 15:24:59,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:24:59,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:24:59,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:25:00,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:25:00,046 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:25:00,046 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746815256] [2022-03-15 15:25:00,046 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746815256] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:25:00,046 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:25:00,046 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:25:00,046 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744783834] [2022-03-15 15:25:00,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:25:00,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:25:00,046 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:25:00,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:25:00,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:25:00,046 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) [2022-03-15 15:25:00,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:25:00,275 INFO L93 Difference]: Finished difference Result 497 states and 1163 transitions. [2022-03-15 15:25:00,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:25:00,276 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:25:00,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:25:00,276 INFO L225 Difference]: With dead ends: 497 [2022-03-15 15:25:00,276 INFO L226 Difference]: Without dead ends: 349 [2022-03-15 15:25:00,276 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 [2022-03-15 15:25:00,276 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 [2022-03-15 15:25:00,276 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] [2022-03-15 15:25:00,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2022-03-15 15:25:00,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 345. [2022-03-15 15:25:00,279 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) [2022-03-15 15:25:00,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 798 transitions. [2022-03-15 15:25:00,280 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 798 transitions. Word has length 26 [2022-03-15 15:25:00,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:25:00,280 INFO L470 AbstractCegarLoop]: Abstraction has 345 states and 798 transitions. [2022-03-15 15:25:00,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:25:00,280 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 798 transitions. [2022-03-15 15:25:00,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:25:00,280 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:25:00,280 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] [2022-03-15 15:25:00,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable389 [2022-03-15 15:25:00,280 INFO L402 AbstractCegarLoop]: === Iteration 391 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:25:00,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:25:00,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1494387975, now seen corresponding path program 389 times [2022-03-15 15:25:00,280 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:25:00,280 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965883992] [2022-03-15 15:25:00,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:25:00,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:25:00,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:25:00,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:25:00,348 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:25:00,348 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965883992] [2022-03-15 15:25:00,348 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965883992] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:25:00,348 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:25:00,348 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:25:00,348 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896345888] [2022-03-15 15:25:00,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:25:00,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:25:00,348 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:25:00,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:25:00,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:25:00,349 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) [2022-03-15 15:25:00,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:25:00,575 INFO L93 Difference]: Finished difference Result 469 states and 1098 transitions. [2022-03-15 15:25:00,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:25:00,576 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:25:00,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:25:00,576 INFO L225 Difference]: With dead ends: 469 [2022-03-15 15:25:00,576 INFO L226 Difference]: Without dead ends: 357 [2022-03-15 15:25:00,576 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:25:00,576 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 [2022-03-15 15:25:00,576 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] [2022-03-15 15:25:00,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2022-03-15 15:25:00,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 357. [2022-03-15 15:25:00,579 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) [2022-03-15 15:25:00,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 822 transitions. [2022-03-15 15:25:00,579 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 822 transitions. Word has length 26 [2022-03-15 15:25:00,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:25:00,580 INFO L470 AbstractCegarLoop]: Abstraction has 357 states and 822 transitions. [2022-03-15 15:25:00,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:25:00,580 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 822 transitions. [2022-03-15 15:25:00,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:25:00,580 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:25:00,580 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] [2022-03-15 15:25:00,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable390 [2022-03-15 15:25:00,580 INFO L402 AbstractCegarLoop]: === Iteration 392 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:25:00,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:25:00,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1771543283, now seen corresponding path program 390 times [2022-03-15 15:25:00,580 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:25:00,580 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479824958] [2022-03-15 15:25:00,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:25:00,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:25:00,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:25:00,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:25:00,650 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:25:00,650 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479824958] [2022-03-15 15:25:00,650 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479824958] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:25:00,650 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:25:00,650 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:25:00,650 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668526273] [2022-03-15 15:25:00,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:25:00,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:25:00,650 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:25:00,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:25:00,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:25:00,651 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) [2022-03-15 15:25:00,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:25:00,879 INFO L93 Difference]: Finished difference Result 474 states and 1113 transitions. [2022-03-15 15:25:00,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:25:00,879 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:25:00,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:25:00,880 INFO L225 Difference]: With dead ends: 474 [2022-03-15 15:25:00,880 INFO L226 Difference]: Without dead ends: 376 [2022-03-15 15:25:00,880 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 [2022-03-15 15:25:00,880 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 [2022-03-15 15:25:00,880 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] [2022-03-15 15:25:00,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2022-03-15 15:25:00,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 362. [2022-03-15 15:25:00,883 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) [2022-03-15 15:25:00,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 837 transitions. [2022-03-15 15:25:00,883 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 837 transitions. Word has length 26 [2022-03-15 15:25:00,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:25:00,883 INFO L470 AbstractCegarLoop]: Abstraction has 362 states and 837 transitions. [2022-03-15 15:25:00,883 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:25:00,883 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 837 transitions. [2022-03-15 15:25:00,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:25:00,884 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:25:00,884 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] [2022-03-15 15:25:00,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable391 [2022-03-15 15:25:00,884 INFO L402 AbstractCegarLoop]: === Iteration 393 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:25:00,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:25:00,884 INFO L85 PathProgramCache]: Analyzing trace with hash 202614741, now seen corresponding path program 391 times [2022-03-15 15:25:00,884 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:25:00,884 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240983122] [2022-03-15 15:25:00,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:25:00,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:25:00,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:25:00,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:25:00,972 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:25:00,972 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240983122] [2022-03-15 15:25:00,973 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240983122] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:25:00,973 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:25:00,973 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:25:00,973 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724312250] [2022-03-15 15:25:00,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:25:00,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:25:00,973 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:25:00,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:25:00,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:25:00,973 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) [2022-03-15 15:25:01,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:25:01,202 INFO L93 Difference]: Finished difference Result 470 states and 1093 transitions. [2022-03-15 15:25:01,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:25:01,202 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:25:01,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:25:01,203 INFO L225 Difference]: With dead ends: 470 [2022-03-15 15:25:01,203 INFO L226 Difference]: Without dead ends: 364 [2022-03-15 15:25:01,203 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 [2022-03-15 15:25:01,203 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 [2022-03-15 15:25:01,203 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] [2022-03-15 15:25:01,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2022-03-15 15:25:01,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 345. [2022-03-15 15:25:01,207 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) [2022-03-15 15:25:01,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 793 transitions. [2022-03-15 15:25:01,207 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 793 transitions. Word has length 26 [2022-03-15 15:25:01,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:25:01,207 INFO L470 AbstractCegarLoop]: Abstraction has 345 states and 793 transitions. [2022-03-15 15:25:01,207 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:25:01,207 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 793 transitions. [2022-03-15 15:25:01,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:25:01,208 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:25:01,208 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:25:01,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable392 [2022-03-15 15:25:01,208 INFO L402 AbstractCegarLoop]: === Iteration 394 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:25:01,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:25:01,208 INFO L85 PathProgramCache]: Analyzing trace with hash -2013698861, now seen corresponding path program 392 times [2022-03-15 15:25:01,209 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:25:01,209 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005780349] [2022-03-15 15:25:01,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:25:01,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:25:01,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:25:01,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:25:01,290 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:25:01,290 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005780349] [2022-03-15 15:25:01,290 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005780349] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:25:01,290 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:25:01,290 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:25:01,290 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808539283] [2022-03-15 15:25:01,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:25:01,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:25:01,290 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:25:01,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:25:01,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:25:01,290 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) [2022-03-15 15:25:01,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:25:01,507 INFO L93 Difference]: Finished difference Result 452 states and 1049 transitions. [2022-03-15 15:25:01,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:25:01,508 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 [2022-03-15 15:25:01,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:25:01,508 INFO L225 Difference]: With dead ends: 452 [2022-03-15 15:25:01,508 INFO L226 Difference]: Without dead ends: 346 [2022-03-15 15:25:01,508 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 [2022-03-15 15:25:01,511 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 [2022-03-15 15:25:01,511 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] [2022-03-15 15:25:01,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2022-03-15 15:25:01,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 341. [2022-03-15 15:25:01,514 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) [2022-03-15 15:25:01,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 784 transitions. [2022-03-15 15:25:01,514 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 784 transitions. Word has length 26 [2022-03-15 15:25:01,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:25:01,514 INFO L470 AbstractCegarLoop]: Abstraction has 341 states and 784 transitions. [2022-03-15 15:25:01,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:25:01,514 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 784 transitions. [2022-03-15 15:25:01,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:25:01,515 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:25:01,515 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:25:01,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable393 [2022-03-15 15:25:01,515 INFO L402 AbstractCegarLoop]: === Iteration 395 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:25:01,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:25:01,515 INFO L85 PathProgramCache]: Analyzing trace with hash 712339893, now seen corresponding path program 393 times [2022-03-15 15:25:01,515 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:25:01,515 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885822047] [2022-03-15 15:25:01,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:25:01,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:25:01,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:25:01,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:25:01,601 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:25:01,601 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885822047] [2022-03-15 15:25:01,601 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885822047] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:25:01,601 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:25:01,601 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:25:01,601 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343810284] [2022-03-15 15:25:01,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:25:01,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:25:01,602 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:25:01,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:25:01,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:25:01,602 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) [2022-03-15 15:25:01,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:25:01,817 INFO L93 Difference]: Finished difference Result 448 states and 1039 transitions. [2022-03-15 15:25:01,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:25:01,818 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 [2022-03-15 15:25:01,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:25:01,818 INFO L225 Difference]: With dead ends: 448 [2022-03-15 15:25:01,818 INFO L226 Difference]: Without dead ends: 348 [2022-03-15 15:25:01,818 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:25:01,818 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 44 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:25:01,818 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] [2022-03-15 15:25:01,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2022-03-15 15:25:01,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 344. [2022-03-15 15:25:01,821 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) [2022-03-15 15:25:01,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 788 transitions. [2022-03-15 15:25:01,822 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 788 transitions. Word has length 26 [2022-03-15 15:25:01,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:25:01,822 INFO L470 AbstractCegarLoop]: Abstraction has 344 states and 788 transitions. [2022-03-15 15:25:01,822 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) [2022-03-15 15:25:01,822 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 788 transitions. [2022-03-15 15:25:01,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:25:01,822 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:25:01,822 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:25:01,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable394 [2022-03-15 15:25:01,822 INFO L402 AbstractCegarLoop]: === Iteration 396 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:25:01,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:25:01,822 INFO L85 PathProgramCache]: Analyzing trace with hash 2074460469, now seen corresponding path program 394 times [2022-03-15 15:25:01,822 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:25:01,823 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848189196] [2022-03-15 15:25:01,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:25:01,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:25:01,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:25:01,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:25:01,892 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:25:01,892 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848189196] [2022-03-15 15:25:01,892 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848189196] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:25:01,892 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:25:01,892 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:25:01,892 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381804666] [2022-03-15 15:25:01,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:25:01,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:25:01,893 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:25:01,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:25:01,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:25:01,893 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) [2022-03-15 15:25:02,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:25:02,110 INFO L93 Difference]: Finished difference Result 453 states and 1051 transitions. [2022-03-15 15:25:02,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:25:02,111 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:25:02,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:25:02,111 INFO L225 Difference]: With dead ends: 453 [2022-03-15 15:25:02,111 INFO L226 Difference]: Without dead ends: 352 [2022-03-15 15:25:02,111 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 [2022-03-15 15:25:02,111 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 [2022-03-15 15:25:02,111 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] [2022-03-15 15:25:02,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2022-03-15 15:25:02,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 345. [2022-03-15 15:25:02,117 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) [2022-03-15 15:25:02,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 789 transitions. [2022-03-15 15:25:02,117 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 789 transitions. Word has length 26 [2022-03-15 15:25:02,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:25:02,117 INFO L470 AbstractCegarLoop]: Abstraction has 345 states and 789 transitions. [2022-03-15 15:25:02,117 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) [2022-03-15 15:25:02,117 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 789 transitions. [2022-03-15 15:25:02,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:25:02,117 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:25:02,118 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] [2022-03-15 15:25:02,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable395 [2022-03-15 15:25:02,118 INFO L402 AbstractCegarLoop]: === Iteration 397 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:25:02,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:25:02,118 INFO L85 PathProgramCache]: Analyzing trace with hash -519003979, now seen corresponding path program 395 times [2022-03-15 15:25:02,118 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:25:02,118 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336815387] [2022-03-15 15:25:02,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:25:02,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:25:02,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:25:02,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:25:02,187 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:25:02,187 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336815387] [2022-03-15 15:25:02,187 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336815387] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:25:02,187 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:25:02,187 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:25:02,187 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772831064] [2022-03-15 15:25:02,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:25:02,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:25:02,187 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:25:02,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:25:02,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:25:02,187 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) [2022-03-15 15:25:02,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:25:02,406 INFO L93 Difference]: Finished difference Result 452 states and 1045 transitions. [2022-03-15 15:25:02,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:25:02,407 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:25:02,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:25:02,407 INFO L225 Difference]: With dead ends: 452 [2022-03-15 15:25:02,407 INFO L226 Difference]: Without dead ends: 349 [2022-03-15 15:25:02,407 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 [2022-03-15 15:25:02,407 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 [2022-03-15 15:25:02,407 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] [2022-03-15 15:25:02,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2022-03-15 15:25:02,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 346. [2022-03-15 15:25:02,410 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) [2022-03-15 15:25:02,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 790 transitions. [2022-03-15 15:25:02,410 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 790 transitions. Word has length 26 [2022-03-15 15:25:02,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:25:02,411 INFO L470 AbstractCegarLoop]: Abstraction has 346 states and 790 transitions. [2022-03-15 15:25:02,411 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) [2022-03-15 15:25:02,411 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 790 transitions. [2022-03-15 15:25:02,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:25:02,411 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:25:02,411 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] [2022-03-15 15:25:02,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable396 [2022-03-15 15:25:02,411 INFO L402 AbstractCegarLoop]: === Iteration 398 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:25:02,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:25:02,411 INFO L85 PathProgramCache]: Analyzing trace with hash -2070209257, now seen corresponding path program 396 times [2022-03-15 15:25:02,411 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:25:02,411 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527602757] [2022-03-15 15:25:02,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:25:02,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:25:02,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:25:02,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:25:02,480 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:25:02,480 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527602757] [2022-03-15 15:25:02,480 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527602757] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:25:02,480 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:25:02,480 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:25:02,480 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730805032] [2022-03-15 15:25:02,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:25:02,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:25:02,481 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:25:02,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:25:02,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:25:02,481 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) [2022-03-15 15:25:02,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:25:02,703 INFO L93 Difference]: Finished difference Result 456 states and 1063 transitions. [2022-03-15 15:25:02,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:25:02,703 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:25:02,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:25:02,704 INFO L225 Difference]: With dead ends: 456 [2022-03-15 15:25:02,704 INFO L226 Difference]: Without dead ends: 358 [2022-03-15 15:25:02,704 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:25:02,704 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 [2022-03-15 15:25:02,704 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] [2022-03-15 15:25:02,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2022-03-15 15:25:02,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 351. [2022-03-15 15:25:02,707 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) [2022-03-15 15:25:02,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 805 transitions. [2022-03-15 15:25:02,707 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 805 transitions. Word has length 26 [2022-03-15 15:25:02,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:25:02,707 INFO L470 AbstractCegarLoop]: Abstraction has 351 states and 805 transitions. [2022-03-15 15:25:02,707 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:25:02,707 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 805 transitions. [2022-03-15 15:25:02,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:25:02,708 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:25:02,708 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:25:02,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable397 [2022-03-15 15:25:02,708 INFO L402 AbstractCegarLoop]: === Iteration 399 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:25:02,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:25:02,708 INFO L85 PathProgramCache]: Analyzing trace with hash 832613493, now seen corresponding path program 397 times [2022-03-15 15:25:02,708 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:25:02,708 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210709840] [2022-03-15 15:25:02,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:25:02,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:25:02,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:25:02,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:25:02,781 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:25:02,781 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210709840] [2022-03-15 15:25:02,781 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210709840] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:25:02,781 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:25:02,781 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:25:02,782 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886322241] [2022-03-15 15:25:02,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:25:02,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:25:02,782 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:25:02,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:25:02,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:25:02,782 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) [2022-03-15 15:25:02,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:25:02,998 INFO L93 Difference]: Finished difference Result 456 states and 1056 transitions. [2022-03-15 15:25:02,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:25:02,998 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 [2022-03-15 15:25:02,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:25:02,999 INFO L225 Difference]: With dead ends: 456 [2022-03-15 15:25:02,999 INFO L226 Difference]: Without dead ends: 351 [2022-03-15 15:25:02,999 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:25:02,999 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 46 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 613 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:25:02,999 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] [2022-03-15 15:25:03,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2022-03-15 15:25:03,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 339. [2022-03-15 15:25:03,002 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) [2022-03-15 15:25:03,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 777 transitions. [2022-03-15 15:25:03,002 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 777 transitions. Word has length 26 [2022-03-15 15:25:03,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:25:03,002 INFO L470 AbstractCegarLoop]: Abstraction has 339 states and 777 transitions. [2022-03-15 15:25:03,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:25:03,002 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 777 transitions. [2022-03-15 15:25:03,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:25:03,003 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:25:03,003 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:25:03,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable398 [2022-03-15 15:25:03,003 INFO L402 AbstractCegarLoop]: === Iteration 400 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:25:03,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:25:03,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1817674631, now seen corresponding path program 398 times [2022-03-15 15:25:03,003 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:25:03,003 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543146909] [2022-03-15 15:25:03,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:25:03,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:25:03,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:25:03,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:25:03,074 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:25:03,074 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543146909] [2022-03-15 15:25:03,074 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543146909] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:25:03,074 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:25:03,074 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:25:03,074 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833744659] [2022-03-15 15:25:03,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:25:03,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:25:03,074 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:25:03,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:25:03,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:25:03,075 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) [2022-03-15 15:25:03,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:25:03,298 INFO L93 Difference]: Finished difference Result 462 states and 1071 transitions. [2022-03-15 15:25:03,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:25:03,299 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:25:03,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:25:03,299 INFO L225 Difference]: With dead ends: 462 [2022-03-15 15:25:03,299 INFO L226 Difference]: Without dead ends: 311 [2022-03-15 15:25:03,299 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:25:03,299 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 [2022-03-15 15:25:03,299 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] [2022-03-15 15:25:03,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2022-03-15 15:25:03,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 311. [2022-03-15 15:25:03,302 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) [2022-03-15 15:25:03,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 705 transitions. [2022-03-15 15:25:03,302 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 705 transitions. Word has length 26 [2022-03-15 15:25:03,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:25:03,302 INFO L470 AbstractCegarLoop]: Abstraction has 311 states and 705 transitions. [2022-03-15 15:25:03,302 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:25:03,302 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 705 transitions. [2022-03-15 15:25:03,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:25:03,303 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:25:03,303 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:25:03,303 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable399 [2022-03-15 15:25:03,303 INFO L402 AbstractCegarLoop]: === Iteration 401 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:25:03,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:25:03,303 INFO L85 PathProgramCache]: Analyzing trace with hash 788638593, now seen corresponding path program 399 times [2022-03-15 15:25:03,303 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:25:03,303 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595708153] [2022-03-15 15:25:03,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:25:03,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:25:03,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:25:03,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:25:03,376 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:25:03,376 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595708153] [2022-03-15 15:25:03,376 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595708153] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:25:03,376 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:25:03,376 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:25:03,376 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959177477] [2022-03-15 15:25:03,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:25:03,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:25:03,376 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:25:03,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:25:03,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:25:03,377 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) [2022-03-15 15:25:03,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:25:03,600 INFO L93 Difference]: Finished difference Result 447 states and 1032 transitions. [2022-03-15 15:25:03,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:25:03,600 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 [2022-03-15 15:25:03,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:25:03,600 INFO L225 Difference]: With dead ends: 447 [2022-03-15 15:25:03,600 INFO L226 Difference]: Without dead ends: 326 [2022-03-15 15:25:03,600 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 [2022-03-15 15:25:03,601 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 [2022-03-15 15:25:03,601 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] [2022-03-15 15:25:03,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2022-03-15 15:25:03,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 326. [2022-03-15 15:25:03,603 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) [2022-03-15 15:25:03,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 732 transitions. [2022-03-15 15:25:03,604 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 732 transitions. Word has length 26 [2022-03-15 15:25:03,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:25:03,604 INFO L470 AbstractCegarLoop]: Abstraction has 326 states and 732 transitions. [2022-03-15 15:25:03,604 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:25:03,604 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 732 transitions. [2022-03-15 15:25:03,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:25:03,604 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:25:03,604 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] [2022-03-15 15:25:03,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable400 [2022-03-15 15:25:03,604 INFO L402 AbstractCegarLoop]: === Iteration 402 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:25:03,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:25:03,604 INFO L85 PathProgramCache]: Analyzing trace with hash -780289949, now seen corresponding path program 400 times [2022-03-15 15:25:03,605 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:25:03,605 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135234978] [2022-03-15 15:25:03,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:25:03,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:25:03,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:25:03,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:25:03,672 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:25:03,672 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135234978] [2022-03-15 15:25:03,672 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135234978] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:25:03,672 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:25:03,672 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:25:03,672 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280027484] [2022-03-15 15:25:03,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:25:03,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:25:03,673 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:25:03,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:25:03,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:25:03,673 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) [2022-03-15 15:25:03,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:25:03,886 INFO L93 Difference]: Finished difference Result 451 states and 1024 transitions. [2022-03-15 15:25:03,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:25:03,887 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:25:03,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:25:03,887 INFO L225 Difference]: With dead ends: 451 [2022-03-15 15:25:03,887 INFO L226 Difference]: Without dead ends: 322 [2022-03-15 15:25:03,887 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:25:03,887 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 58 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 606 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:25:03,887 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] [2022-03-15 15:25:03,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2022-03-15 15:25:03,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 314. [2022-03-15 15:25:03,890 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) [2022-03-15 15:25:03,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 701 transitions. [2022-03-15 15:25:03,890 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 701 transitions. Word has length 26 [2022-03-15 15:25:03,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:25:03,890 INFO L470 AbstractCegarLoop]: Abstraction has 314 states and 701 transitions. [2022-03-15 15:25:03,890 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) [2022-03-15 15:25:03,890 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 701 transitions. [2022-03-15 15:25:03,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:25:03,891 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:25:03,891 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] [2022-03-15 15:25:03,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable401 [2022-03-15 15:25:03,891 INFO L402 AbstractCegarLoop]: === Iteration 403 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:25:03,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:25:03,891 INFO L85 PathProgramCache]: Analyzing trace with hash -937628007, now seen corresponding path program 401 times [2022-03-15 15:25:03,891 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:25:03,891 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578485200] [2022-03-15 15:25:03,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:25:03,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:25:03,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:25:03,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:25:03,975 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:25:03,975 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578485200] [2022-03-15 15:25:03,975 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578485200] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:25:03,975 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:25:03,976 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:25:03,976 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233813578] [2022-03-15 15:25:03,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:25:03,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:25:03,976 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:25:03,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:25:03,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:25:03,976 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) [2022-03-15 15:25:04,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:25:04,184 INFO L93 Difference]: Finished difference Result 411 states and 939 transitions. [2022-03-15 15:25:04,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:25:04,185 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:25:04,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:25:04,185 INFO L225 Difference]: With dead ends: 411 [2022-03-15 15:25:04,185 INFO L226 Difference]: Without dead ends: 282 [2022-03-15 15:25:04,185 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 [2022-03-15 15:25:04,185 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 57 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:25:04,185 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] [2022-03-15 15:25:04,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2022-03-15 15:25:04,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 273. [2022-03-15 15:25:04,188 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) [2022-03-15 15:25:04,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 610 transitions. [2022-03-15 15:25:04,188 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 610 transitions. Word has length 26 [2022-03-15 15:25:04,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:25:04,188 INFO L470 AbstractCegarLoop]: Abstraction has 273 states and 610 transitions. [2022-03-15 15:25:04,188 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:25:04,188 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 610 transitions. [2022-03-15 15:25:04,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:25:04,188 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:25:04,189 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:25:04,189 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable402 [2022-03-15 15:25:04,189 INFO L402 AbstractCegarLoop]: === Iteration 404 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:25:04,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:25:04,189 INFO L85 PathProgramCache]: Analyzing trace with hash -262127465, now seen corresponding path program 402 times [2022-03-15 15:25:04,189 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:25:04,189 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253125591] [2022-03-15 15:25:04,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:25:04,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:25:04,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:25:04,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:25:04,257 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:25:04,257 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253125591] [2022-03-15 15:25:04,257 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253125591] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:25:04,257 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:25:04,258 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:25:04,258 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911829048] [2022-03-15 15:25:04,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:25:04,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:25:04,258 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:25:04,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:25:04,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:25:04,258 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) [2022-03-15 15:25:04,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:25:04,466 INFO L93 Difference]: Finished difference Result 364 states and 835 transitions. [2022-03-15 15:25:04,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:25:04,466 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:25:04,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:25:04,466 INFO L225 Difference]: With dead ends: 364 [2022-03-15 15:25:04,467 INFO L226 Difference]: Without dead ends: 253 [2022-03-15 15:25:04,467 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 [2022-03-15 15:25:04,467 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 45 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:25:04,467 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] [2022-03-15 15:25:04,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2022-03-15 15:25:04,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 244. [2022-03-15 15:25:04,469 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) [2022-03-15 15:25:04,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 553 transitions. [2022-03-15 15:25:04,470 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 553 transitions. Word has length 26 [2022-03-15 15:25:04,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:25:04,470 INFO L470 AbstractCegarLoop]: Abstraction has 244 states and 553 transitions. [2022-03-15 15:25:04,470 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) [2022-03-15 15:25:04,470 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 553 transitions. [2022-03-15 15:25:04,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:25:04,470 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:25:04,470 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:25:04,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable403 [2022-03-15 15:25:04,471 INFO L402 AbstractCegarLoop]: === Iteration 405 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:25:04,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:25:04,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1439375383, now seen corresponding path program 403 times [2022-03-15 15:25:04,471 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:25:04,471 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494796789] [2022-03-15 15:25:04,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:25:04,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:25:04,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:25:04,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:25:04,540 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:25:04,540 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494796789] [2022-03-15 15:25:04,540 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494796789] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:25:04,540 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:25:04,540 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:25:04,540 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496085103] [2022-03-15 15:25:04,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:25:04,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:25:04,540 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:25:04,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:25:04,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:25:04,541 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) [2022-03-15 15:25:04,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:25:04,754 INFO L93 Difference]: Finished difference Result 350 states and 808 transitions. [2022-03-15 15:25:04,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:25:04,754 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:25:04,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:25:04,755 INFO L225 Difference]: With dead ends: 350 [2022-03-15 15:25:04,755 INFO L226 Difference]: Without dead ends: 250 [2022-03-15 15:25:04,755 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:25:04,755 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 45 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 604 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:25:04,755 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] [2022-03-15 15:25:04,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2022-03-15 15:25:04,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 244. [2022-03-15 15:25:04,757 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) [2022-03-15 15:25:04,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 552 transitions. [2022-03-15 15:25:04,757 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 552 transitions. Word has length 26 [2022-03-15 15:25:04,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:25:04,757 INFO L470 AbstractCegarLoop]: Abstraction has 244 states and 552 transitions. [2022-03-15 15:25:04,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:25:04,757 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 552 transitions. [2022-03-15 15:25:04,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:25:04,758 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:25:04,758 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] [2022-03-15 15:25:04,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable404 [2022-03-15 15:25:04,758 INFO L402 AbstractCegarLoop]: === Iteration 406 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:25:04,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:25:04,758 INFO L85 PathProgramCache]: Analyzing trace with hash -111829895, now seen corresponding path program 404 times [2022-03-15 15:25:04,758 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:25:04,758 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550911845] [2022-03-15 15:25:04,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:25:04,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:25:04,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:25:04,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:25:04,827 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:25:04,827 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550911845] [2022-03-15 15:25:04,827 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550911845] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:25:04,827 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:25:04,827 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:25:04,827 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562152516] [2022-03-15 15:25:04,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:25:04,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:25:04,827 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:25:04,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:25:04,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:25:04,828 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) [2022-03-15 15:25:05,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:25:05,036 INFO L93 Difference]: Finished difference Result 360 states and 826 transitions. [2022-03-15 15:25:05,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:25:05,037 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:25:05,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:25:05,037 INFO L225 Difference]: With dead ends: 360 [2022-03-15 15:25:05,037 INFO L226 Difference]: Without dead ends: 265 [2022-03-15 15:25:05,037 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:25:05,037 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 44 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:25:05,037 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] [2022-03-15 15:25:05,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2022-03-15 15:25:05,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 259. [2022-03-15 15:25:05,040 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) [2022-03-15 15:25:05,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 579 transitions. [2022-03-15 15:25:05,041 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 579 transitions. Word has length 26 [2022-03-15 15:25:05,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:25:05,041 INFO L470 AbstractCegarLoop]: Abstraction has 259 states and 579 transitions. [2022-03-15 15:25:05,041 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) [2022-03-15 15:25:05,041 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 579 transitions. [2022-03-15 15:25:05,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:25:05,041 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:25:05,041 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:25:05,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable405 [2022-03-15 15:25:05,042 INFO L402 AbstractCegarLoop]: === Iteration 407 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:25:05,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:25:05,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1503974441, now seen corresponding path program 405 times [2022-03-15 15:25:05,042 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:25:05,042 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853434729] [2022-03-15 15:25:05,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:25:05,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:25:05,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:25:05,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:25:05,112 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:25:05,112 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853434729] [2022-03-15 15:25:05,112 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853434729] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:25:05,112 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:25:05,112 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:25:05,112 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13924486] [2022-03-15 15:25:05,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:25:05,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:25:05,112 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:25:05,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:25:05,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:25:05,113 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) [2022-03-15 15:25:05,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:25:05,318 INFO L93 Difference]: Finished difference Result 368 states and 838 transitions. [2022-03-15 15:25:05,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:25:05,318 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:25:05,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:25:05,319 INFO L225 Difference]: With dead ends: 368 [2022-03-15 15:25:05,319 INFO L226 Difference]: Without dead ends: 268 [2022-03-15 15:25:05,319 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:25:05,319 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 45 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:25:05,319 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] [2022-03-15 15:25:05,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2022-03-15 15:25:05,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 257. [2022-03-15 15:25:05,321 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) [2022-03-15 15:25:05,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 575 transitions. [2022-03-15 15:25:05,321 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 575 transitions. Word has length 26 [2022-03-15 15:25:05,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:25:05,321 INFO L470 AbstractCegarLoop]: Abstraction has 257 states and 575 transitions. [2022-03-15 15:25:05,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:25:05,322 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 575 transitions. [2022-03-15 15:25:05,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:25:05,322 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:25:05,322 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:25:05,322 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable406 [2022-03-15 15:25:05,322 INFO L402 AbstractCegarLoop]: === Iteration 408 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:25:05,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:25:05,322 INFO L85 PathProgramCache]: Analyzing trace with hash 378597293, now seen corresponding path program 406 times [2022-03-15 15:25:05,322 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:25:05,322 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943669387] [2022-03-15 15:25:05,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:25:05,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:25:05,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:25:05,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:25:05,391 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:25:05,391 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943669387] [2022-03-15 15:25:05,391 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943669387] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:25:05,391 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:25:05,391 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:25:05,391 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780403404] [2022-03-15 15:25:05,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:25:05,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:25:05,391 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:25:05,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:25:05,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:25:05,392 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) [2022-03-15 15:25:05,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:25:05,603 INFO L93 Difference]: Finished difference Result 366 states and 838 transitions. [2022-03-15 15:25:05,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:25:05,604 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:25:05,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:25:05,604 INFO L225 Difference]: With dead ends: 366 [2022-03-15 15:25:05,604 INFO L226 Difference]: Without dead ends: 247 [2022-03-15 15:25:05,604 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:25:05,604 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 [2022-03-15 15:25:05,604 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] [2022-03-15 15:25:05,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2022-03-15 15:25:05,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 247. [2022-03-15 15:25:05,606 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) [2022-03-15 15:25:05,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 553 transitions. [2022-03-15 15:25:05,607 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 553 transitions. Word has length 26 [2022-03-15 15:25:05,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:25:05,607 INFO L470 AbstractCegarLoop]: Abstraction has 247 states and 553 transitions. [2022-03-15 15:25:05,607 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) [2022-03-15 15:25:05,607 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 553 transitions. [2022-03-15 15:25:05,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:25:05,607 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:25:05,607 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] [2022-03-15 15:25:05,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable407 [2022-03-15 15:25:05,607 INFO L402 AbstractCegarLoop]: === Iteration 409 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:25:05,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:25:05,608 INFO L85 PathProgramCache]: Analyzing trace with hash 881592293, now seen corresponding path program 407 times [2022-03-15 15:25:05,608 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:25:05,608 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927124495] [2022-03-15 15:25:05,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:25:05,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:25:05,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:25:05,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:25:05,698 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:25:05,698 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927124495] [2022-03-15 15:25:05,698 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927124495] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:25:05,699 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:25:05,699 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:25:05,699 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494594977] [2022-03-15 15:25:05,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:25:05,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:25:05,699 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:25:05,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:25:05,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:25:05,699 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) [2022-03-15 15:25:05,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:25:05,915 INFO L93 Difference]: Finished difference Result 339 states and 779 transitions. [2022-03-15 15:25:05,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:25:05,915 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:25:05,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:25:05,916 INFO L225 Difference]: With dead ends: 339 [2022-03-15 15:25:05,916 INFO L226 Difference]: Without dead ends: 230 [2022-03-15 15:25:05,916 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 [2022-03-15 15:25:05,916 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 50 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 562 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:25:05,916 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] [2022-03-15 15:25:05,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2022-03-15 15:25:05,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 217. [2022-03-15 15:25:05,918 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) [2022-03-15 15:25:05,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 493 transitions. [2022-03-15 15:25:05,918 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 493 transitions. Word has length 26 [2022-03-15 15:25:05,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:25:05,918 INFO L470 AbstractCegarLoop]: Abstraction has 217 states and 493 transitions. [2022-03-15 15:25:05,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:25:05,918 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 493 transitions. [2022-03-15 15:25:05,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:25:05,919 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:25:05,919 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:25:05,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable408 [2022-03-15 15:25:05,919 INFO L402 AbstractCegarLoop]: === Iteration 410 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:25:05,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:25:05,919 INFO L85 PathProgramCache]: Analyzing trace with hash 110431341, now seen corresponding path program 408 times [2022-03-15 15:25:05,919 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:25:05,919 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337698615] [2022-03-15 15:25:05,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:25:05,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:25:05,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:25:05,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:25:05,988 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:25:05,988 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337698615] [2022-03-15 15:25:05,988 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337698615] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:25:05,988 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:25:05,988 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:25:05,989 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909459407] [2022-03-15 15:25:05,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:25:05,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:25:05,989 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:25:05,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:25:05,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:25:05,989 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) [2022-03-15 15:25:06,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:25:06,193 INFO L93 Difference]: Finished difference Result 318 states and 736 transitions. [2022-03-15 15:25:06,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:25:06,193 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 [2022-03-15 15:25:06,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:25:06,193 INFO L225 Difference]: With dead ends: 318 [2022-03-15 15:25:06,194 INFO L226 Difference]: Without dead ends: 213 [2022-03-15 15:25:06,194 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:25:06,194 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 44 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 572 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:25:06,194 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] [2022-03-15 15:25:06,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2022-03-15 15:25:06,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 213. [2022-03-15 15:25:06,196 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) [2022-03-15 15:25:06,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 485 transitions. [2022-03-15 15:25:06,196 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 485 transitions. Word has length 26 [2022-03-15 15:25:06,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:25:06,196 INFO L470 AbstractCegarLoop]: Abstraction has 213 states and 485 transitions. [2022-03-15 15:25:06,196 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:25:06,196 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 485 transitions. [2022-03-15 15:25:06,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:25:06,196 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:25:06,196 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:25:06,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable409 [2022-03-15 15:25:06,197 INFO L402 AbstractCegarLoop]: === Iteration 411 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:25:06,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:25:06,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1120912531, now seen corresponding path program 409 times [2022-03-15 15:25:06,197 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:25:06,197 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018561722] [2022-03-15 15:25:06,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:25:06,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:25:06,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:25:06,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:25:06,259 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:25:06,260 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018561722] [2022-03-15 15:25:06,260 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018561722] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:25:06,260 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:25:06,260 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:25:06,260 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325239323] [2022-03-15 15:25:06,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:25:06,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:25:06,260 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:25:06,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:25:06,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:25:06,260 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) [2022-03-15 15:25:06,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:25:06,432 INFO L93 Difference]: Finished difference Result 318 states and 737 transitions. [2022-03-15 15:25:06,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:25:06,432 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 [2022-03-15 15:25:06,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:25:06,433 INFO L225 Difference]: With dead ends: 318 [2022-03-15 15:25:06,433 INFO L226 Difference]: Without dead ends: 215 [2022-03-15 15:25:06,433 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 [2022-03-15 15:25:06,433 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, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:25:06,433 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 200 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:25:06,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2022-03-15 15:25:06,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2022-03-15 15:25:06,435 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) [2022-03-15 15:25:06,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 487 transitions. [2022-03-15 15:25:06,435 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 487 transitions. Word has length 26 [2022-03-15 15:25:06,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:25:06,435 INFO L470 AbstractCegarLoop]: Abstraction has 215 states and 487 transitions. [2022-03-15 15:25:06,436 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) [2022-03-15 15:25:06,436 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 487 transitions. [2022-03-15 15:25:06,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:25:06,436 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:25:06,436 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:25:06,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable410 [2022-03-15 15:25:06,436 INFO L402 AbstractCegarLoop]: === Iteration 412 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:25:06,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:25:06,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1622849487, now seen corresponding path program 410 times [2022-03-15 15:25:06,436 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:25:06,436 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113886217] [2022-03-15 15:25:06,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:25:06,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:25:06,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:25:06,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:25:06,505 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:25:06,505 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113886217] [2022-03-15 15:25:06,506 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113886217] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:25:06,506 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:25:06,506 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:25:06,506 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835021678] [2022-03-15 15:25:06,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:25:06,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:25:06,506 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:25:06,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:25:06,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:25:06,506 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) [2022-03-15 15:25:06,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:25:06,712 INFO L93 Difference]: Finished difference Result 325 states and 750 transitions. [2022-03-15 15:25:06,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:25:06,713 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:25:06,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:25:06,713 INFO L225 Difference]: With dead ends: 325 [2022-03-15 15:25:06,713 INFO L226 Difference]: Without dead ends: 227 [2022-03-15 15:25:06,713 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 [2022-03-15 15:25:06,713 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 45 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:25:06,713 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] [2022-03-15 15:25:06,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2022-03-15 15:25:06,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 220. [2022-03-15 15:25:06,715 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) [2022-03-15 15:25:06,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 499 transitions. [2022-03-15 15:25:06,716 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 499 transitions. Word has length 26 [2022-03-15 15:25:06,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:25:06,716 INFO L470 AbstractCegarLoop]: Abstraction has 220 states and 499 transitions. [2022-03-15 15:25:06,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:25:06,716 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 499 transitions. [2022-03-15 15:25:06,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:25:06,716 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:25:06,716 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:25:06,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable411 [2022-03-15 15:25:06,716 INFO L402 AbstractCegarLoop]: === Iteration 413 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:25:06,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:25:06,716 INFO L85 PathProgramCache]: Analyzing trace with hash 230704941, now seen corresponding path program 411 times [2022-03-15 15:25:06,716 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:25:06,716 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412425619] [2022-03-15 15:25:06,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:25:06,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:25:06,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:25:06,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:25:06,785 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:25:06,785 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412425619] [2022-03-15 15:25:06,785 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412425619] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:25:06,785 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:25:06,785 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:25:06,785 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273671137] [2022-03-15 15:25:06,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:25:06,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:25:06,785 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:25:06,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:25:06,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:25:06,786 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) [2022-03-15 15:25:06,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:25:06,986 INFO L93 Difference]: Finished difference Result 331 states and 761 transitions. [2022-03-15 15:25:06,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:25:06,987 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:25:06,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:25:06,987 INFO L225 Difference]: With dead ends: 331 [2022-03-15 15:25:06,987 INFO L226 Difference]: Without dead ends: 220 [2022-03-15 15:25:06,987 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:25:06,987 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 46 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:25:06,987 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] [2022-03-15 15:25:06,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-03-15 15:25:06,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 218. [2022-03-15 15:25:06,989 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) [2022-03-15 15:25:06,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 492 transitions. [2022-03-15 15:25:06,990 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 492 transitions. Word has length 26 [2022-03-15 15:25:06,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:25:06,990 INFO L470 AbstractCegarLoop]: Abstraction has 218 states and 492 transitions. [2022-03-15 15:25:06,990 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:25:06,990 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 492 transitions. [2022-03-15 15:25:06,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:25:06,990 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:25:06,990 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] [2022-03-15 15:25:06,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable412 [2022-03-15 15:25:06,990 INFO L402 AbstractCegarLoop]: === Iteration 414 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:25:06,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:25:06,990 INFO L85 PathProgramCache]: Analyzing trace with hash 562071397, now seen corresponding path program 412 times [2022-03-15 15:25:06,990 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:25:06,990 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959610678] [2022-03-15 15:25:06,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:25:06,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:25:06,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:25:07,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:25:07,059 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:25:07,059 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959610678] [2022-03-15 15:25:07,059 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959610678] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:25:07,059 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:25:07,059 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:25:07,059 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104758606] [2022-03-15 15:25:07,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:25:07,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:25:07,060 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:25:07,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:25:07,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:25:07,060 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) [2022-03-15 15:25:07,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:25:07,260 INFO L93 Difference]: Finished difference Result 313 states and 725 transitions. [2022-03-15 15:25:07,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:25:07,260 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:25:07,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:25:07,261 INFO L225 Difference]: With dead ends: 313 [2022-03-15 15:25:07,261 INFO L226 Difference]: Without dead ends: 199 [2022-03-15 15:25:07,261 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:25:07,261 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 51 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 565 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:25:07,261 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] [2022-03-15 15:25:07,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2022-03-15 15:25:07,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 196. [2022-03-15 15:25:07,262 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) [2022-03-15 15:25:07,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 451 transitions. [2022-03-15 15:25:07,263 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 451 transitions. Word has length 26 [2022-03-15 15:25:07,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:25:07,263 INFO L470 AbstractCegarLoop]: Abstraction has 196 states and 451 transitions. [2022-03-15 15:25:07,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:25:07,263 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 451 transitions. [2022-03-15 15:25:07,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:25:07,263 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:25:07,263 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:25:07,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable413 [2022-03-15 15:25:07,263 INFO L402 AbstractCegarLoop]: === Iteration 415 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:25:07,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:25:07,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1658405387, now seen corresponding path program 413 times [2022-03-15 15:25:07,264 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:25:07,264 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439480692] [2022-03-15 15:25:07,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:25:07,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:25:07,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:25:07,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:25:07,333 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:25:07,334 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439480692] [2022-03-15 15:25:07,334 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439480692] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:25:07,334 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:25:07,334 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:25:07,334 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154493347] [2022-03-15 15:25:07,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:25:07,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:25:07,334 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:25:07,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:25:07,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:25:07,334 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) [2022-03-15 15:25:07,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:25:07,528 INFO L93 Difference]: Finished difference Result 296 states and 693 transitions. [2022-03-15 15:25:07,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:25:07,528 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:25:07,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:25:07,528 INFO L225 Difference]: With dead ends: 296 [2022-03-15 15:25:07,528 INFO L226 Difference]: Without dead ends: 191 [2022-03-15 15:25:07,528 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:25:07,529 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 45 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:25:07,529 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] [2022-03-15 15:25:07,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2022-03-15 15:25:07,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 191. [2022-03-15 15:25:07,530 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) [2022-03-15 15:25:07,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 441 transitions. [2022-03-15 15:25:07,531 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 441 transitions. Word has length 26 [2022-03-15 15:25:07,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:25:07,531 INFO L470 AbstractCegarLoop]: Abstraction has 191 states and 441 transitions. [2022-03-15 15:25:07,531 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) [2022-03-15 15:25:07,531 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 441 transitions. [2022-03-15 15:25:07,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:25:07,531 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:25:07,531 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] [2022-03-15 15:25:07,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable414 [2022-03-15 15:25:07,531 INFO L402 AbstractCegarLoop]: === Iteration 416 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:25:07,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:25:07,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1085356631, now seen corresponding path program 414 times [2022-03-15 15:25:07,531 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:25:07,531 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54232797] [2022-03-15 15:25:07,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:25:07,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:25:07,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:25:07,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:25:07,600 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:25:07,600 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54232797] [2022-03-15 15:25:07,600 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54232797] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:25:07,600 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:25:07,600 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:25:07,600 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142603992] [2022-03-15 15:25:07,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:25:07,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:25:07,601 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:25:07,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:25:07,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:25:07,601 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) [2022-03-15 15:25:07,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:25:07,793 INFO L93 Difference]: Finished difference Result 294 states and 685 transitions. [2022-03-15 15:25:07,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:25:07,793 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:25:07,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:25:07,794 INFO L225 Difference]: With dead ends: 294 [2022-03-15 15:25:07,794 INFO L226 Difference]: Without dead ends: 181 [2022-03-15 15:25:07,794 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:25:07,794 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 44 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-03-15 15:25:07,794 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] [2022-03-15 15:25:07,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2022-03-15 15:25:07,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2022-03-15 15:25:07,795 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) [2022-03-15 15:25:07,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 415 transitions. [2022-03-15 15:25:07,796 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 415 transitions. Word has length 26 [2022-03-15 15:25:07,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:25:07,796 INFO L470 AbstractCegarLoop]: Abstraction has 181 states and 415 transitions. [2022-03-15 15:25:07,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:25:07,796 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 415 transitions. [2022-03-15 15:25:07,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:25:07,796 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:25:07,796 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:25:07,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable415 [2022-03-15 15:25:07,796 INFO L402 AbstractCegarLoop]: === Iteration 417 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:25:07,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:25:07,797 INFO L85 PathProgramCache]: Analyzing trace with hash -306787915, now seen corresponding path program 415 times [2022-03-15 15:25:07,797 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:25:07,797 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942004189] [2022-03-15 15:25:07,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:25:07,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:25:07,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:25:07,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:25:07,865 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:25:07,865 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942004189] [2022-03-15 15:25:07,865 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942004189] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:25:07,865 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:25:07,865 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:25:07,866 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879806217] [2022-03-15 15:25:07,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:25:07,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:25:07,866 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:25:07,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:25:07,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:25:07,866 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) [2022-03-15 15:25:08,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:25:08,051 INFO L93 Difference]: Finished difference Result 282 states and 659 transitions. [2022-03-15 15:25:08,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:25:08,052 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:25:08,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:25:08,052 INFO L225 Difference]: With dead ends: 282 [2022-03-15 15:25:08,052 INFO L226 Difference]: Without dead ends: 179 [2022-03-15 15:25:08,052 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:25:08,052 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 [2022-03-15 15:25:08,052 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] [2022-03-15 15:25:08,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2022-03-15 15:25:08,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2022-03-15 15:25:08,054 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) [2022-03-15 15:25:08,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 411 transitions. [2022-03-15 15:25:08,054 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 411 transitions. Word has length 26 [2022-03-15 15:25:08,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:25:08,054 INFO L470 AbstractCegarLoop]: Abstraction has 179 states and 411 transitions. [2022-03-15 15:25:08,054 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) [2022-03-15 15:25:08,054 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 411 transitions. [2022-03-15 15:25:08,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:25:08,054 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:25:08,055 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] [2022-03-15 15:25:08,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable416 [2022-03-15 15:25:08,055 INFO L402 AbstractCegarLoop]: === Iteration 418 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 15:25:08,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:25:08,055 INFO L85 PathProgramCache]: Analyzing trace with hash 2078778819, now seen corresponding path program 416 times [2022-03-15 15:25:08,055 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:25:08,055 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346601201] [2022-03-15 15:25:08,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:25:08,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:25:08,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:25:08,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:25:08,148 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:25:08,148 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346601201] [2022-03-15 15:25:08,148 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346601201] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:25:08,148 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:25:08,148 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:25:08,148 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200437047] [2022-03-15 15:25:08,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:25:08,148 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:25:08,148 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:25:08,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:25:08,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:25:08,149 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) [2022-03-15 15:25:08,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:25:08,306 INFO L93 Difference]: Finished difference Result 178 states and 410 transitions. [2022-03-15 15:25:08,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 15:25:08,307 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-03-15 15:25:08,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:25:08,307 INFO L225 Difference]: With dead ends: 178 [2022-03-15 15:25:08,307 INFO L226 Difference]: Without dead ends: 0 [2022-03-15 15:25:08,307 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 [2022-03-15 15:25:08,307 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, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:25:08,307 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 235 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:25:08,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-03-15 15:25:08,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-03-15 15:25:08,307 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) [2022-03-15 15:25:08,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-03-15 15:25:08,307 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2022-03-15 15:25:08,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:25:08,308 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-03-15 15:25:08,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:25:08,308 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-03-15 15:25:08,308 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-03-15 15:25:08,311 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (4 of 5 remaining) [2022-03-15 15:25:08,311 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2022-03-15 15:25:08,311 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2022-03-15 15:25:08,311 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2022-03-15 15:25:08,311 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2022-03-15 15:25:08,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable417 [2022-03-15 15:25:08,313 INFO L732 BasicCegarLoop]: Path program histogram: [416, 1, 1] [2022-03-15 15:25:08,315 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-15 15:25:08,315 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-15 15:25:08,316 INFO L202 PluginConnector]: Adding new model sum_invariant.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.03 03:25:08 BasicIcfg [2022-03-15 15:25:08,316 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-15 15:25:08,316 INFO L158 Benchmark]: Toolchain (without parser) took 140272.56ms. Allocated memory was 184.5MB in the beginning and 361.8MB in the end (delta: 177.2MB). Free memory was 142.4MB in the beginning and 327.7MB in the end (delta: -185.3MB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-15 15:25:08,316 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.12ms. Allocated memory is still 184.5MB. Free memory is still 143.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-15 15:25:08,316 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.67ms. Allocated memory is still 184.5MB. Free memory was 142.3MB in the beginning and 140.8MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-15 15:25:08,316 INFO L158 Benchmark]: Boogie Preprocessor took 11.77ms. Allocated memory is still 184.5MB. Free memory was 140.8MB in the beginning and 139.9MB in the end (delta: 866.9kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-15 15:25:08,317 INFO L158 Benchmark]: RCFGBuilder took 172.86ms. Allocated memory is still 184.5MB. Free memory was 139.9MB in the beginning and 132.0MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-03-15 15:25:08,317 INFO L158 Benchmark]: TraceAbstraction took 140056.15ms. Allocated memory was 184.5MB in the beginning and 361.8MB in the end (delta: 177.2MB). Free memory was 131.5MB in the beginning and 327.7MB in the end (delta: -196.1MB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-15 15:25:08,317 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 0.12ms. Allocated memory is still 184.5MB. Free memory is still 143.4MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 26.67ms. Allocated memory is still 184.5MB. Free memory was 142.3MB in the beginning and 140.8MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 11.77ms. Allocated memory is still 184.5MB. Free memory was 140.8MB in the beginning and 139.9MB in the end (delta: 866.9kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 172.86ms. Allocated memory is still 184.5MB. Free memory was 139.9MB in the beginning and 132.0MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * TraceAbstraction took 140056.15ms. Allocated memory was 184.5MB in the beginning and 361.8MB in the end (delta: 177.2MB). Free memory was 131.5MB in the beginning and 327.7MB in the end (delta: -196.1MB). There was no memory consumed. Max. memory is 8.0GB. * 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: 139.9s, OverallIterations: 418, TraceHistogramMax: 1, PathProgramHistogramMax: 416, EmptinessCheckTime: 0.6s, AutomataDifference: 100.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21622 SdHoareTripleChecker+Valid, 95.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21622 mSDsluCounter, 102830 SdHoareTripleChecker+Invalid, 78.2s 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, 19.0s 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: 5.7s AutomataMinimizationTime, 418 MinimizatonAttempts, 33805 StatesRemovedByMinimization, 402 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 30.9s 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! [2022-03-15 15:25:08,344 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...